diff options
Diffstat (limited to 'drivers')
64 files changed, 5255 insertions, 2325 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index bf892bd68c17..8ae1f5b19669 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -683,4 +683,17 @@ config GPIO_MSIC Enable support for GPIO on intel MSIC controllers found in intel MID devices +comment "USB GPIO expanders:" + +config GPIO_VIPERBOARD + tristate "Viperboard GPIO a & b support" + depends on MFD_VIPERBOARD && USB + help + Say yes here to access the GPIO signals of Nano River + Technologies Viperboard. There are two GPIO chips on the + board: gpioa and gpiob. + See viperboard API specification and Nano + River Tech's viperboard.h for detailed meaning + of the module parameters. + endif diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 76b344683251..c5aebd008dde 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -76,6 +76,7 @@ obj-$(CONFIG_GPIO_TS5500) += gpio-ts5500.o obj-$(CONFIG_GPIO_TWL4030) += gpio-twl4030.o obj-$(CONFIG_GPIO_TWL6040) += gpio-twl6040.o obj-$(CONFIG_GPIO_UCB1400) += gpio-ucb1400.o +obj-$(CONFIG_GPIO_VIPERBOARD) += gpio-viperboard.o obj-$(CONFIG_GPIO_VR41XX) += gpio-vr41xx.o obj-$(CONFIG_GPIO_VT8500) += gpio-vt8500.o obj-$(CONFIG_GPIO_VX855) += gpio-vx855.o diff --git a/drivers/gpio/gpio-da9052.c b/drivers/gpio/gpio-da9052.c index a05aacd2777a..29b11e9b6a78 100644 --- a/drivers/gpio/gpio-da9052.c +++ b/drivers/gpio/gpio-da9052.c @@ -185,7 +185,11 @@ static int da9052_gpio_to_irq(struct gpio_chip *gc, u32 offset) struct da9052_gpio *gpio = to_da9052_gpio(gc); struct da9052 *da9052 = gpio->da9052; - return da9052->irq_base + DA9052_IRQ_GPI0 + offset; + int irq; + + irq = regmap_irq_get_virq(da9052->irq_data, DA9052_IRQ_GPI0 + offset); + + return irq; } static struct gpio_chip reference_gp = { diff --git a/drivers/gpio/gpio-tps6586x.c b/drivers/gpio/gpio-tps6586x.c index c1b82da56504..29e8e750bd49 100644 --- a/drivers/gpio/gpio-tps6586x.c +++ b/drivers/gpio/gpio-tps6586x.c @@ -80,6 +80,14 @@ static int tps6586x_gpio_output(struct gpio_chip *gc, unsigned offset, val, mask); } +static int tps6586x_gpio_to_irq(struct gpio_chip *gc, unsigned offset) +{ + struct tps6586x_gpio *tps6586x_gpio = to_tps6586x_gpio(gc); + + return tps6586x_irq_get_virq(tps6586x_gpio->parent, + TPS6586X_INT_PLDO_0 + offset); +} + static int tps6586x_gpio_probe(struct platform_device *pdev) { struct tps6586x_platform_data *pdata; @@ -106,6 +114,7 @@ static int tps6586x_gpio_probe(struct platform_device *pdev) tps6586x_gpio->gpio_chip.direction_output = tps6586x_gpio_output; tps6586x_gpio->gpio_chip.set = tps6586x_gpio_set; tps6586x_gpio->gpio_chip.get = tps6586x_gpio_get; + tps6586x_gpio->gpio_chip.to_irq = tps6586x_gpio_to_irq; #ifdef CONFIG_OF_GPIO tps6586x_gpio->gpio_chip.of_node = pdev->dev.parent->of_node; diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c index 00329f2fc05b..9572aa137e6f 100644 --- a/drivers/gpio/gpio-twl4030.c +++ b/drivers/gpio/gpio-twl4030.c @@ -355,13 +355,13 @@ static struct gpio_chip twl_gpiochip = { static int gpio_twl4030_pulls(u32 ups, u32 downs) { - u8 message[6]; + u8 message[5]; unsigned i, gpio_bit; /* For most pins, a pulldown was enabled by default. * We should have data that's specific to this board. */ - for (gpio_bit = 1, i = 1; i < 6; i++) { + for (gpio_bit = 1, i = 0; i < 5; i++) { u8 bit_mask; unsigned j; @@ -380,16 +380,16 @@ static int gpio_twl4030_pulls(u32 ups, u32 downs) static int gpio_twl4030_debounce(u32 debounce, u8 mmc_cd) { - u8 message[4]; + u8 message[3]; /* 30 msec of debouncing is always used for MMC card detect, * and is optional for everything else. */ - message[1] = (debounce & 0xff) | (mmc_cd & 0x03); + message[0] = (debounce & 0xff) | (mmc_cd & 0x03); debounce >>= 8; - message[2] = (debounce & 0xff); + message[1] = (debounce & 0xff); debounce >>= 8; - message[3] = (debounce & 0x03); + message[2] = (debounce & 0x03); return twl_i2c_write(TWL4030_MODULE_GPIO, message, REG_GPIO_DEBEN1, 3); diff --git a/drivers/gpio/gpio-viperboard.c b/drivers/gpio/gpio-viperboard.c new file mode 100644 index 000000000000..13772996cf24 --- /dev/null +++ b/drivers/gpio/gpio-viperboard.c @@ -0,0 +1,517 @@ +/* + * Nano River Technologies viperboard GPIO lib driver + * + * (C) 2012 by Lemonage GmbH + * Author: Lars Poeschel <poeschel@lemonage.de> + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> + +#include <linux/usb.h> +#include <linux/gpio.h> + +#include <linux/mfd/viperboard.h> + +#define VPRBRD_GPIOA_CLK_1MHZ 0 +#define VPRBRD_GPIOA_CLK_100KHZ 1 +#define VPRBRD_GPIOA_CLK_10KHZ 2 +#define VPRBRD_GPIOA_CLK_1KHZ 3 +#define VPRBRD_GPIOA_CLK_100HZ 4 +#define VPRBRD_GPIOA_CLK_10HZ 5 + +#define VPRBRD_GPIOA_FREQ_DEFAULT 1000 + +#define VPRBRD_GPIOA_CMD_CONT 0x00 +#define VPRBRD_GPIOA_CMD_PULSE 0x01 +#define VPRBRD_GPIOA_CMD_PWM 0x02 +#define VPRBRD_GPIOA_CMD_SETOUT 0x03 +#define VPRBRD_GPIOA_CMD_SETIN 0x04 +#define VPRBRD_GPIOA_CMD_SETINT 0x05 +#define VPRBRD_GPIOA_CMD_GETIN 0x06 + +#define VPRBRD_GPIOB_CMD_SETDIR 0x00 +#define VPRBRD_GPIOB_CMD_SETVAL 0x01 + +struct vprbrd_gpioa_msg { + u8 cmd; + u8 clk; + u8 offset; + u8 t1; + u8 t2; + u8 invert; + u8 pwmlevel; + u8 outval; + u8 risefall; + u8 answer; + u8 __fill; +} __packed; + +struct vprbrd_gpiob_msg { + u8 cmd; + u16 val; + u16 mask; +} __packed; + +struct vprbrd_gpio { + struct gpio_chip gpioa; /* gpio a related things */ + u32 gpioa_out; + u32 gpioa_val; + struct gpio_chip gpiob; /* gpio b related things */ + u32 gpiob_out; + u32 gpiob_val; + struct vprbrd *vb; +}; + +/* gpioa sampling clock module parameter */ +static unsigned char gpioa_clk; +static unsigned int gpioa_freq = VPRBRD_GPIOA_FREQ_DEFAULT; +module_param(gpioa_freq, uint, 0); +MODULE_PARM_DESC(gpioa_freq, + "gpio-a sampling freq in Hz (default is 1000Hz) valid values: 10, 100, 1000, 10000, 100000, 1000000"); + +/* ----- begin of gipo a chip -------------------------------------------- */ + +static int vprbrd_gpioa_get(struct gpio_chip *chip, + unsigned offset) +{ + int ret, answer, error = 0; + struct vprbrd_gpio *gpio = + container_of(chip, struct vprbrd_gpio, gpioa); + struct vprbrd *vb = gpio->vb; + struct vprbrd_gpioa_msg *gamsg = (struct vprbrd_gpioa_msg *)vb->buf; + + /* if io is set to output, just return the saved value */ + if (gpio->gpioa_out & (1 << offset)) + return gpio->gpioa_val & (1 << offset); + + mutex_lock(&vb->lock); + + gamsg->cmd = VPRBRD_GPIOA_CMD_GETIN; + gamsg->clk = 0x00; + gamsg->offset = offset; + gamsg->t1 = 0x00; + gamsg->t2 = 0x00; + gamsg->invert = 0x00; + gamsg->pwmlevel = 0x00; + gamsg->outval = 0x00; + gamsg->risefall = 0x00; + gamsg->answer = 0x00; + gamsg->__fill = 0x00; + + ret = usb_control_msg(vb->usb_dev, usb_sndctrlpipe(vb->usb_dev, 0), + VPRBRD_USB_REQUEST_GPIOA, VPRBRD_USB_TYPE_OUT, 0x0000, + 0x0000, gamsg, sizeof(struct vprbrd_gpioa_msg), + VPRBRD_USB_TIMEOUT_MS); + if (ret != sizeof(struct vprbrd_gpioa_msg)) + error = -EREMOTEIO; + + ret = usb_control_msg(vb->usb_dev, usb_rcvctrlpipe(vb->usb_dev, 0), + VPRBRD_USB_REQUEST_GPIOA, VPRBRD_USB_TYPE_IN, 0x0000, + 0x0000, gamsg, sizeof(struct vprbrd_gpioa_msg), + VPRBRD_USB_TIMEOUT_MS); + answer = gamsg->answer & 0x01; + + mutex_unlock(&vb->lock); + + if (ret != sizeof(struct vprbrd_gpioa_msg)) + error = -EREMOTEIO; + + if (error) + return error; + + return answer; +} + +static void vprbrd_gpioa_set(struct gpio_chip *chip, + unsigned offset, int value) +{ + int ret; + struct vprbrd_gpio *gpio = + container_of(chip, struct vprbrd_gpio, gpioa); + struct vprbrd *vb = gpio->vb; + struct vprbrd_gpioa_msg *gamsg = (struct vprbrd_gpioa_msg *)vb->buf; + + if (gpio->gpioa_out & (1 << offset)) { + if (value) + gpio->gpioa_val |= (1 << offset); + else + gpio->gpioa_val &= ~(1 << offset); + + mutex_lock(&vb->lock); + + gamsg->cmd = VPRBRD_GPIOA_CMD_SETOUT; + gamsg->clk = 0x00; + gamsg->offset = offset; + gamsg->t1 = 0x00; + gamsg->t2 = 0x00; + gamsg->invert = 0x00; + gamsg->pwmlevel = 0x00; + gamsg->outval = value; + gamsg->risefall = 0x00; + gamsg->answer = 0x00; + gamsg->__fill = 0x00; + + ret = usb_control_msg(vb->usb_dev, + usb_sndctrlpipe(vb->usb_dev, 0), + VPRBRD_USB_REQUEST_GPIOA, VPRBRD_USB_TYPE_OUT, + 0x0000, 0x0000, gamsg, + sizeof(struct vprbrd_gpioa_msg), VPRBRD_USB_TIMEOUT_MS); + + mutex_unlock(&vb->lock); + + if (ret != sizeof(struct vprbrd_gpioa_msg)) + dev_err(chip->dev, "usb error setting pin value\n"); + } +} + +static int vprbrd_gpioa_direction_input(struct gpio_chip *chip, + unsigned offset) +{ + int ret; + struct vprbrd_gpio *gpio = + container_of(chip, struct vprbrd_gpio, gpioa); + struct vprbrd *vb = gpio->vb; + struct vprbrd_gpioa_msg *gamsg = (struct vprbrd_gpioa_msg *)vb->buf; + + gpio->gpioa_out &= ~(1 << offset); + + mutex_lock(&vb->lock); + + gamsg->cmd = VPRBRD_GPIOA_CMD_SETIN; + gamsg->clk = gpioa_clk; + gamsg->offset = offset; + gamsg->t1 = 0x00; + gamsg->t2 = 0x00; + gamsg->invert = 0x00; + gamsg->pwmlevel = 0x00; + gamsg->outval = 0x00; + gamsg->risefall = 0x00; + gamsg->answer = 0x00; + gamsg->__fill = 0x00; + + ret = usb_control_msg(vb->usb_dev, usb_sndctrlpipe(vb->usb_dev, 0), + VPRBRD_USB_REQUEST_GPIOA, VPRBRD_USB_TYPE_OUT, 0x0000, + 0x0000, gamsg, sizeof(struct vprbrd_gpioa_msg), + VPRBRD_USB_TIMEOUT_MS); + + mutex_unlock(&vb->lock); + + if (ret != sizeof(struct vprbrd_gpioa_msg)) + return -EREMOTEIO; + + return 0; +} + +static int vprbrd_gpioa_direction_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + int ret; + struct vprbrd_gpio *gpio = + container_of(chip, struct vprbrd_gpio, gpioa); + struct vprbrd *vb = gpio->vb; + struct vprbrd_gpioa_msg *gamsg = (struct vprbrd_gpioa_msg *)vb->buf; + + gpio->gpioa_out |= (1 << offset); + if (value) + gpio->gpioa_val |= (1 << offset); + else + gpio->gpioa_val &= ~(1 << offset); + + mutex_lock(&vb->lock); + + gamsg->cmd = VPRBRD_GPIOA_CMD_SETOUT; + gamsg->clk = 0x00; + gamsg->offset = offset; + gamsg->t1 = 0x00; + gamsg->t2 = 0x00; + gamsg->invert = 0x00; + gamsg->pwmlevel = 0x00; + gamsg->outval = value; + gamsg->risefall = 0x00; + gamsg->answer = 0x00; + gamsg->__fill = 0x00; + + ret = usb_control_msg(vb->usb_dev, usb_sndctrlpipe(vb->usb_dev, 0), + VPRBRD_USB_REQUEST_GPIOA, VPRBRD_USB_TYPE_OUT, 0x0000, + 0x0000, gamsg, sizeof(struct vprbrd_gpioa_msg), + VPRBRD_USB_TIMEOUT_MS); + + mutex_unlock(&vb->lock); + + if (ret != sizeof(struct vprbrd_gpioa_msg)) + return -EREMOTEIO; + + return 0; +} + +/* ----- end of gpio a chip ---------------------------------------------- */ + +/* ----- begin of gipo b chip -------------------------------------------- */ + +static int vprbrd_gpiob_setdir(struct vprbrd *vb, unsigned offset, + unsigned dir) +{ + struct vprbrd_gpiob_msg *gbmsg = (struct vprbrd_gpiob_msg *)vb->buf; + int ret; + + gbmsg->cmd = VPRBRD_GPIOB_CMD_SETDIR; + gbmsg->val = cpu_to_be16(dir << offset); + gbmsg->mask = cpu_to_be16(0x0001 << offset); + + ret = usb_control_msg(vb->usb_dev, usb_sndctrlpipe(vb->usb_dev, 0), + VPRBRD_USB_REQUEST_GPIOB, VPRBRD_USB_TYPE_OUT, 0x0000, + 0x0000, gbmsg, sizeof(struct vprbrd_gpiob_msg), + VPRBRD_USB_TIMEOUT_MS); + + if (ret != sizeof(struct vprbrd_gpiob_msg)) + return -EREMOTEIO; + + return 0; +} + +static int vprbrd_gpiob_get(struct gpio_chip *chip, + unsigned offset) +{ + int ret; + u16 val; + struct vprbrd_gpio *gpio = + container_of(chip, struct vprbrd_gpio, gpiob); + struct vprbrd *vb = gpio->vb; + struct vprbrd_gpiob_msg *gbmsg = (struct vprbrd_gpiob_msg *)vb->buf; + + /* if io is set to output, just return the saved value */ + if (gpio->gpiob_out & (1 << offset)) + return gpio->gpiob_val & (1 << offset); + + mutex_lock(&vb->lock); + + ret = usb_control_msg(vb->usb_dev, usb_rcvctrlpipe(vb->usb_dev, 0), + VPRBRD_USB_REQUEST_GPIOB, VPRBRD_USB_TYPE_IN, 0x0000, + 0x0000, gbmsg, sizeof(struct vprbrd_gpiob_msg), + VPRBRD_USB_TIMEOUT_MS); + val = gbmsg->val; + + mutex_unlock(&vb->lock); + + if (ret != sizeof(struct vprbrd_gpiob_msg)) + return ret; + + /* cache the read values */ + gpio->gpiob_val = be16_to_cpu(val); + + return (gpio->gpiob_val >> offset) & 0x1; +} + +static void vprbrd_gpiob_set(struct gpio_chip *chip, + unsigned offset, int value) +{ + int ret; + struct vprbrd_gpio *gpio = + container_of(chip, struct vprbrd_gpio, gpiob); + struct vprbrd *vb = gpio->vb; + struct vprbrd_gpiob_msg *gbmsg = (struct vprbrd_gpiob_msg *)vb->buf; + + if (gpio->gpiob_out & (1 << offset)) { + if (value) + gpio->gpiob_val |= (1 << offset); + else + gpio->gpiob_val &= ~(1 << offset); + + mutex_lock(&vb->lock); + + gbmsg->cmd = VPRBRD_GPIOB_CMD_SETVAL; + gbmsg->val = cpu_to_be16(value << offset); + gbmsg->mask = cpu_to_be16(0x0001 << offset); + + ret = usb_control_msg(vb->usb_dev, + usb_sndctrlpipe(vb->usb_dev, 0), + VPRBRD_USB_REQUEST_GPIOB, VPRBRD_USB_TYPE_OUT, + 0x0000, 0x0000, gbmsg, + sizeof(struct vprbrd_gpiob_msg), VPRBRD_USB_TIMEOUT_MS); + + mutex_unlock(&vb->lock); + + if (ret != sizeof(struct vprbrd_gpiob_msg)) + dev_err(chip->dev, "usb error setting pin value\n"); + } +} + +static int vprbrd_gpiob_direction_input(struct gpio_chip *chip, + unsigned offset) +{ + int ret; + struct vprbrd_gpio *gpio = + container_of(chip, struct vprbrd_gpio, gpiob); + struct vprbrd *vb = gpio->vb; + + gpio->gpiob_out &= ~(1 << offset); + + mutex_lock(&vb->lock); + + ret = vprbrd_gpiob_setdir(vb, offset, 0); + + mutex_unlock(&vb->lock); + + if (ret) + dev_err(chip->dev, "usb error setting pin to input\n"); + + return ret; +} + +static int vprbrd_gpiob_direction_output(struct gpio_chip *chip, + unsigned offset, int value) +{ + int ret; + struct vprbrd_gpio *gpio = + container_of(chip, struct vprbrd_gpio, gpiob); + struct vprbrd *vb = gpio->vb; + + gpio->gpiob_out |= (1 << offset); + if (value) + gpio->gpiob_val |= (1 << offset); + else + gpio->gpiob_val &= ~(1 << offset); + + mutex_lock(&vb->lock); + + ret = vprbrd_gpiob_setdir(vb, offset, 1); + if (ret) + dev_err(chip->dev, "usb error setting pin to output\n"); + + mutex_unlock(&vb->lock); + + vprbrd_gpiob_set(chip, offset, value); + + return ret; +} + +/* ----- end of gpio b chip ---------------------------------------------- */ + +static int __devinit vprbrd_gpio_probe(struct platform_device *pdev) +{ + struct vprbrd *vb = dev_get_drvdata(pdev->dev.parent); + struct vprbrd_gpio *vb_gpio; + int ret; + + vb_gpio = devm_kzalloc(&pdev->dev, sizeof(*vb_gpio), GFP_KERNEL); + if (vb_gpio == NULL) + return -ENOMEM; + + vb_gpio->vb = vb; + /* registering gpio a */ + vb_gpio->gpioa.label = "viperboard gpio a"; + vb_gpio->gpioa.dev = &pdev->dev; + vb_gpio->gpioa.owner = THIS_MODULE; + vb_gpio->gpioa.base = -1; + vb_gpio->gpioa.ngpio = 16; + vb_gpio->gpioa.can_sleep = 1; + vb_gpio->gpioa.set = vprbrd_gpioa_set; + vb_gpio->gpioa.get = vprbrd_gpioa_get; + vb_gpio->gpioa.direction_input = vprbrd_gpioa_direction_input; + vb_gpio->gpioa.direction_output = vprbrd_gpioa_direction_output; + ret = gpiochip_add(&vb_gpio->gpioa); + if (ret < 0) { + dev_err(vb_gpio->gpioa.dev, "could not add gpio a"); + goto err_gpioa; + } + + /* registering gpio b */ + vb_gpio->gpiob.label = "viperboard gpio b"; + vb_gpio->gpiob.dev = &pdev->dev; + vb_gpio->gpiob.owner = THIS_MODULE; + vb_gpio->gpiob.base = -1; + vb_gpio->gpiob.ngpio = 16; + vb_gpio->gpiob.can_sleep = 1; + vb_gpio->gpiob.set = vprbrd_gpiob_set; + vb_gpio->gpiob.get = vprbrd_gpiob_get; + vb_gpio->gpiob.direction_input = vprbrd_gpiob_direction_input; + vb_gpio->gpiob.direction_output = vprbrd_gpiob_direction_output; + ret = gpiochip_add(&vb_gpio->gpiob); + if (ret < 0) { + dev_err(vb_gpio->gpiob.dev, "could not add gpio b"); + goto err_gpiob; + } + + platform_set_drvdata(pdev, vb_gpio); + + return ret; + +err_gpiob: + ret = gpiochip_remove(&vb_gpio->gpioa); + +err_gpioa: + return ret; +} + +static int __devexit vprbrd_gpio_remove(struct platform_device *pdev) +{ + struct vprbrd_gpio *vb_gpio = platform_get_drvdata(pdev); + int ret; + + ret = gpiochip_remove(&vb_gpio->gpiob); + if (ret == 0) + ret = gpiochip_remove(&vb_gpio->gpioa); + + return ret; +} + +static struct platform_driver vprbrd_gpio_driver = { + .driver.name = "viperboard-gpio", + .driver.owner = THIS_MODULE, + .probe = vprbrd_gpio_probe, + .remove = __devexit_p(vprbrd_gpio_remove), +}; + +static int __init vprbrd_gpio_init(void) +{ + switch (gpioa_freq) { + case 1000000: + gpioa_clk = VPRBRD_GPIOA_CLK_1MHZ; + break; + case 100000: + gpioa_clk = VPRBRD_GPIOA_CLK_100KHZ; + break; + case 10000: + gpioa_clk = VPRBRD_GPIOA_CLK_10KHZ; + break; + case 1000: + gpioa_clk = VPRBRD_GPIOA_CLK_1KHZ; + break; + case 100: + gpioa_clk = VPRBRD_GPIOA_CLK_100HZ; + break; + case 10: + gpioa_clk = VPRBRD_GPIOA_CLK_10HZ; + break; + default: + pr_warn("invalid gpioa_freq (%d)\n", gpioa_freq); + gpioa_clk = VPRBRD_GPIOA_CLK_1KHZ; + } + + return platform_driver_register(&vprbrd_gpio_driver); +} +subsys_initcall(vprbrd_gpio_init); + +static void __exit vprbrd_gpio_exit(void) +{ + platform_driver_unregister(&vprbrd_gpio_driver); +} +module_exit(vprbrd_gpio_exit); + +MODULE_AUTHOR("Lars Poeschel <poeschel@lemonage.de>"); +MODULE_DESCRIPTION("GPIO driver for Nano River Techs Viperboard"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:viperboard-gpio"); diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index e9df4612b7eb..c7bff51fe524 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -818,6 +818,16 @@ config I2C_TINY_USB This driver can also be built as a module. If so, the module will be called i2c-tiny-usb. +config I2C_VIPERBOARD + tristate "Viperboard I2C master support" + depends on MFD_VIPERBOARD && USB + help + Say yes here to access the I2C part of the Nano River + Technologies Viperboard as I2C master. + See viperboard API specification and Nano + River Tech's viperboard.h for detailed meaning + of the module parameters. + comment "Other I2C/SMBus bus drivers" config I2C_ACORN diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index 395b516ffa08..e5cb209d276c 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -79,6 +79,7 @@ obj-$(CONFIG_I2C_PARPORT) += i2c-parport.o obj-$(CONFIG_I2C_PARPORT_LIGHT) += i2c-parport-light.o obj-$(CONFIG_I2C_TAOS_EVM) += i2c-taos-evm.o obj-$(CONFIG_I2C_TINY_USB) += i2c-tiny-usb.o +obj-$(CONFIG_I2C_VIPERBOARD) += i2c-viperboard.o # Other I2C/SMBus bus drivers obj-$(CONFIG_I2C_ACORN) += i2c-acorn.o diff --git a/drivers/i2c/busses/i2c-viperboard.c b/drivers/i2c/busses/i2c-viperboard.c new file mode 100644 index 000000000000..f5fa20dea906 --- /dev/null +++ b/drivers/i2c/busses/i2c-viperboard.c @@ -0,0 +1,480 @@ +/* + * Nano River Technologies viperboard i2c master driver + * + * (C) 2012 by Lemonage GmbH + * Author: Lars Poeschel <poeschel@lemonage.de> + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> + +#include <linux/usb.h> +#include <linux/i2c.h> + +#include <linux/mfd/viperboard.h> + +struct vprbrd_i2c { + struct i2c_adapter i2c; + u8 bus_freq_param; +}; + +/* i2c bus frequency module parameter */ +static u8 i2c_bus_param; +static unsigned int i2c_bus_freq = 100; +module_param(i2c_bus_freq, int, 0); +MODULE_PARM_DESC(i2c_bus_freq, + "i2c bus frequency in khz (default is 100) valid values: 10, 100, 200, 400, 1000, 3000, 6000"); + +static int vprbrd_i2c_status(struct i2c_adapter *i2c, + struct vprbrd_i2c_status *status, bool prev_error) +{ + u16 bytes_xfer; + int ret; + struct vprbrd *vb = (struct vprbrd *)i2c->algo_data; + + /* check for protocol error */ + bytes_xfer = sizeof(struct vprbrd_i2c_status); + + ret = usb_control_msg(vb->usb_dev, usb_rcvctrlpipe(vb->usb_dev, 0), + VPRBRD_USB_REQUEST_I2C, VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, + status, bytes_xfer, VPRBRD_USB_TIMEOUT_MS); + + if (ret != bytes_xfer) + prev_error = true; + + if (prev_error) { + dev_err(&i2c->dev, "failure in usb communication\n"); + return -EREMOTEIO; + } + + dev_dbg(&i2c->dev, " status = %d\n", status->status); + if (status->status != 0x00) { + dev_err(&i2c->dev, "failure: i2c protocol error\n"); + return -EPROTO; + } + return 0; +} + +static int vprbrd_i2c_receive(struct usb_device *usb_dev, + struct vprbrd_i2c_read_msg *rmsg, int bytes_xfer) +{ + int ret, bytes_actual; + int error = 0; + + /* send the read request */ + ret = usb_bulk_msg(usb_dev, + usb_sndbulkpipe(usb_dev, VPRBRD_EP_OUT), rmsg, + sizeof(struct vprbrd_i2c_read_hdr), &bytes_actual, + VPRBRD_USB_TIMEOUT_MS); + + if ((ret < 0) + || (bytes_actual != sizeof(struct vprbrd_i2c_read_hdr))) { + dev_err(&usb_dev->dev, "failure transmitting usb\n"); + error = -EREMOTEIO; + } + + /* read the actual data */ + ret = usb_bulk_msg(usb_dev, + usb_rcvbulkpipe(usb_dev, VPRBRD_EP_IN), rmsg, + bytes_xfer, &bytes_actual, VPRBRD_USB_TIMEOUT_MS); + + if ((ret < 0) || (bytes_xfer != bytes_actual)) { + dev_err(&usb_dev->dev, "failure receiving usb\n"); + error = -EREMOTEIO; + } + return error; +} + +static int vprbrd_i2c_addr(struct usb_device *usb_dev, + struct vprbrd_i2c_addr_msg *amsg) +{ + int ret, bytes_actual; + + ret = usb_bulk_msg(usb_dev, + usb_sndbulkpipe(usb_dev, VPRBRD_EP_OUT), amsg, + sizeof(struct vprbrd_i2c_addr_msg), &bytes_actual, + VPRBRD_USB_TIMEOUT_MS); + + if ((ret < 0) || + (sizeof(struct vprbrd_i2c_addr_msg) != bytes_actual)) { + dev_err(&usb_dev->dev, "failure transmitting usb\n"); + return -EREMOTEIO; + } + return 0; +} + +static int vprbrd_i2c_read(struct vprbrd *vb, struct i2c_msg *msg) +{ + int ret; + u16 remain_len, bytes_xfer, len1, len2, + start = 0x0000; + struct vprbrd_i2c_read_msg *rmsg = + (struct vprbrd_i2c_read_msg *)vb->buf; + + remain_len = msg->len; + rmsg->header.cmd = VPRBRD_I2C_CMD_READ; + while (remain_len > 0) { + rmsg->header.addr = cpu_to_le16(start + 0x4000); + if (remain_len <= 255) { + len1 = remain_len; + len2 = 0x00; + rmsg->header.len0 = remain_len; + rmsg->header.len1 = 0x00; + rmsg->header.len2 = 0x00; + rmsg->header.len3 = 0x00; + rmsg->header.len4 = 0x00; + rmsg->header.len5 = 0x00; + remain_len = 0; + } else if (remain_len <= 510) { + len1 = remain_len; + len2 = 0x00; + rmsg->header.len0 = remain_len - 255; + rmsg->header.len1 = 0xff; + rmsg->header.len2 = 0x00; + rmsg->header.len3 = 0x00; + rmsg->header.len4 = 0x00; + rmsg->header.len5 = 0x00; + remain_len = 0; + } else if (remain_len <= 512) { + len1 = remain_len; + len2 = 0x00; + rmsg->header.len0 = remain_len - 510; + rmsg->header.len1 = 0xff; + rmsg->header.len2 = 0xff; + rmsg->header.len3 = 0x00; + rmsg->header.len4 = 0x00; + rmsg->header.len5 = 0x00; + remain_len = 0; + } else if (remain_len <= 767) { + len1 = 512; + len2 = remain_len - 512; + rmsg->header.len0 = 0x02; + rmsg->header.len1 = 0xff; + rmsg->header.len2 = 0xff; + rmsg->header.len3 = remain_len - 512; + rmsg->header.len4 = 0x00; + rmsg->header.len5 = 0x00; + bytes_xfer = remain_len; + remain_len = 0; + } else if (remain_len <= 1022) { + len1 = 512; + len2 = remain_len - 512; + rmsg->header.len0 = 0x02; + rmsg->header.len1 = 0xff; + rmsg->header.len2 = 0xff; + rmsg->header.len3 = remain_len - 767; + rmsg->header.len4 = 0xff; + rmsg->header.len5 = 0x00; + remain_len = 0; + } else if (remain_len <= 1024) { + len1 = 512; + len2 = remain_len - 512; + rmsg->header.len0 = 0x02; + rmsg->header.len1 = 0xff; + rmsg->header.len2 = 0xff; + rmsg->header.len3 = remain_len - 1022; + rmsg->header.len4 = 0xff; + rmsg->header.len5 = 0xff; + remain_len = 0; + } else { + len1 = 512; + len2 = 512; + rmsg->header.len0 = 0x02; + rmsg->header.len1 = 0xff; + rmsg->header.len2 = 0xff; + rmsg->header.len3 = 0x02; + rmsg->header.len4 = 0xff; + rmsg->header.len5 = 0xff; + remain_len -= 1024; + start += 1024; + } + rmsg->header.tf1 = cpu_to_le16(len1); + rmsg->header.tf2 = cpu_to_le16(len2); + + /* first read transfer */ + ret = vprbrd_i2c_receive(vb->usb_dev, rmsg, len1); + if (ret < 0) + return ret; + /* copy the received data */ + memcpy(msg->buf + start, rmsg, len1); + + /* second read transfer if neccessary */ + if (len2 > 0) { + ret = vprbrd_i2c_receive(vb->usb_dev, rmsg, len2); + if (ret < 0) + return ret; + /* copy the received data */ + memcpy(msg->buf + start + 512, rmsg, len2); + } + } + return 0; +} + +static int vprbrd_i2c_write(struct vprbrd *vb, struct i2c_msg *msg) +{ + int ret, bytes_actual; + u16 remain_len, bytes_xfer, + start = 0x0000; + struct vprbrd_i2c_write_msg *wmsg = + (struct vprbrd_i2c_write_msg *)vb->buf; + + remain_len = msg->len; + wmsg->header.cmd = VPRBRD_I2C_CMD_WRITE; + wmsg->header.last = 0x00; + wmsg->header.chan = 0x00; + wmsg->header.spi = 0x0000; + while (remain_len > 0) { + wmsg->header.addr = cpu_to_le16(start + 0x4000); + if (remain_len > 503) { + wmsg->header.len1 = 0xff; + wmsg->header.len2 = 0xf8; + remain_len -= 503; + bytes_xfer = 503 + sizeof(struct vprbrd_i2c_write_hdr); + start += 503; + } else if (remain_len > 255) { + wmsg->header.len1 = 0xff; + wmsg->header.len2 = (remain_len - 255); + bytes_xfer = remain_len + + sizeof(struct vprbrd_i2c_write_hdr); + remain_len = 0; + } else { + wmsg->header.len1 = remain_len; + wmsg->header.len2 = 0x00; + bytes_xfer = remain_len + + sizeof(struct vprbrd_i2c_write_hdr); + remain_len = 0; + } + memcpy(wmsg->data, msg->buf + start, + bytes_xfer - sizeof(struct vprbrd_i2c_write_hdr)); + + ret = usb_bulk_msg(vb->usb_dev, + usb_sndbulkpipe(vb->usb_dev, + VPRBRD_EP_OUT), wmsg, + bytes_xfer, &bytes_actual, VPRBRD_USB_TIMEOUT_MS); + if ((ret < 0) || (bytes_xfer != bytes_actual)) + return -EREMOTEIO; + } + return 0; +} + +static int vprbrd_i2c_xfer(struct i2c_adapter *i2c, struct i2c_msg *msgs, + int num) +{ + struct i2c_msg *pmsg; + int i, ret, + error = 0; + struct vprbrd *vb = (struct vprbrd *)i2c->algo_data; + struct vprbrd_i2c_addr_msg *amsg = + (struct vprbrd_i2c_addr_msg *)vb->buf; + struct vprbrd_i2c_status *smsg = (struct vprbrd_i2c_status *)vb->buf; + + dev_dbg(&i2c->dev, "master xfer %d messages:\n", num); + + for (i = 0 ; i < num ; i++) { + pmsg = &msgs[i]; + + dev_dbg(&i2c->dev, + " %d: %s (flags %d) %d bytes to 0x%02x\n", + i, pmsg->flags & I2C_M_RD ? "read" : "write", + pmsg->flags, pmsg->len, pmsg->addr); + + /* msgs longer than 2048 bytes are not supported by adapter */ + if (pmsg->len > 2048) + return -EINVAL; + + mutex_lock(&vb->lock); + /* directly send the message */ + if (pmsg->flags & I2C_M_RD) { + /* read data */ + amsg->cmd = VPRBRD_I2C_CMD_ADDR; + amsg->unknown2 = 0x00; + amsg->unknown3 = 0x00; + amsg->addr = pmsg->addr; + amsg->unknown1 = 0x01; + amsg->len = cpu_to_le16(pmsg->len); + /* send the addr and len, we're interested to board */ + ret = vprbrd_i2c_addr(vb->usb_dev, amsg); + if (ret < 0) + error = ret; + + ret = vprbrd_i2c_read(vb, pmsg); + if (ret < 0) + error = ret; + + ret = vprbrd_i2c_status(i2c, smsg, error); + if (ret < 0) + error = ret; + /* in case of protocol error, return the error */ + if (error < 0) + goto error; + } else { + /* write data */ + ret = vprbrd_i2c_write(vb, pmsg); + + amsg->cmd = VPRBRD_I2C_CMD_ADDR; + amsg->unknown2 = 0x00; + amsg->unknown3 = 0x00; + amsg->addr = pmsg->addr; + amsg->unknown1 = 0x00; + amsg->len = cpu_to_le16(pmsg->len); + /* send the addr, the data goes to to board */ + ret = vprbrd_i2c_addr(vb->usb_dev, amsg); + if (ret < 0) + error = ret; + + ret = vprbrd_i2c_status(i2c, smsg, error); + if (ret < 0) + error = ret; + + if (error < 0) + goto error; + } + mutex_unlock(&vb->lock); + } + return 0; +error: + mutex_unlock(&vb->lock); + return error; +} + +static u32 vprbrd_i2c_func(struct i2c_adapter *i2c) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; +} + +/* This is the actual algorithm we define */ +static const struct i2c_algorithm vprbrd_algorithm = { + .master_xfer = vprbrd_i2c_xfer, + .functionality = vprbrd_i2c_func, +}; + +static int __devinit vprbrd_i2c_probe(struct platform_device *pdev) +{ + struct vprbrd *vb = dev_get_drvdata(pdev->dev.parent); + struct vprbrd_i2c *vb_i2c; + int ret; + int pipe; + + vb_i2c = kzalloc(sizeof(*vb_i2c), GFP_KERNEL); + if (vb_i2c == NULL) + return -ENOMEM; + + /* setup i2c adapter description */ + vb_i2c->i2c.owner = THIS_MODULE; + vb_i2c->i2c.class = I2C_CLASS_HWMON; + vb_i2c->i2c.algo = &vprbrd_algorithm; + vb_i2c->i2c.algo_data = vb; + /* save the param in usb capabable memory */ + vb_i2c->bus_freq_param = i2c_bus_param; + + snprintf(vb_i2c->i2c.name, sizeof(vb_i2c->i2c.name), + "viperboard at bus %03d device %03d", + vb->usb_dev->bus->busnum, vb->usb_dev->devnum); + + /* setting the bus frequency */ + if ((i2c_bus_param <= VPRBRD_I2C_FREQ_10KHZ) + && (i2c_bus_param >= VPRBRD_I2C_FREQ_6MHZ)) { + pipe = usb_sndctrlpipe(vb->usb_dev, 0); + ret = usb_control_msg(vb->usb_dev, pipe, + VPRBRD_USB_REQUEST_I2C_FREQ, VPRBRD_USB_TYPE_OUT, + 0x0000, 0x0000, &vb_i2c->bus_freq_param, 1, + VPRBRD_USB_TIMEOUT_MS); + if (ret != 1) { + dev_err(&pdev->dev, + "failure setting i2c_bus_freq to %d\n", i2c_bus_freq); + ret = -EIO; + goto error; + } + } else { + dev_err(&pdev->dev, + "invalid i2c_bus_freq setting:%d\n", i2c_bus_freq); + ret = -EIO; + goto error; + } + + vb_i2c->i2c.dev.parent = &pdev->dev; + + /* attach to i2c layer */ + i2c_add_adapter(&vb_i2c->i2c); + + platform_set_drvdata(pdev, vb_i2c); + + return 0; + +error: + kfree(vb_i2c); + return ret; +} + +static int __devexit vprbrd_i2c_remove(struct platform_device *pdev) +{ + struct vprbrd_i2c *vb_i2c = platform_get_drvdata(pdev); + int ret; + + ret = i2c_del_adapter(&vb_i2c->i2c); + + return ret; +} + +static struct platform_driver vprbrd_i2c_driver = { + .driver.name = "viperboard-i2c", + .driver.owner = THIS_MODULE, + .probe = vprbrd_i2c_probe, + .remove = __devexit_p(vprbrd_i2c_remove), +}; + +static int __init vprbrd_i2c_init(void) +{ + switch (i2c_bus_freq) { + case 6000: + i2c_bus_param = VPRBRD_I2C_FREQ_6MHZ; + break; + case 3000: + i2c_bus_param = VPRBRD_I2C_FREQ_3MHZ; + break; + case 1000: + i2c_bus_param = VPRBRD_I2C_FREQ_1MHZ; + break; + case 400: + i2c_bus_param = VPRBRD_I2C_FREQ_400KHZ; + break; + case 200: + i2c_bus_param = VPRBRD_I2C_FREQ_200KHZ; + break; + case 100: + i2c_bus_param = VPRBRD_I2C_FREQ_100KHZ; + break; + case 10: + i2c_bus_param = VPRBRD_I2C_FREQ_10KHZ; + break; + default: + pr_warn("invalid i2c_bus_freq (%d)\n", i2c_bus_freq); + i2c_bus_param = VPRBRD_I2C_FREQ_100KHZ; + } + + return platform_driver_register(&vprbrd_i2c_driver); +} +subsys_initcall(vprbrd_i2c_init); + +static void __exit vprbrd_i2c_exit(void) +{ + platform_driver_unregister(&vprbrd_i2c_driver); +} +module_exit(vprbrd_i2c_exit); + +MODULE_AUTHOR("Lars Poeschel <poeschel@lemonage.de>"); +MODULE_DESCRIPTION("I2C master driver for Nano River Techs Viperboard"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:viperboard-i2c"); diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 961b8d0a4bac..fe822a14d130 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -125,4 +125,18 @@ config TI_ADC081C This driver can also be built as a module. If so, the module will be called ti-adc081c. +config TI_AM335X_ADC + tristate "TI's ADC driver" + depends on MFD_TI_AM335X_TSCADC + help + Say yes here to build support for Texas Instruments ADC + driver which is also a MFD client. + +config VIPERBOARD_ADC + tristate "Viperboard ADC support" + depends on MFD_VIPERBOARD && USB + help + Say yes here to access the ADC part of the Nano River + Technologies Viperboard. + endmenu diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile index 472fd7cd2417..2d5f10080d8d 100644 --- a/drivers/iio/adc/Makefile +++ b/drivers/iio/adc/Makefile @@ -13,4 +13,5 @@ obj-$(CONFIG_AT91_ADC) += at91_adc.o obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o obj-$(CONFIG_MAX1363) += max1363.o obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o - +obj-$(CONFIG_TI_AM335X_ADC) += ti_am335x_adc.o +obj-$(CONFIG_VIPERBOARD_ADC) += viperboard_adc.o diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c new file mode 100644 index 000000000000..02a43c87a8a3 --- /dev/null +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -0,0 +1,260 @@ +/* + * TI ADC MFD driver + * + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/iio/iio.h> + +#include <linux/mfd/ti_am335x_tscadc.h> +#include <linux/platform_data/ti_am335x_adc.h> + +struct tiadc_device { + struct ti_tscadc_dev *mfd_tscadc; + int channels; +}; + +static unsigned int tiadc_readl(struct tiadc_device *adc, unsigned int reg) +{ + return readl(adc->mfd_tscadc->tscadc_base + reg); +} + +static void tiadc_writel(struct tiadc_device *adc, unsigned int reg, + unsigned int val) +{ + writel(val, adc->mfd_tscadc->tscadc_base + reg); +} + +static void tiadc_step_config(struct tiadc_device *adc_dev) +{ + unsigned int stepconfig; + int i, channels = 0, steps; + + /* + * There are 16 configurable steps and 8 analog input + * lines available which are shared between Touchscreen and ADC. + * + * Steps backwards i.e. from 16 towards 0 are used by ADC + * depending on number of input lines needed. + * Channel would represent which analog input + * needs to be given to ADC to digitalize data. + */ + + steps = TOTAL_STEPS - adc_dev->channels; + channels = TOTAL_CHANNELS - adc_dev->channels; + + stepconfig = STEPCONFIG_AVG_16 | STEPCONFIG_FIFO1; + + for (i = (steps + 1); i <= TOTAL_STEPS; i++) { + tiadc_writel(adc_dev, REG_STEPCONFIG(i), + stepconfig | STEPCONFIG_INP(channels)); + tiadc_writel(adc_dev, REG_STEPDELAY(i), + STEPCONFIG_OPENDLY); + channels++; + } + tiadc_writel(adc_dev, REG_SE, STPENB_STEPENB); +} + +static int tiadc_channel_init(struct iio_dev *indio_dev, int channels) +{ + struct iio_chan_spec *chan_array; + int i; + + indio_dev->num_channels = channels; + chan_array = kcalloc(indio_dev->num_channels, + sizeof(struct iio_chan_spec), GFP_KERNEL); + + if (chan_array == NULL) + return -ENOMEM; + + for (i = 0; i < (indio_dev->num_channels); i++) { + struct iio_chan_spec *chan = chan_array + i; + chan->type = IIO_VOLTAGE; + chan->indexed = 1; + chan->channel = i; + chan->info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT; + } + + indio_dev->channels = chan_array; + + return indio_dev->num_channels; +} + +static void tiadc_channels_remove(struct iio_dev *indio_dev) +{ + kfree(indio_dev->channels); +} + +static int tiadc_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct tiadc_device *adc_dev = iio_priv(indio_dev); + int i; + unsigned int fifo1count, readx1; + + /* + * When the sub-system is first enabled, + * the sequencer will always start with the + * lowest step (1) and continue until step (16). + * For ex: If we have enabled 4 ADC channels and + * currently use only 1 out of them, the + * sequencer still configures all the 4 steps, + * leading to 3 unwanted data. + * Hence we need to flush out this data. + */ + + fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT); + for (i = 0; i < fifo1count; i++) { + readx1 = tiadc_readl(adc_dev, REG_FIFO1); + if (i == chan->channel) + *val = readx1 & 0xfff; + } + tiadc_writel(adc_dev, REG_SE, STPENB_STEPENB); + + return IIO_VAL_INT; +} + +static const struct iio_info tiadc_info = { + .read_raw = &tiadc_read_raw, +}; + +static int __devinit tiadc_probe(struct platform_device *pdev) +{ + struct iio_dev *indio_dev; + struct tiadc_device *adc_dev; + struct ti_tscadc_dev *tscadc_dev = pdev->dev.platform_data; + struct mfd_tscadc_board *pdata; + int err; + + pdata = tscadc_dev->dev->platform_data; + if (!pdata || !pdata->adc_init) { + dev_err(&pdev->dev, "Could not find platform data\n"); + return -EINVAL; + } + + indio_dev = iio_device_alloc(sizeof(struct tiadc_device)); + if (indio_dev == NULL) { + dev_err(&pdev->dev, "failed to allocate iio device\n"); + err = -ENOMEM; + goto err_ret; + } + adc_dev = iio_priv(indio_dev); + + adc_dev->mfd_tscadc = tscadc_dev; + adc_dev->channels = pdata->adc_init->adc_channels; + + indio_dev->dev.parent = &pdev->dev; + indio_dev->name = dev_name(&pdev->dev); + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->info = &tiadc_info; + + tiadc_step_config(adc_dev); + + err = tiadc_channel_init(indio_dev, adc_dev->channels); + if (err < 0) + goto err_free_device; + + err = iio_device_register(indio_dev); + if (err) + goto err_free_channels; + + platform_set_drvdata(pdev, indio_dev); + + return 0; + +err_free_channels: + tiadc_channels_remove(indio_dev); +err_free_device: + iio_device_free(indio_dev); +err_ret: + return err; +} + +static int __devexit tiadc_remove(struct platform_device *pdev) +{ + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + + iio_device_unregister(indio_dev); + tiadc_channels_remove(indio_dev); + + iio_device_free(indio_dev); + + return 0; +} + +#ifdef CONFIG_PM +static int tiadc_suspend(struct device *dev) +{ + struct iio_dev *indio_dev = dev_get_drvdata(dev); + struct tiadc_device *adc_dev = iio_priv(indio_dev); + struct ti_tscadc_dev *tscadc_dev = dev->platform_data; + unsigned int idle; + + if (!device_may_wakeup(tscadc_dev->dev)) { + idle = tiadc_readl(adc_dev, REG_CTRL); + idle &= ~(CNTRLREG_TSCSSENB); + tiadc_writel(adc_dev, REG_CTRL, (idle | + CNTRLREG_POWERDOWN)); + } + + return 0; +} + +static int tiadc_resume(struct device *dev) +{ + struct iio_dev *indio_dev = dev_get_drvdata(dev); + struct tiadc_device *adc_dev = iio_priv(indio_dev); + unsigned int restore; + + /* Make sure ADC is powered up */ + restore = tiadc_readl(adc_dev, REG_CTRL); + restore &= ~(CNTRLREG_POWERDOWN); + tiadc_writel(adc_dev, REG_CTRL, restore); + + tiadc_step_config(adc_dev); + + return 0; +} + +static const struct dev_pm_ops tiadc_pm_ops = { + .suspend = tiadc_suspend, + .resume = tiadc_resume, +}; +#define TIADC_PM_OPS (&tiadc_pm_ops) +#else +#define TIADC_PM_OPS NULL +#endif + +static struct platform_driver tiadc_driver = { + .driver = { + .name = "tiadc", + .owner = THIS_MODULE, + .pm = TIADC_PM_OPS, + }, + .probe = tiadc_probe, + .remove = __devexit_p(tiadc_remove), +}; + +module_platform_driver(tiadc_driver); + +MODULE_DESCRIPTION("TI ADC controller driver"); +MODULE_AUTHOR("Rachna Patil <rachna@ti.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/iio/adc/viperboard_adc.c b/drivers/iio/adc/viperboard_adc.c new file mode 100644 index 000000000000..10136a8b20d4 --- /dev/null +++ b/drivers/iio/adc/viperboard_adc.c @@ -0,0 +1,181 @@ +/* + * Nano River Technologies viperboard IIO ADC driver + * + * (C) 2012 by Lemonage GmbH + * Author: Lars Poeschel <poeschel@lemonage.de> + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/mutex.h> +#include <linux/platform_device.h> + +#include <linux/usb.h> +#include <linux/iio/iio.h> + +#include <linux/mfd/viperboard.h> + +#define VPRBRD_ADC_CMD_GET 0x00 + +struct vprbrd_adc_msg { + u8 cmd; + u8 chan; + u8 val; +} __packed; + +struct vprbrd_adc { + struct vprbrd *vb; +}; + +#define VPRBRD_ADC_CHANNEL(_index) { \ + .type = IIO_VOLTAGE, \ + .indexed = 1, \ + .channel = _index, \ + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT, \ + .scan_index = _index, \ + .scan_type = { \ + .sign = 'u', \ + .realbits = 8, \ + .storagebits = 8, \ + }, \ +} + +static struct iio_chan_spec const vprbrd_adc_iio_channels[] = { + VPRBRD_ADC_CHANNEL(0), + VPRBRD_ADC_CHANNEL(1), + VPRBRD_ADC_CHANNEL(2), + VPRBRD_ADC_CHANNEL(3), +}; + +static int vprbrd_iio_read_raw(struct iio_dev *iio_dev, + struct iio_chan_spec const *chan, + int *val, + int *val2, + long info) +{ + int ret, error = 0; + struct vprbrd_adc *adc = iio_priv(iio_dev); + struct vprbrd *vb = adc->vb; + struct vprbrd_adc_msg *admsg = (struct vprbrd_adc_msg *)vb->buf; + + switch (info) { + case IIO_CHAN_INFO_RAW: + mutex_lock(&vb->lock); + + admsg->cmd = VPRBRD_ADC_CMD_GET; + admsg->chan = chan->scan_index; + admsg->val = 0x00; + + ret = usb_control_msg(vb->usb_dev, + usb_sndctrlpipe(vb->usb_dev, 0), VPRBRD_USB_REQUEST_ADC, + VPRBRD_USB_TYPE_OUT, 0x0000, 0x0000, admsg, + sizeof(struct vprbrd_adc_msg), VPRBRD_USB_TIMEOUT_MS); + if (ret != sizeof(struct vprbrd_adc_msg)) { + dev_err(&iio_dev->dev, "usb send error on adc read\n"); + error = -EREMOTEIO; + } + + ret = usb_control_msg(vb->usb_dev, + usb_rcvctrlpipe(vb->usb_dev, 0), VPRBRD_USB_REQUEST_ADC, + VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, admsg, + sizeof(struct vprbrd_adc_msg), VPRBRD_USB_TIMEOUT_MS); + + *val = admsg->val; + + mutex_unlock(&vb->lock); + + if (ret != sizeof(struct vprbrd_adc_msg)) { + dev_err(&iio_dev->dev, "usb recv error on adc read\n"); + error = -EREMOTEIO; + } + + if (error) + goto error; + + return IIO_VAL_INT; + default: + error = -EINVAL; + break; + } +error: + return error; +} + +static const struct iio_info vprbrd_adc_iio_info = { + .read_raw = &vprbrd_iio_read_raw, + .driver_module = THIS_MODULE, +}; + +static int __devinit vprbrd_adc_probe(struct platform_device *pdev) +{ + struct vprbrd *vb = dev_get_drvdata(pdev->dev.parent); + struct vprbrd_adc *adc; + struct iio_dev *indio_dev; + int ret; + + /* registering iio */ + indio_dev = iio_device_alloc(sizeof(*adc)); + if (!indio_dev) { + dev_err(&pdev->dev, "failed allocating iio device\n"); + return -ENOMEM; + } + + adc = iio_priv(indio_dev); + adc->vb = vb; + indio_dev->name = "viperboard adc"; + indio_dev->dev.parent = &pdev->dev; + indio_dev->info = &vprbrd_adc_iio_info; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = vprbrd_adc_iio_channels; + indio_dev->num_channels = ARRAY_SIZE(vprbrd_adc_iio_channels); + + ret = iio_device_register(indio_dev); + if (ret) { + dev_err(&pdev->dev, "could not register iio (adc)"); + goto error; + } + + platform_set_drvdata(pdev, indio_dev); + + return 0; + +error: + iio_device_free(indio_dev); + return ret; +} + +static int __devexit vprbrd_adc_remove(struct platform_device *pdev) +{ + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + + iio_device_unregister(indio_dev); + iio_device_free(indio_dev); + + return 0; +} + +static struct platform_driver vprbrd_adc_driver = { + .driver = { + .name = "viperboard-adc", + .owner = THIS_MODULE, + }, + .probe = vprbrd_adc_probe, + .remove = __devexit_p(vprbrd_adc_remove), +}; + +module_platform_driver(vprbrd_adc_driver); + +MODULE_AUTHOR("Lars Poeschel <poeschel@lemonage.de>"); +MODULE_DESCRIPTION("IIO ADC driver for Nano River Techs Viperboard"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:viperboard-adc"); diff --git a/drivers/input/misc/da9052_onkey.c b/drivers/input/misc/da9052_onkey.c index 3c843cd725fa..3be3acc3a6eb 100644 --- a/drivers/input/misc/da9052_onkey.c +++ b/drivers/input/misc/da9052_onkey.c @@ -24,7 +24,6 @@ struct da9052_onkey { struct da9052 *da9052; struct input_dev *input; struct delayed_work work; - unsigned int irq; }; static void da9052_onkey_query(struct da9052_onkey *onkey) @@ -76,7 +75,6 @@ static int __devinit da9052_onkey_probe(struct platform_device *pdev) struct da9052 *da9052 = dev_get_drvdata(pdev->dev.parent); struct da9052_onkey *onkey; struct input_dev *input_dev; - int irq; int error; if (!da9052) { @@ -84,13 +82,6 @@ static int __devinit da9052_onkey_probe(struct platform_device *pdev) return -EINVAL; } - irq = platform_get_irq_byname(pdev, "ONKEY"); - if (irq < 0) { - dev_err(&pdev->dev, - "Failed to get an IRQ for input device, %d\n", irq); - return -EINVAL; - } - onkey = kzalloc(sizeof(*onkey), GFP_KERNEL); input_dev = input_allocate_device(); if (!onkey || !input_dev) { @@ -101,7 +92,6 @@ static int __devinit da9052_onkey_probe(struct platform_device *pdev) onkey->input = input_dev; onkey->da9052 = da9052; - onkey->irq = irq; INIT_DELAYED_WORK(&onkey->work, da9052_onkey_work); input_dev->name = "da9052-onkey"; @@ -111,13 +101,11 @@ static int __devinit da9052_onkey_probe(struct platform_device *pdev) input_dev->evbit[0] = BIT_MASK(EV_KEY); __set_bit(KEY_POWER, input_dev->keybit); - error = request_threaded_irq(onkey->irq, NULL, da9052_onkey_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "ONKEY", onkey); + error = da9052_request_irq(onkey->da9052, DA9052_IRQ_NONKEY, "ONKEY", + da9052_onkey_irq, onkey); if (error < 0) { dev_err(onkey->da9052->dev, - "Failed to register ONKEY IRQ %d, error = %d\n", - onkey->irq, error); + "Failed to register ONKEY IRQ: %d\n", error); goto err_free_mem; } @@ -132,7 +120,7 @@ static int __devinit da9052_onkey_probe(struct platform_device *pdev) return 0; err_free_irq: - free_irq(onkey->irq, onkey); + da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey); cancel_delayed_work_sync(&onkey->work); err_free_mem: input_free_device(input_dev); @@ -145,7 +133,7 @@ static int __devexit da9052_onkey_remove(struct platform_device *pdev) { struct da9052_onkey *onkey = platform_get_drvdata(pdev); - free_irq(onkey->irq, onkey); + da9052_free_irq(onkey->da9052, DA9052_IRQ_NONKEY, onkey); cancel_delayed_work_sync(&onkey->work); input_unregister_device(onkey->input); diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index f7668b24c378..0c45caddd41c 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -529,9 +529,9 @@ config TOUCHSCREEN_TOUCHWIN To compile this driver as a module, choose M here: the module will be called touchwin. -config TOUCHSCREEN_TI_TSCADC +config TOUCHSCREEN_TI_AM335X_TSC tristate "TI Touchscreen Interface" - depends on ARCH_OMAP2PLUS + depends on MFD_TI_AM335X_TSCADC help Say Y here if you have 4/5/8 wire touchscreen controller to be connected to the ADC controller on your TI AM335x SoC. @@ -539,7 +539,7 @@ config TOUCHSCREEN_TI_TSCADC If unsure, say N. To compile this driver as a module, choose M here: the - module will be called ti_tscadc. + module will be called ti_am335x_tsc. config TOUCHSCREEN_ATMEL_TSADCC tristate "Atmel Touchscreen Interface" diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 178eb128d90f..7c4c78ebe49e 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -52,7 +52,7 @@ obj-$(CONFIG_TOUCHSCREEN_PIXCIR) += pixcir_i2c_ts.o obj-$(CONFIG_TOUCHSCREEN_S3C2410) += s3c2410_ts.o obj-$(CONFIG_TOUCHSCREEN_ST1232) += st1232.o obj-$(CONFIG_TOUCHSCREEN_STMPE) += stmpe-ts.o -obj-$(CONFIG_TOUCHSCREEN_TI_TSCADC) += ti_tscadc.o +obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC) += ti_am335x_tsc.o obj-$(CONFIG_TOUCHSCREEN_TNETV107X) += tnetv107x-ts.o obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213) += touchit213.o obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o diff --git a/drivers/input/touchscreen/da9052_tsi.c b/drivers/input/touchscreen/da9052_tsi.c index e8df341090c0..53133efe0418 100644 --- a/drivers/input/touchscreen/da9052_tsi.c +++ b/drivers/input/touchscreen/da9052_tsi.c @@ -27,8 +27,6 @@ struct da9052_tsi { struct input_dev *dev; struct delayed_work ts_pen_work; struct mutex mutex; - unsigned int irq_pendwn; - unsigned int irq_datardy; bool stopped; bool adc_on; }; @@ -45,8 +43,8 @@ static irqreturn_t da9052_ts_pendwn_irq(int irq, void *data) if (!tsi->stopped) { /* Mask PEN_DOWN event and unmask TSI_READY event */ - disable_irq_nosync(tsi->irq_pendwn); - enable_irq(tsi->irq_datardy); + da9052_disable_irq_nosync(tsi->da9052, DA9052_IRQ_PENDOWN); + da9052_enable_irq(tsi->da9052, DA9052_IRQ_TSIREADY); da9052_ts_adc_toggle(tsi, true); @@ -137,8 +135,8 @@ static void da9052_ts_pen_work(struct work_struct *work) return; /* Mask TSI_READY event and unmask PEN_DOWN event */ - disable_irq(tsi->irq_datardy); - enable_irq(tsi->irq_pendwn); + da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY); + da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN); } } } @@ -197,7 +195,7 @@ static int da9052_ts_input_open(struct input_dev *input_dev) mb(); /* Unmask PEN_DOWN event */ - enable_irq(tsi->irq_pendwn); + da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN); /* Enable Pen Detect Circuit */ return da9052_reg_update(tsi->da9052, DA9052_TSI_CONT_A_REG, @@ -210,11 +208,11 @@ static void da9052_ts_input_close(struct input_dev *input_dev) tsi->stopped = true; mb(); - disable_irq(tsi->irq_pendwn); + da9052_disable_irq(tsi->da9052, DA9052_IRQ_PENDOWN); cancel_delayed_work_sync(&tsi->ts_pen_work); if (tsi->adc_on) { - disable_irq(tsi->irq_datardy); + da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY); da9052_ts_adc_toggle(tsi, false); /* @@ -222,7 +220,7 @@ static void da9052_ts_input_close(struct input_dev *input_dev) * twice and we need to enable it to keep enable/disable * counter balanced. IRQ is still off though. */ - enable_irq(tsi->irq_pendwn); + da9052_enable_irq(tsi->da9052, DA9052_IRQ_PENDOWN); } /* Disable Pen Detect Circuit */ @@ -234,21 +232,12 @@ static int __devinit da9052_ts_probe(struct platform_device *pdev) struct da9052 *da9052; struct da9052_tsi *tsi; struct input_dev *input_dev; - int irq_pendwn; - int irq_datardy; int error; da9052 = dev_get_drvdata(pdev->dev.parent); if (!da9052) return -EINVAL; - irq_pendwn = platform_get_irq_byname(pdev, "PENDWN"); - irq_datardy = platform_get_irq_byname(pdev, "TSIRDY"); - if (irq_pendwn < 0 || irq_datardy < 0) { - dev_err(da9052->dev, "Unable to determine device interrupts\n"); - return -ENXIO; - } - tsi = kzalloc(sizeof(struct da9052_tsi), GFP_KERNEL); input_dev = input_allocate_device(); if (!tsi || !input_dev) { @@ -258,8 +247,6 @@ static int __devinit da9052_ts_probe(struct platform_device *pdev) tsi->da9052 = da9052; tsi->dev = input_dev; - tsi->irq_pendwn = da9052->irq_base + irq_pendwn; - tsi->irq_datardy = da9052->irq_base + irq_datardy; tsi->stopped = true; INIT_DELAYED_WORK(&tsi->ts_pen_work, da9052_ts_pen_work); @@ -287,31 +274,25 @@ static int __devinit da9052_ts_probe(struct platform_device *pdev) /* Disable ADC */ da9052_ts_adc_toggle(tsi, false); - error = request_threaded_irq(tsi->irq_pendwn, - NULL, da9052_ts_pendwn_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "PENDWN", tsi); + error = da9052_request_irq(tsi->da9052, DA9052_IRQ_PENDOWN, + "pendown-irq", da9052_ts_pendwn_irq, tsi); if (error) { dev_err(tsi->da9052->dev, - "Failed to register PENDWN IRQ %d, error = %d\n", - tsi->irq_pendwn, error); + "Failed to register PENDWN IRQ: %d\n", error); goto err_free_mem; } - error = request_threaded_irq(tsi->irq_datardy, - NULL, da9052_ts_datardy_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "TSIRDY", tsi); + error = da9052_request_irq(tsi->da9052, DA9052_IRQ_TSIREADY, + "tsiready-irq", da9052_ts_datardy_irq, tsi); if (error) { dev_err(tsi->da9052->dev, - "Failed to register TSIRDY IRQ %d, error = %d\n", - tsi->irq_datardy, error); + "Failed to register TSIRDY IRQ :%d\n", error); goto err_free_pendwn_irq; } /* Mask PEN_DOWN and TSI_READY events */ - disable_irq(tsi->irq_pendwn); - disable_irq(tsi->irq_datardy); + da9052_disable_irq(tsi->da9052, DA9052_IRQ_PENDOWN); + da9052_disable_irq(tsi->da9052, DA9052_IRQ_TSIREADY); error = da9052_configure_tsi(tsi); if (error) @@ -326,9 +307,9 @@ static int __devinit da9052_ts_probe(struct platform_device *pdev) return 0; err_free_datardy_irq: - free_irq(tsi->irq_datardy, tsi); + da9052_free_irq(tsi->da9052, DA9052_IRQ_TSIREADY, tsi); err_free_pendwn_irq: - free_irq(tsi->irq_pendwn, tsi); + da9052_free_irq(tsi->da9052, DA9052_IRQ_PENDOWN, tsi); err_free_mem: kfree(tsi); input_free_device(input_dev); @@ -342,8 +323,8 @@ static int __devexit da9052_ts_remove(struct platform_device *pdev) da9052_reg_write(tsi->da9052, DA9052_LDO9_REG, 0x19); - free_irq(tsi->irq_pendwn, tsi); - free_irq(tsi->irq_datardy, tsi); + da9052_free_irq(tsi->da9052, DA9052_IRQ_TSIREADY, tsi); + da9052_free_irq(tsi->da9052, DA9052_IRQ_PENDOWN, tsi); input_unregister_device(tsi->dev); kfree(tsi); diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c new file mode 100644 index 000000000000..7a18a8a15228 --- /dev/null +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -0,0 +1,398 @@ +/* + * TI Touch Screen driver + * + * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + + +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/module.h> +#include <linux/input.h> +#include <linux/slab.h> +#include <linux/interrupt.h> +#include <linux/clk.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/input/ti_am335x_tsc.h> +#include <linux/delay.h> + +#include <linux/mfd/ti_am335x_tscadc.h> + +#define ADCFSM_STEPID 0x10 +#define SEQ_SETTLE 275 +#define MAX_12BIT ((1 << 12) - 1) + +struct titsc { + struct input_dev *input; + struct ti_tscadc_dev *mfd_tscadc; + unsigned int irq; + unsigned int wires; + unsigned int x_plate_resistance; + bool pen_down; + int steps_to_configure; +}; + +static unsigned int titsc_readl(struct titsc *ts, unsigned int reg) +{ + return readl(ts->mfd_tscadc->tscadc_base + reg); +} + +static void titsc_writel(struct titsc *tsc, unsigned int reg, + unsigned int val) +{ + writel(val, tsc->mfd_tscadc->tscadc_base + reg); +} + +static void titsc_step_config(struct titsc *ts_dev) +{ + unsigned int config; + int i, total_steps; + + /* Configure the Step registers */ + total_steps = 2 * ts_dev->steps_to_configure; + + config = STEPCONFIG_MODE_HWSYNC | + STEPCONFIG_AVG_16 | STEPCONFIG_XPP; + switch (ts_dev->wires) { + case 4: + config |= STEPCONFIG_INP_AN2 | STEPCONFIG_XNN; + break; + case 5: + config |= STEPCONFIG_YNN | + STEPCONFIG_INP_AN4 | STEPCONFIG_XNN | + STEPCONFIG_YPP; + break; + case 8: + config |= STEPCONFIG_INP_AN2 | STEPCONFIG_XNN; + break; + } + + for (i = 1; i <= ts_dev->steps_to_configure; i++) { + titsc_writel(ts_dev, REG_STEPCONFIG(i), config); + titsc_writel(ts_dev, REG_STEPDELAY(i), STEPCONFIG_OPENDLY); + } + + config = 0; + config = STEPCONFIG_MODE_HWSYNC | + STEPCONFIG_AVG_16 | STEPCONFIG_YNN | + STEPCONFIG_INM_ADCREFM | STEPCONFIG_FIFO1; + switch (ts_dev->wires) { + case 4: + config |= STEPCONFIG_YPP; + break; + case 5: + config |= STEPCONFIG_XPP | STEPCONFIG_INP_AN4 | + STEPCONFIG_XNP | STEPCONFIG_YPN; + break; + case 8: + config |= STEPCONFIG_YPP; + break; + } + + for (i = (ts_dev->steps_to_configure + 1); i <= total_steps; i++) { + titsc_writel(ts_dev, REG_STEPCONFIG(i), config); + titsc_writel(ts_dev, REG_STEPDELAY(i), STEPCONFIG_OPENDLY); + } + + config = 0; + /* Charge step configuration */ + config = STEPCONFIG_XPP | STEPCONFIG_YNN | + STEPCHARGE_RFP_XPUL | STEPCHARGE_RFM_XNUR | + STEPCHARGE_INM_AN1 | STEPCHARGE_INP_AN1; + + titsc_writel(ts_dev, REG_CHARGECONFIG, config); + titsc_writel(ts_dev, REG_CHARGEDELAY, CHARGEDLY_OPENDLY); + + config = 0; + /* Configure to calculate pressure */ + config = STEPCONFIG_MODE_HWSYNC | + STEPCONFIG_AVG_16 | STEPCONFIG_YPP | + STEPCONFIG_XNN | STEPCONFIG_INM_ADCREFM; + titsc_writel(ts_dev, REG_STEPCONFIG(total_steps + 1), config); + titsc_writel(ts_dev, REG_STEPDELAY(total_steps + 1), + STEPCONFIG_OPENDLY); + + config |= STEPCONFIG_INP_AN3 | STEPCONFIG_FIFO1; + titsc_writel(ts_dev, REG_STEPCONFIG(total_steps + 2), config); + titsc_writel(ts_dev, REG_STEPDELAY(total_steps + 2), + STEPCONFIG_OPENDLY); + + titsc_writel(ts_dev, REG_SE, STPENB_STEPENB_TC); +} + +static void titsc_read_coordinates(struct titsc *ts_dev, + unsigned int *x, unsigned int *y) +{ + unsigned int fifocount = titsc_readl(ts_dev, REG_FIFO0CNT); + unsigned int prev_val_x = ~0, prev_val_y = ~0; + unsigned int prev_diff_x = ~0, prev_diff_y = ~0; + unsigned int read, diff; + unsigned int i, channel; + + /* + * Delta filter is used to remove large variations in sampled + * values from ADC. The filter tries to predict where the next + * coordinate could be. This is done by taking a previous + * coordinate and subtracting it form current one. Further the + * algorithm compares the difference with that of a present value, + * if true the value is reported to the sub system. + */ + for (i = 0; i < fifocount - 1; i++) { + read = titsc_readl(ts_dev, REG_FIFO0); + channel = read & 0xf0000; + channel = channel >> 0x10; + if ((channel >= 0) && (channel < ts_dev->steps_to_configure)) { + read &= 0xfff; + diff = abs(read - prev_val_x); + if (diff < prev_diff_x) { + prev_diff_x = diff; + *x = read; + } + prev_val_x = read; + } + + read = titsc_readl(ts_dev, REG_FIFO1); + channel = read & 0xf0000; + channel = channel >> 0x10; + if ((channel >= ts_dev->steps_to_configure) && + (channel < (2 * ts_dev->steps_to_configure - 1))) { + read &= 0xfff; + diff = abs(read - prev_val_y); + if (diff < prev_diff_y) { + prev_diff_y = diff; + *y = read; + } + prev_val_y = read; + } + } +} + +static irqreturn_t titsc_irq(int irq, void *dev) +{ + struct titsc *ts_dev = dev; + struct input_dev *input_dev = ts_dev->input; + unsigned int status, irqclr = 0; + unsigned int x = 0, y = 0; + unsigned int z1, z2, z; + unsigned int fsm; + unsigned int fifo1count, fifo0count; + int i; + + status = titsc_readl(ts_dev, REG_IRQSTATUS); + if (status & IRQENB_FIFO0THRES) { + titsc_read_coordinates(ts_dev, &x, &y); + + z1 = titsc_readl(ts_dev, REG_FIFO0) & 0xfff; + z2 = titsc_readl(ts_dev, REG_FIFO1) & 0xfff; + + fifo1count = titsc_readl(ts_dev, REG_FIFO1CNT); + for (i = 0; i < fifo1count; i++) + titsc_readl(ts_dev, REG_FIFO1); + + fifo0count = titsc_readl(ts_dev, REG_FIFO0CNT); + for (i = 0; i < fifo0count; i++) + titsc_readl(ts_dev, REG_FIFO0); + + if (ts_dev->pen_down && z1 != 0 && z2 != 0) { + /* + * Calculate pressure using formula + * Resistance(touch) = x plate resistance * + * x postion/4096 * ((z2 / z1) - 1) + */ + z = z2 - z1; + z *= x; + z *= ts_dev->x_plate_resistance; + z /= z1; + z = (z + 2047) >> 12; + + if (z <= MAX_12BIT) { + input_report_abs(input_dev, ABS_X, x); + input_report_abs(input_dev, ABS_Y, y); + input_report_abs(input_dev, ABS_PRESSURE, z); + input_report_key(input_dev, BTN_TOUCH, 1); + input_sync(input_dev); + } + } + irqclr |= IRQENB_FIFO0THRES; + } + + /* + * Time for sequencer to settle, to read + * correct state of the sequencer. + */ + udelay(SEQ_SETTLE); + + status = titsc_readl(ts_dev, REG_RAWIRQSTATUS); + if (status & IRQENB_PENUP) { + /* Pen up event */ + fsm = titsc_readl(ts_dev, REG_ADCFSM); + if (fsm == ADCFSM_STEPID) { + ts_dev->pen_down = false; + input_report_key(input_dev, BTN_TOUCH, 0); + input_report_abs(input_dev, ABS_PRESSURE, 0); + input_sync(input_dev); + } else { + ts_dev->pen_down = true; + } + irqclr |= IRQENB_PENUP; + } + + titsc_writel(ts_dev, REG_IRQSTATUS, irqclr); + + titsc_writel(ts_dev, REG_SE, STPENB_STEPENB_TC); + return IRQ_HANDLED; +} + +/* + * The functions for inserting/removing driver as a module. + */ + +static int __devinit titsc_probe(struct platform_device *pdev) +{ + struct titsc *ts_dev; + struct input_dev *input_dev; + struct ti_tscadc_dev *tscadc_dev = pdev->dev.platform_data; + struct mfd_tscadc_board *pdata; + int err; + + pdata = tscadc_dev->dev->platform_data; + + if (!pdata) { + dev_err(&pdev->dev, "Could not find platform data\n"); + return -EINVAL; + } + + /* Allocate memory for device */ + ts_dev = kzalloc(sizeof(struct titsc), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!ts_dev || !input_dev) { + dev_err(&pdev->dev, "failed to allocate memory.\n"); + err = -ENOMEM; + goto err_free_mem; + } + + tscadc_dev->tsc = ts_dev; + ts_dev->mfd_tscadc = tscadc_dev; + ts_dev->input = input_dev; + ts_dev->irq = tscadc_dev->irq; + ts_dev->wires = pdata->tsc_init->wires; + ts_dev->x_plate_resistance = pdata->tsc_init->x_plate_resistance; + ts_dev->steps_to_configure = pdata->tsc_init->steps_to_configure; + + err = request_irq(ts_dev->irq, titsc_irq, + 0, pdev->dev.driver->name, ts_dev); + if (err) { + dev_err(&pdev->dev, "failed to allocate irq.\n"); + goto err_free_mem; + } + + titsc_writel(ts_dev, REG_IRQENABLE, IRQENB_FIFO0THRES); + titsc_step_config(ts_dev); + titsc_writel(ts_dev, REG_FIFO0THR, ts_dev->steps_to_configure); + + input_dev->name = "ti-tsc"; + input_dev->dev.parent = &pdev->dev; + + input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); + input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); + + input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0); + input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0); + input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT, 0, 0); + + /* register to the input system */ + err = input_register_device(input_dev); + if (err) + goto err_free_irq; + + platform_set_drvdata(pdev, ts_dev); + return 0; + +err_free_irq: + free_irq(ts_dev->irq, ts_dev); +err_free_mem: + input_free_device(input_dev); + kfree(ts_dev); + return err; +} + +static int __devexit titsc_remove(struct platform_device *pdev) +{ + struct ti_tscadc_dev *tscadc_dev = pdev->dev.platform_data; + struct titsc *ts_dev = tscadc_dev->tsc; + + free_irq(ts_dev->irq, ts_dev); + + input_unregister_device(ts_dev->input); + + platform_set_drvdata(pdev, NULL); + kfree(ts_dev); + return 0; +} + +#ifdef CONFIG_PM +static int titsc_suspend(struct device *dev) +{ + struct ti_tscadc_dev *tscadc_dev = dev->platform_data; + struct titsc *ts_dev = tscadc_dev->tsc; + unsigned int idle; + + if (device_may_wakeup(tscadc_dev->dev)) { + idle = titsc_readl(ts_dev, REG_IRQENABLE); + titsc_writel(ts_dev, REG_IRQENABLE, + (idle | IRQENB_HW_PEN)); + titsc_writel(ts_dev, REG_IRQWAKEUP, IRQWKUP_ENB); + } + return 0; +} + +static int titsc_resume(struct device *dev) +{ + struct ti_tscadc_dev *tscadc_dev = dev->platform_data; + struct titsc *ts_dev = tscadc_dev->tsc; + + if (device_may_wakeup(tscadc_dev->dev)) { + titsc_writel(ts_dev, REG_IRQWAKEUP, + 0x00); + titsc_writel(ts_dev, REG_IRQCLR, IRQENB_HW_PEN); + } + titsc_step_config(ts_dev); + titsc_writel(ts_dev, REG_FIFO0THR, + ts_dev->steps_to_configure); + return 0; +} + +static const struct dev_pm_ops titsc_pm_ops = { + .suspend = titsc_suspend, + .resume = titsc_resume, +}; +#define TITSC_PM_OPS (&titsc_pm_ops) +#else +#define TITSC_PM_OPS NULL +#endif + +static struct platform_driver ti_tsc_driver = { + .probe = titsc_probe, + .remove = __devexit_p(titsc_remove), + .driver = { + .name = "tsc", + .owner = THIS_MODULE, + .pm = TITSC_PM_OPS, + }, +}; +module_platform_driver(ti_tsc_driver); + +MODULE_DESCRIPTION("TI touchscreen controller driver"); +MODULE_AUTHOR("Rachna Patil <rachna@ti.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/input/touchscreen/ti_tscadc.c b/drivers/input/touchscreen/ti_tscadc.c deleted file mode 100644 index d229c741d544..000000000000 --- a/drivers/input/touchscreen/ti_tscadc.c +++ /dev/null @@ -1,486 +0,0 @@ -/* - * TI Touch Screen driver - * - * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/err.h> -#include <linux/module.h> -#include <linux/input.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/clk.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/input/ti_tscadc.h> -#include <linux/delay.h> - -#define REG_IRQEOI 0x020 -#define REG_RAWIRQSTATUS 0x024 -#define REG_IRQSTATUS 0x028 -#define REG_IRQENABLE 0x02C -#define REG_IRQWAKEUP 0x034 -#define REG_CTRL 0x040 -#define REG_ADCFSM 0x044 -#define REG_CLKDIV 0x04C -#define REG_SE 0x054 -#define REG_IDLECONFIG 0x058 -#define REG_CHARGECONFIG 0x05C -#define REG_CHARGEDELAY 0x060 -#define REG_STEPCONFIG(n) (0x64 + ((n - 1) * 8)) -#define REG_STEPDELAY(n) (0x68 + ((n - 1) * 8)) -#define REG_STEPCONFIG13 0x0C4 -#define REG_STEPDELAY13 0x0C8 -#define REG_STEPCONFIG14 0x0CC -#define REG_STEPDELAY14 0x0D0 -#define REG_FIFO0CNT 0xE4 -#define REG_FIFO1THR 0xF4 -#define REG_FIFO0 0x100 -#define REG_FIFO1 0x200 - -/* Register Bitfields */ -#define IRQWKUP_ENB BIT(0) -#define STPENB_STEPENB 0x7FFF -#define IRQENB_FIFO1THRES BIT(5) -#define IRQENB_PENUP BIT(9) -#define STEPCONFIG_MODE_HWSYNC 0x2 -#define STEPCONFIG_SAMPLES_AVG (1 << 4) -#define STEPCONFIG_XPP (1 << 5) -#define STEPCONFIG_XNN (1 << 6) -#define STEPCONFIG_YPP (1 << 7) -#define STEPCONFIG_YNN (1 << 8) -#define STEPCONFIG_XNP (1 << 9) -#define STEPCONFIG_YPN (1 << 10) -#define STEPCONFIG_INM (1 << 18) -#define STEPCONFIG_INP (1 << 20) -#define STEPCONFIG_INP_5 (1 << 21) -#define STEPCONFIG_FIFO1 (1 << 26) -#define STEPCONFIG_OPENDLY 0xff -#define STEPCONFIG_Z1 (3 << 19) -#define STEPIDLE_INP (1 << 22) -#define STEPCHARGE_RFP (1 << 12) -#define STEPCHARGE_INM (1 << 15) -#define STEPCHARGE_INP (1 << 19) -#define STEPCHARGE_RFM (1 << 23) -#define STEPCHARGE_DELAY 0x1 -#define CNTRLREG_TSCSSENB (1 << 0) -#define CNTRLREG_STEPID (1 << 1) -#define CNTRLREG_STEPCONFIGWRT (1 << 2) -#define CNTRLREG_4WIRE (1 << 5) -#define CNTRLREG_5WIRE (1 << 6) -#define CNTRLREG_8WIRE (3 << 5) -#define CNTRLREG_TSCENB (1 << 7) -#define ADCFSM_STEPID 0x10 - -#define SEQ_SETTLE 275 -#define ADC_CLK 3000000 -#define MAX_12BIT ((1 << 12) - 1) -#define TSCADC_DELTA_X 15 -#define TSCADC_DELTA_Y 15 - -struct tscadc { - struct input_dev *input; - struct clk *tsc_ick; - void __iomem *tsc_base; - unsigned int irq; - unsigned int wires; - unsigned int x_plate_resistance; - bool pen_down; -}; - -static unsigned int tscadc_readl(struct tscadc *ts, unsigned int reg) -{ - return readl(ts->tsc_base + reg); -} - -static void tscadc_writel(struct tscadc *tsc, unsigned int reg, - unsigned int val) -{ - writel(val, tsc->tsc_base + reg); -} - -static void tscadc_step_config(struct tscadc *ts_dev) -{ - unsigned int config; - int i; - - /* Configure the Step registers */ - - config = STEPCONFIG_MODE_HWSYNC | - STEPCONFIG_SAMPLES_AVG | STEPCONFIG_XPP; - switch (ts_dev->wires) { - case 4: - config |= STEPCONFIG_INP | STEPCONFIG_XNN; - break; - case 5: - config |= STEPCONFIG_YNN | - STEPCONFIG_INP_5 | STEPCONFIG_XNN | - STEPCONFIG_YPP; - break; - case 8: - config |= STEPCONFIG_INP | STEPCONFIG_XNN; - break; - } - - for (i = 1; i < 7; i++) { - tscadc_writel(ts_dev, REG_STEPCONFIG(i), config); - tscadc_writel(ts_dev, REG_STEPDELAY(i), STEPCONFIG_OPENDLY); - } - - config = 0; - config = STEPCONFIG_MODE_HWSYNC | - STEPCONFIG_SAMPLES_AVG | STEPCONFIG_YNN | - STEPCONFIG_INM | STEPCONFIG_FIFO1; - switch (ts_dev->wires) { - case 4: - config |= STEPCONFIG_YPP; - break; - case 5: - config |= STEPCONFIG_XPP | STEPCONFIG_INP_5 | - STEPCONFIG_XNP | STEPCONFIG_YPN; - break; - case 8: - config |= STEPCONFIG_YPP; - break; - } - - for (i = 7; i < 13; i++) { - tscadc_writel(ts_dev, REG_STEPCONFIG(i), config); - tscadc_writel(ts_dev, REG_STEPDELAY(i), STEPCONFIG_OPENDLY); - } - - config = 0; - /* Charge step configuration */ - config = STEPCONFIG_XPP | STEPCONFIG_YNN | - STEPCHARGE_RFP | STEPCHARGE_RFM | - STEPCHARGE_INM | STEPCHARGE_INP; - - tscadc_writel(ts_dev, REG_CHARGECONFIG, config); - tscadc_writel(ts_dev, REG_CHARGEDELAY, STEPCHARGE_DELAY); - - config = 0; - /* Configure to calculate pressure */ - config = STEPCONFIG_MODE_HWSYNC | - STEPCONFIG_SAMPLES_AVG | STEPCONFIG_YPP | - STEPCONFIG_XNN | STEPCONFIG_INM; - tscadc_writel(ts_dev, REG_STEPCONFIG13, config); - tscadc_writel(ts_dev, REG_STEPDELAY13, STEPCONFIG_OPENDLY); - - config |= STEPCONFIG_Z1 | STEPCONFIG_FIFO1; - tscadc_writel(ts_dev, REG_STEPCONFIG14, config); - tscadc_writel(ts_dev, REG_STEPDELAY14, STEPCONFIG_OPENDLY); - - tscadc_writel(ts_dev, REG_SE, STPENB_STEPENB); -} - -static void tscadc_idle_config(struct tscadc *ts_config) -{ - unsigned int idleconfig; - - idleconfig = STEPCONFIG_YNN | - STEPCONFIG_INM | - STEPCONFIG_YPN | STEPIDLE_INP; - tscadc_writel(ts_config, REG_IDLECONFIG, idleconfig); -} - -static void tscadc_read_coordinates(struct tscadc *ts_dev, - unsigned int *x, unsigned int *y) -{ - unsigned int fifocount = tscadc_readl(ts_dev, REG_FIFO0CNT); - unsigned int prev_val_x = ~0, prev_val_y = ~0; - unsigned int prev_diff_x = ~0, prev_diff_y = ~0; - unsigned int read, diff; - unsigned int i; - - /* - * Delta filter is used to remove large variations in sampled - * values from ADC. The filter tries to predict where the next - * coordinate could be. This is done by taking a previous - * coordinate and subtracting it form current one. Further the - * algorithm compares the difference with that of a present value, - * if true the value is reported to the sub system. - */ - for (i = 0; i < fifocount - 1; i++) { - read = tscadc_readl(ts_dev, REG_FIFO0) & 0xfff; - diff = abs(read - prev_val_x); - if (diff < prev_diff_x) { - prev_diff_x = diff; - *x = read; - } - prev_val_x = read; - - read = tscadc_readl(ts_dev, REG_FIFO1) & 0xfff; - diff = abs(read - prev_val_y); - if (diff < prev_diff_y) { - prev_diff_y = diff; - *y = read; - } - prev_val_y = read; - } -} - -static irqreturn_t tscadc_irq(int irq, void *dev) -{ - struct tscadc *ts_dev = dev; - struct input_dev *input_dev = ts_dev->input; - unsigned int status, irqclr = 0; - unsigned int x = 0, y = 0; - unsigned int z1, z2, z; - unsigned int fsm; - - status = tscadc_readl(ts_dev, REG_IRQSTATUS); - if (status & IRQENB_FIFO1THRES) { - tscadc_read_coordinates(ts_dev, &x, &y); - - z1 = tscadc_readl(ts_dev, REG_FIFO0) & 0xfff; - z2 = tscadc_readl(ts_dev, REG_FIFO1) & 0xfff; - - if (ts_dev->pen_down && z1 != 0 && z2 != 0) { - /* - * Calculate pressure using formula - * Resistance(touch) = x plate resistance * - * x postion/4096 * ((z2 / z1) - 1) - */ - z = z2 - z1; - z *= x; - z *= ts_dev->x_plate_resistance; - z /= z1; - z = (z + 2047) >> 12; - - if (z <= MAX_12BIT) { - input_report_abs(input_dev, ABS_X, x); - input_report_abs(input_dev, ABS_Y, y); - input_report_abs(input_dev, ABS_PRESSURE, z); - input_report_key(input_dev, BTN_TOUCH, 1); - input_sync(input_dev); - } - } - irqclr |= IRQENB_FIFO1THRES; - } - - /* - * Time for sequencer to settle, to read - * correct state of the sequencer. - */ - udelay(SEQ_SETTLE); - - status = tscadc_readl(ts_dev, REG_RAWIRQSTATUS); - if (status & IRQENB_PENUP) { - /* Pen up event */ - fsm = tscadc_readl(ts_dev, REG_ADCFSM); - if (fsm == ADCFSM_STEPID) { - ts_dev->pen_down = false; - input_report_key(input_dev, BTN_TOUCH, 0); - input_report_abs(input_dev, ABS_PRESSURE, 0); - input_sync(input_dev); - } else { - ts_dev->pen_down = true; - } - irqclr |= IRQENB_PENUP; - } - - tscadc_writel(ts_dev, REG_IRQSTATUS, irqclr); - /* check pending interrupts */ - tscadc_writel(ts_dev, REG_IRQEOI, 0x0); - - tscadc_writel(ts_dev, REG_SE, STPENB_STEPENB); - return IRQ_HANDLED; -} - -/* - * The functions for inserting/removing driver as a module. - */ - -static int __devinit tscadc_probe(struct platform_device *pdev) -{ - const struct tsc_data *pdata = pdev->dev.platform_data; - struct resource *res; - struct tscadc *ts_dev; - struct input_dev *input_dev; - struct clk *clk; - int err; - int clk_value, ctrl, irq; - - if (!pdata) { - dev_err(&pdev->dev, "missing platform data.\n"); - return -EINVAL; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "no memory resource defined.\n"); - return -EINVAL; - } - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "no irq ID is specified.\n"); - return -EINVAL; - } - - /* Allocate memory for device */ - ts_dev = kzalloc(sizeof(struct tscadc), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!ts_dev || !input_dev) { - dev_err(&pdev->dev, "failed to allocate memory.\n"); - err = -ENOMEM; - goto err_free_mem; - } - - ts_dev->input = input_dev; - ts_dev->irq = irq; - ts_dev->wires = pdata->wires; - ts_dev->x_plate_resistance = pdata->x_plate_resistance; - - res = request_mem_region(res->start, resource_size(res), pdev->name); - if (!res) { - dev_err(&pdev->dev, "failed to reserve registers.\n"); - err = -EBUSY; - goto err_free_mem; - } - - ts_dev->tsc_base = ioremap(res->start, resource_size(res)); - if (!ts_dev->tsc_base) { - dev_err(&pdev->dev, "failed to map registers.\n"); - err = -ENOMEM; - goto err_release_mem_region; - } - - err = request_irq(ts_dev->irq, tscadc_irq, - 0, pdev->dev.driver->name, ts_dev); - if (err) { - dev_err(&pdev->dev, "failed to allocate irq.\n"); - goto err_unmap_regs; - } - - ts_dev->tsc_ick = clk_get(&pdev->dev, "adc_tsc_ick"); - if (IS_ERR(ts_dev->tsc_ick)) { - dev_err(&pdev->dev, "failed to get TSC ick\n"); - goto err_free_irq; - } - clk_enable(ts_dev->tsc_ick); - - clk = clk_get(&pdev->dev, "adc_tsc_fck"); - if (IS_ERR(clk)) { - dev_err(&pdev->dev, "failed to get TSC fck\n"); - err = PTR_ERR(clk); - goto err_disable_clk; - } - - clk_value = clk_get_rate(clk) / ADC_CLK; - clk_put(clk); - - if (clk_value < 7) { - dev_err(&pdev->dev, "clock input less than min clock requirement\n"); - goto err_disable_clk; - } - /* CLKDIV needs to be configured to the value minus 1 */ - tscadc_writel(ts_dev, REG_CLKDIV, clk_value - 1); - - /* Enable wake-up of the SoC using touchscreen */ - tscadc_writel(ts_dev, REG_IRQWAKEUP, IRQWKUP_ENB); - - ctrl = CNTRLREG_STEPCONFIGWRT | - CNTRLREG_TSCENB | - CNTRLREG_STEPID; - switch (ts_dev->wires) { - case 4: - ctrl |= CNTRLREG_4WIRE; - break; - case 5: - ctrl |= CNTRLREG_5WIRE; - break; - case 8: - ctrl |= CNTRLREG_8WIRE; - break; - } - tscadc_writel(ts_dev, REG_CTRL, ctrl); - - tscadc_idle_config(ts_dev); - tscadc_writel(ts_dev, REG_IRQENABLE, IRQENB_FIFO1THRES); - tscadc_step_config(ts_dev); - tscadc_writel(ts_dev, REG_FIFO1THR, 6); - - ctrl |= CNTRLREG_TSCSSENB; - tscadc_writel(ts_dev, REG_CTRL, ctrl); - - input_dev->name = "ti-tsc-adc"; - input_dev->dev.parent = &pdev->dev; - - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); - input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); - - input_set_abs_params(input_dev, ABS_X, 0, MAX_12BIT, 0, 0); - input_set_abs_params(input_dev, ABS_Y, 0, MAX_12BIT, 0, 0); - input_set_abs_params(input_dev, ABS_PRESSURE, 0, MAX_12BIT, 0, 0); - - /* register to the input system */ - err = input_register_device(input_dev); - if (err) - goto err_disable_clk; - - platform_set_drvdata(pdev, ts_dev); - return 0; - -err_disable_clk: - clk_disable(ts_dev->tsc_ick); - clk_put(ts_dev->tsc_ick); -err_free_irq: - free_irq(ts_dev->irq, ts_dev); -err_unmap_regs: - iounmap(ts_dev->tsc_base); -err_release_mem_region: - release_mem_region(res->start, resource_size(res)); -err_free_mem: - input_free_device(input_dev); - kfree(ts_dev); - return err; -} - -static int __devexit tscadc_remove(struct platform_device *pdev) -{ - struct tscadc *ts_dev = platform_get_drvdata(pdev); - struct resource *res; - - free_irq(ts_dev->irq, ts_dev); - - input_unregister_device(ts_dev->input); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - iounmap(ts_dev->tsc_base); - release_mem_region(res->start, resource_size(res)); - - clk_disable(ts_dev->tsc_ick); - clk_put(ts_dev->tsc_ick); - - kfree(ts_dev); - - platform_set_drvdata(pdev, NULL); - return 0; -} - -static struct platform_driver ti_tsc_driver = { - .probe = tscadc_probe, - .remove = __devexit_p(tscadc_remove), - .driver = { - .name = "tsc", - .owner = THIS_MODULE, - }, -}; -module_platform_driver(ti_tsc_driver); - -MODULE_DESCRIPTION("TI touchscreen controller driver"); -MODULE_AUTHOR("Rachna Patil <rachna@ti.com>"); -MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index b63987c6ed20..1c0abd4dfc43 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -104,6 +104,17 @@ config MFD_TI_SSP To compile this driver as a module, choose M here: the module will be called ti-ssp. +config MFD_TI_AM335X_TSCADC + tristate "TI ADC / Touch Screen chip support" + select MFD_CORE + select REGMAP + select REGMAP_MMIO + help + If you say yes here you get support for Texas Instruments series + of Touch Screen /ADC chips. + To compile this driver as a module, choose M here: the + module will be called ti_am335x_tscadc. + config HTC_EGPIO bool "HTC EGPIO support" depends on GENERIC_HARDIRQS && GPIOLIB && ARM @@ -253,6 +264,20 @@ config MFD_TPS65912_SPI If you say yes here you get support for the TPS65912 series of PM chips with SPI interface. +config MFD_TPS80031 + bool "TI TPS80031/TPS80032 Power Management chips" + depends on I2C=y && GENERIC_HARDIRQS + select MFD_CORE + select REGMAP_I2C + select REGMAP_IRQ + help + If you say yes here you get support for the Texas Instruments + TPS80031/ TPS80032 Fully Integrated Power Management with Power + Path and Battery Charger. The device provides five configurable + step-down converters, 11 general purpose LDOs, USB OTG Module, + ADC, RTC, 2 PWM, System Voltage Regulator/Battery Charger with + Power Path from USB, 32K clock generator. + config MENELAUS bool "Texas Instruments TWL92330/Menelaus PM chip" depends on I2C=y && ARCH_OMAP2 @@ -309,10 +334,10 @@ config MFD_TWL4030_AUDIO config TWL6040_CORE bool "Support for TWL6040 audio codec" - depends on I2C=y && GENERIC_HARDIRQS + depends on I2C=y select MFD_CORE select REGMAP_I2C - select IRQ_DOMAIN + select REGMAP_IRQ default n help Say yes here if you want support for Texas Instruments TWL6040 audio @@ -990,6 +1015,7 @@ config MFD_TPS65090 depends on I2C=y && GENERIC_HARDIRQS select MFD_CORE select REGMAP_I2C + select REGMAP_IRQ help If you say yes here you get support for the TPS65090 series of Power Management chips. @@ -1034,6 +1060,7 @@ config MFD_STA2X11 bool "STA2X11 multi function device support" depends on STA2X11 select MFD_CORE + select REGMAP_MMIO config MFD_SYSCON bool "System Controller Register R/W Based on Regmap" @@ -1053,6 +1080,38 @@ config MFD_PALMAS If you say yes here you get support for the Palmas series of PMIC chips from Texas Instruments. +config MFD_VIPERBOARD + tristate "Support for Nano River Technologies Viperboard" + select MFD_CORE + depends on USB + default n + help + Say yes here if you want support for Nano River Technologies + Viperboard. + There are mfd cell drivers available for i2c master, adc and + both gpios found on the board. The spi part does not yet + have a driver. + You need to select the mfd cell drivers separately. + The drivers do not support all features the board exposes. + +config MFD_RETU + tristate "Support for Retu multi-function device" + select MFD_CORE + depends on I2C + select REGMAP_IRQ + help + Retu is a multi-function device found on Nokia Internet Tablets + (770, N800 and N810). + +config MFD_AS3711 + bool "Support for AS3711" + select MFD_CORE + select REGMAP_I2C + select REGMAP_IRQ + depends on I2C=y + help + Support for the AS3711 PMIC from AMS + endmenu endif diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 69f260ae0225..8b977f8045ae 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -19,6 +19,7 @@ obj-$(CONFIG_HTC_I2CPLD) += htc-i2cpld.o obj-$(CONFIG_MFD_DAVINCI_VOICECODEC) += davinci_voicecodec.o obj-$(CONFIG_MFD_DM355EVM_MSP) += dm355evm_msp.o obj-$(CONFIG_MFD_TI_SSP) += ti-ssp.o +obj-$(CONFIG_MFD_TI_AM335X_TSCADC) += ti_am335x_tscadc.o obj-$(CONFIG_MFD_STA2X11) += sta2x11-mfd.o obj-$(CONFIG_MFD_STMPE) += stmpe.o @@ -55,18 +56,19 @@ obj-$(CONFIG_TPS6105X) += tps6105x.o obj-$(CONFIG_TPS65010) += tps65010.o obj-$(CONFIG_TPS6507X) += tps6507x.o obj-$(CONFIG_MFD_TPS65217) += tps65217.o -obj-$(CONFIG_MFD_TPS65910) += tps65910.o tps65910-irq.o +obj-$(CONFIG_MFD_TPS65910) += tps65910.o tps65912-objs := tps65912-core.o tps65912-irq.o obj-$(CONFIG_MFD_TPS65912) += tps65912.o obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o obj-$(CONFIG_MFD_TPS65912_SPI) += tps65912-spi.o +obj-$(CONFIG_MFD_TPS80031) += tps80031.o obj-$(CONFIG_MENELAUS) += menelaus.o obj-$(CONFIG_TWL4030_CORE) += twl-core.o twl4030-irq.o twl6030-irq.o obj-$(CONFIG_TWL4030_MADC) += twl4030-madc.o obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o obj-$(CONFIG_MFD_TWL4030_AUDIO) += twl4030-audio.o -obj-$(CONFIG_TWL6040_CORE) += twl6040-core.o twl6040-irq.o +obj-$(CONFIG_TWL6040_CORE) += twl6040.o obj-$(CONFIG_MFD_MC13XXX) += mc13xxx-core.o obj-$(CONFIG_MFD_MC13XXX_SPI) += mc13xxx-spi.o @@ -89,6 +91,7 @@ obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o obj-$(CONFIG_PMIC_DA903X) += da903x.o +obj-$(CONFIG_PMIC_DA9052) += da9052-irq.o obj-$(CONFIG_PMIC_DA9052) += da9052-core.o obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o @@ -137,8 +140,11 @@ obj-$(CONFIG_MFD_TPS65090) += tps65090.o obj-$(CONFIG_MFD_AAT2870_CORE) += aat2870-core.o obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o obj-$(CONFIG_MFD_PALMAS) += palmas.o +obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o obj-$(CONFIG_MFD_SYSCON) += syscon.o obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o obj-$(CONFIG_VEXPRESS_CONFIG) += vexpress-config.o vexpress-sysreg.o +obj-$(CONFIG_MFD_RETU) += retu-mfd.o +obj-$(CONFIG_MFD_AS3711) += as3711.o diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c index 59da1650fb81..e1650badd106 100644 --- a/drivers/mfd/ab8500-core.c +++ b/drivers/mfd/ab8500-core.c @@ -586,38 +586,6 @@ int ab8500_suspend(struct ab8500 *ab8500) return 0; } -/* AB8500 GPIO Resources */ -static struct resource __devinitdata ab8500_gpio_resources[] = { - { - .name = "GPIO_INT6", - .start = AB8500_INT_GPIO6R, - .end = AB8500_INT_GPIO41F, - .flags = IORESOURCE_IRQ, - } -}; - -/* AB9540 GPIO Resources */ -static struct resource __devinitdata ab9540_gpio_resources[] = { - { - .name = "GPIO_INT6", - .start = AB8500_INT_GPIO6R, - .end = AB8500_INT_GPIO41F, - .flags = IORESOURCE_IRQ, - }, - { - .name = "GPIO_INT14", - .start = AB9540_INT_GPIO50R, - .end = AB9540_INT_GPIO54R, - .flags = IORESOURCE_IRQ, - }, - { - .name = "GPIO_INT15", - .start = AB9540_INT_GPIO50F, - .end = AB9540_INT_GPIO54F, - .flags = IORESOURCE_IRQ, - } -}; - static struct resource ab8500_gpadc_resources[] = { { .name = "HW_CONV_END", @@ -979,6 +947,10 @@ static struct mfd_cell abx500_common_devs[] = { .of_compatible = "stericsson,ab8500-regulator", }, { + .name = "abx500-clk", + .of_compatible = "stericsson,abx500-clk", + }, + { .name = "ab8500-gpadc", .of_compatible = "stericsson,ab8500-gpadc", .num_resources = ARRAY_SIZE(ab8500_gpadc_resources), @@ -1080,8 +1052,6 @@ static struct mfd_cell ab8500_devs[] = { { .name = "ab8500-gpio", .of_compatible = "stericsson,ab8500-gpio", - .num_resources = ARRAY_SIZE(ab8500_gpio_resources), - .resources = ab8500_gpio_resources, }, { .name = "ab8500-usb", @@ -1098,8 +1068,6 @@ static struct mfd_cell ab8500_devs[] = { static struct mfd_cell ab9540_devs[] = { { .name = "ab8500-gpio", - .num_resources = ARRAY_SIZE(ab9540_gpio_resources), - .resources = ab9540_gpio_resources, }, { .name = "ab9540-usb", @@ -1284,7 +1252,7 @@ static int ab8500_probe(struct platform_device *pdev) int i; u8 value; - ab8500 = kzalloc(sizeof *ab8500, GFP_KERNEL); + ab8500 = devm_kzalloc(&pdev->dev, sizeof *ab8500, GFP_KERNEL); if (!ab8500) return -ENOMEM; @@ -1294,10 +1262,8 @@ static int ab8500_probe(struct platform_device *pdev) ab8500->dev = &pdev->dev; resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!resource) { - ret = -ENODEV; - goto out_free_ab8500; - } + if (!resource) + return -ENODEV; ab8500->irq = resource->start; @@ -1320,7 +1286,7 @@ static int ab8500_probe(struct platform_device *pdev) ret = get_register_interruptible(ab8500, AB8500_MISC, AB8500_IC_NAME_REG, &value); if (ret < 0) - goto out_free_ab8500; + return ret; ab8500->version = value; } @@ -1328,7 +1294,7 @@ static int ab8500_probe(struct platform_device *pdev) ret = get_register_interruptible(ab8500, AB8500_MISC, AB8500_REV_REG, &value); if (ret < 0) - goto out_free_ab8500; + return ret; ab8500->chip_id = value; @@ -1345,14 +1311,13 @@ static int ab8500_probe(struct platform_device *pdev) ab8500->mask_size = AB8500_NUM_IRQ_REGS; ab8500->irq_reg_offset = ab8500_irq_regoffset; } - ab8500->mask = kzalloc(ab8500->mask_size, GFP_KERNEL); + ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL); if (!ab8500->mask) return -ENOMEM; - ab8500->oldmask = kzalloc(ab8500->mask_size, GFP_KERNEL); - if (!ab8500->oldmask) { - ret = -ENOMEM; - goto out_freemask; - } + ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL); + if (!ab8500->oldmask) + return -ENOMEM; + /* * ab8500 has switched off due to (SWITCH_OFF_STATUS): * 0x01 Swoff bit programming @@ -1406,37 +1371,37 @@ static int ab8500_probe(struct platform_device *pdev) ret = abx500_register_ops(ab8500->dev, &ab8500_ops); if (ret) - goto out_freeoldmask; + return ret; for (i = 0; i < ab8500->mask_size; i++) ab8500->mask[i] = ab8500->oldmask[i] = 0xff; ret = ab8500_irq_init(ab8500, np); if (ret) - goto out_freeoldmask; + return ret; /* Activate this feature only in ab9540 */ /* till tests are done on ab8500 1p2 or later*/ if (is_ab9540(ab8500)) { - ret = request_threaded_irq(ab8500->irq, NULL, - ab8500_hierarchical_irq, - IRQF_ONESHOT | IRQF_NO_SUSPEND, - "ab8500", ab8500); + ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, + ab8500_hierarchical_irq, + IRQF_ONESHOT | IRQF_NO_SUSPEND, + "ab8500", ab8500); } else { - ret = request_threaded_irq(ab8500->irq, NULL, - ab8500_irq, - IRQF_ONESHOT | IRQF_NO_SUSPEND, - "ab8500", ab8500); + ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, + ab8500_irq, + IRQF_ONESHOT | IRQF_NO_SUSPEND, + "ab8500", ab8500); if (ret) - goto out_freeoldmask; + return ret; } ret = mfd_add_devices(ab8500->dev, 0, abx500_common_devs, ARRAY_SIZE(abx500_common_devs), NULL, ab8500->irq_base, ab8500->domain); if (ret) - goto out_freeirq; + return ret; if (is_ab9540(ab8500)) ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs, @@ -1447,14 +1412,14 @@ static int ab8500_probe(struct platform_device *pdev) ARRAY_SIZE(ab8500_devs), NULL, ab8500->irq_base, ab8500->domain); if (ret) - goto out_freeirq; + return ret; if (is_ab9540(ab8500) || is_ab8505(ab8500)) ret = mfd_add_devices(ab8500->dev, 0, ab9540_ab8505_devs, ARRAY_SIZE(ab9540_ab8505_devs), NULL, ab8500->irq_base, ab8500->domain); if (ret) - goto out_freeirq; + return ret; if (!no_bm) { /* Add battery management devices */ @@ -1475,17 +1440,6 @@ static int ab8500_probe(struct platform_device *pdev) dev_err(ab8500->dev, "error creating sysfs entries\n"); return ret; - -out_freeirq: - free_irq(ab8500->irq, ab8500); -out_freeoldmask: - kfree(ab8500->oldmask); -out_freemask: - kfree(ab8500->mask); -out_free_ab8500: - kfree(ab8500); - - return ret; } static int ab8500_remove(struct platform_device *pdev) @@ -1498,11 +1452,6 @@ static int ab8500_remove(struct platform_device *pdev) sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group); mfd_remove_devices(ab8500->dev); - free_irq(ab8500->irq, ab8500); - - kfree(ab8500->oldmask); - kfree(ab8500->mask); - kfree(ab8500); return 0; } diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index c784f4602a74..bc8a3edb6bbf 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -292,6 +292,7 @@ int arizona_dev_init(struct arizona *arizona) struct device *dev = arizona->dev; const char *type_name; unsigned int reg, val; + int (*apply_patch)(struct arizona *) = NULL; int ret, i; dev_set_drvdata(arizona->dev, arizona); @@ -391,7 +392,7 @@ int arizona_dev_init(struct arizona *arizona) arizona->type); arizona->type = WM5102; } - ret = wm5102_patch(arizona); + apply_patch = wm5102_patch; break; #endif #ifdef CONFIG_MFD_WM5110 @@ -402,7 +403,7 @@ int arizona_dev_init(struct arizona *arizona) arizona->type); arizona->type = WM5110; } - ret = wm5110_patch(arizona); + apply_patch = wm5110_patch; break; #endif default: @@ -412,9 +413,6 @@ int arizona_dev_init(struct arizona *arizona) dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A'); - if (ret != 0) - dev_err(arizona->dev, "Failed to apply patch: %d\n", ret); - /* If we have a /RESET GPIO we'll already be reset */ if (!arizona->pdata.reset) { regcache_mark_dirty(arizona->regmap); @@ -438,6 +436,15 @@ int arizona_dev_init(struct arizona *arizona) goto err_reset; } + if (apply_patch) { + ret = apply_patch(arizona); + if (ret != 0) { + dev_err(arizona->dev, "Failed to apply patch: %d\n", + ret); + goto err_reset; + } + } + for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) { if (!arizona->pdata.gpio_defaults[i]) continue; diff --git a/drivers/mfd/arizona-irq.c b/drivers/mfd/arizona-irq.c index b1b009177405..74713bf5371f 100644 --- a/drivers/mfd/arizona-irq.c +++ b/drivers/mfd/arizona-irq.c @@ -224,6 +224,7 @@ int arizona_irq_init(struct arizona *arizona) arizona->virq = irq_domain_add_linear(NULL, 2, &arizona_domain_ops, arizona); if (!arizona->virq) { + dev_err(arizona->dev, "Failed to add core IRQ domain\n"); ret = -EINVAL; goto err; } diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c new file mode 100644 index 000000000000..e994c9691124 --- /dev/null +++ b/drivers/mfd/as3711.c @@ -0,0 +1,217 @@ +/* + * AS3711 PMIC MFC driver + * + * Copyright (C) 2012 Renesas Electronics Corporation + * Author: Guennadi Liakhovetski, <g.liakhovetski@gmx.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the version 2 of the GNU General Public License as + * published by the Free Software Foundation + */ + +#include <linux/device.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/mfd/as3711.h> +#include <linux/mfd/core.h> +#include <linux/module.h> +#include <linux/regmap.h> +#include <linux/slab.h> + +enum { + AS3711_REGULATOR, + AS3711_BACKLIGHT, +}; + +/* + * Ok to have it static: it is only used during probing and multiple I2C devices + * cannot be probed simultaneously. Just make sure to avoid stale data. + */ +static struct mfd_cell as3711_subdevs[] = { + [AS3711_REGULATOR] = {.name = "as3711-regulator",}, + [AS3711_BACKLIGHT] = {.name = "as3711-backlight",}, +}; + +static bool as3711_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AS3711_GPIO_SIGNAL_IN: + case AS3711_INTERRUPT_STATUS_1: + case AS3711_INTERRUPT_STATUS_2: + case AS3711_INTERRUPT_STATUS_3: + case AS3711_CHARGER_STATUS_1: + case AS3711_CHARGER_STATUS_2: + case AS3711_REG_STATUS: + return true; + } + return false; +} + +static bool as3711_precious_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AS3711_INTERRUPT_STATUS_1: + case AS3711_INTERRUPT_STATUS_2: + case AS3711_INTERRUPT_STATUS_3: + return true; + } + return false; +} + +static bool as3711_readable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AS3711_SD_1_VOLTAGE: + case AS3711_SD_2_VOLTAGE: + case AS3711_SD_3_VOLTAGE: + case AS3711_SD_4_VOLTAGE: + case AS3711_LDO_1_VOLTAGE: + case AS3711_LDO_2_VOLTAGE: + case AS3711_LDO_3_VOLTAGE: + case AS3711_LDO_4_VOLTAGE: + case AS3711_LDO_5_VOLTAGE: + case AS3711_LDO_6_VOLTAGE: + case AS3711_LDO_7_VOLTAGE: + case AS3711_LDO_8_VOLTAGE: + case AS3711_SD_CONTROL: + case AS3711_GPIO_SIGNAL_OUT: + case AS3711_GPIO_SIGNAL_IN: + case AS3711_SD_CONTROL_1: + case AS3711_SD_CONTROL_2: + case AS3711_CURR_CONTROL: + case AS3711_CURR1_VALUE: + case AS3711_CURR2_VALUE: + case AS3711_CURR3_VALUE: + case AS3711_STEPUP_CONTROL_1: + case AS3711_STEPUP_CONTROL_2: + case AS3711_STEPUP_CONTROL_4: + case AS3711_STEPUP_CONTROL_5: + case AS3711_REG_STATUS: + case AS3711_INTERRUPT_STATUS_1: + case AS3711_INTERRUPT_STATUS_2: + case AS3711_INTERRUPT_STATUS_3: + case AS3711_CHARGER_STATUS_1: + case AS3711_CHARGER_STATUS_2: + case AS3711_ASIC_ID_1: + case AS3711_ASIC_ID_2: + return true; + } + return false; +} + +static const struct regmap_config as3711_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .volatile_reg = as3711_volatile_reg, + .readable_reg = as3711_readable_reg, + .precious_reg = as3711_precious_reg, + .max_register = AS3711_MAX_REGS, + .num_reg_defaults_raw = AS3711_MAX_REGS, + .cache_type = REGCACHE_RBTREE, +}; + +static int as3711_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct as3711 *as3711; + struct as3711_platform_data *pdata = client->dev.platform_data; + unsigned int id1, id2; + int ret; + + if (!pdata) + dev_dbg(&client->dev, "Platform data not found\n"); + + as3711 = devm_kzalloc(&client->dev, sizeof(struct as3711), GFP_KERNEL); + if (!as3711) { + dev_err(&client->dev, "Memory allocation failed\n"); + return -ENOMEM; + } + + as3711->dev = &client->dev; + i2c_set_clientdata(client, as3711); + + if (client->irq) + dev_notice(&client->dev, "IRQ not supported yet\n"); + + as3711->regmap = devm_regmap_init_i2c(client, &as3711_regmap_config); + if (IS_ERR(as3711->regmap)) { + ret = PTR_ERR(as3711->regmap); + dev_err(&client->dev, "regmap initialization failed: %d\n", ret); + return ret; + } + + ret = regmap_read(as3711->regmap, AS3711_ASIC_ID_1, &id1); + if (!ret) + ret = regmap_read(as3711->regmap, AS3711_ASIC_ID_2, &id2); + if (ret < 0) { + dev_err(&client->dev, "regmap_read() failed: %d\n", ret); + return ret; + } + if (id1 != 0x8b) + return -ENODEV; + dev_info(as3711->dev, "AS3711 detected: %x:%x\n", id1, id2); + + /* We can reuse as3711_subdevs[], it will be copied in mfd_add_devices() */ + if (pdata) { + as3711_subdevs[AS3711_REGULATOR].platform_data = &pdata->regulator; + as3711_subdevs[AS3711_REGULATOR].pdata_size = sizeof(pdata->regulator); + as3711_subdevs[AS3711_BACKLIGHT].platform_data = &pdata->backlight; + as3711_subdevs[AS3711_BACKLIGHT].pdata_size = sizeof(pdata->backlight); + } else { + as3711_subdevs[AS3711_REGULATOR].platform_data = NULL; + as3711_subdevs[AS3711_REGULATOR].pdata_size = 0; + as3711_subdevs[AS3711_BACKLIGHT].platform_data = NULL; + as3711_subdevs[AS3711_BACKLIGHT].pdata_size = 0; + } + + ret = mfd_add_devices(as3711->dev, -1, as3711_subdevs, + ARRAY_SIZE(as3711_subdevs), NULL, 0, NULL); + if (ret < 0) + dev_err(&client->dev, "add mfd devices failed: %d\n", ret); + + return ret; +} + +static int as3711_i2c_remove(struct i2c_client *client) +{ + struct as3711 *as3711 = i2c_get_clientdata(client); + + mfd_remove_devices(as3711->dev); + return 0; +} + +static const struct i2c_device_id as3711_i2c_id[] = { + {.name = "as3711", .driver_data = 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, as3711_i2c_id); + +static struct i2c_driver as3711_i2c_driver = { + .driver = { + .name = "as3711", + .owner = THIS_MODULE, + }, + .probe = as3711_i2c_probe, + .remove = as3711_i2c_remove, + .id_table = as3711_i2c_id, +}; + +static int __init as3711_i2c_init(void) +{ + return i2c_add_driver(&as3711_i2c_driver); +} +/* Initialise early */ +subsys_initcall(as3711_i2c_init); + +static void __exit as3711_i2c_exit(void) +{ + i2c_del_driver(&as3711_i2c_driver); +} +module_exit(as3711_i2c_exit); + +MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>"); +MODULE_DESCRIPTION("AS3711 PMIC driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c index 689b747416af..a3c9613f9166 100644 --- a/drivers/mfd/da9052-core.c +++ b/drivers/mfd/da9052-core.c @@ -15,7 +15,6 @@ #include <linux/delay.h> #include <linux/input.h> #include <linux/interrupt.h> -#include <linux/irq.h> #include <linux/mfd/core.h> #include <linux/slab.h> #include <linux/module.h> @@ -24,16 +23,6 @@ #include <linux/mfd/da9052/pdata.h> #include <linux/mfd/da9052/reg.h> -#define DA9052_NUM_IRQ_REGS 4 -#define DA9052_IRQ_MASK_POS_1 0x01 -#define DA9052_IRQ_MASK_POS_2 0x02 -#define DA9052_IRQ_MASK_POS_3 0x04 -#define DA9052_IRQ_MASK_POS_4 0x08 -#define DA9052_IRQ_MASK_POS_5 0x10 -#define DA9052_IRQ_MASK_POS_6 0x20 -#define DA9052_IRQ_MASK_POS_7 0x40 -#define DA9052_IRQ_MASK_POS_8 0x80 - static bool da9052_reg_readable(struct device *dev, unsigned int reg) { switch (reg) { @@ -425,15 +414,6 @@ err: } EXPORT_SYMBOL_GPL(da9052_adc_manual_read); -static irqreturn_t da9052_auxadc_irq(int irq, void *irq_data) -{ - struct da9052 *da9052 = irq_data; - - complete(&da9052->done); - - return IRQ_HANDLED; -} - int da9052_adc_read_temp(struct da9052 *da9052) { int tbat; @@ -447,74 +427,6 @@ int da9052_adc_read_temp(struct da9052 *da9052) } EXPORT_SYMBOL_GPL(da9052_adc_read_temp); -static struct resource da9052_rtc_resource = { - .name = "ALM", - .start = DA9052_IRQ_ALARM, - .end = DA9052_IRQ_ALARM, - .flags = IORESOURCE_IRQ, -}; - -static struct resource da9052_onkey_resource = { - .name = "ONKEY", - .start = DA9052_IRQ_NONKEY, - .end = DA9052_IRQ_NONKEY, - .flags = IORESOURCE_IRQ, -}; - -static struct resource da9052_bat_resources[] = { - { - .name = "BATT TEMP", - .start = DA9052_IRQ_TBAT, - .end = DA9052_IRQ_TBAT, - .flags = IORESOURCE_IRQ, - }, - { - .name = "DCIN DET", - .start = DA9052_IRQ_DCIN, - .end = DA9052_IRQ_DCIN, - .flags = IORESOURCE_IRQ, - }, - { - .name = "DCIN REM", - .start = DA9052_IRQ_DCINREM, - .end = DA9052_IRQ_DCINREM, - .flags = IORESOURCE_IRQ, - }, - { - .name = "VBUS DET", - .start = DA9052_IRQ_VBUS, - .end = DA9052_IRQ_VBUS, - .flags = IORESOURCE_IRQ, - }, - { - .name = "VBUS REM", - .start = DA9052_IRQ_VBUSREM, - .end = DA9052_IRQ_VBUSREM, - .flags = IORESOURCE_IRQ, - }, - { - .name = "CHG END", - .start = DA9052_IRQ_CHGEND, - .end = DA9052_IRQ_CHGEND, - .flags = IORESOURCE_IRQ, - }, -}; - -static struct resource da9052_tsi_resources[] = { - { - .name = "PENDWN", - .start = DA9052_IRQ_PENDOWN, - .end = DA9052_IRQ_PENDOWN, - .flags = IORESOURCE_IRQ, - }, - { - .name = "TSIRDY", - .start = DA9052_IRQ_TSIREADY, - .end = DA9052_IRQ_TSIREADY, - .flags = IORESOURCE_IRQ, - }, -}; - static struct mfd_cell da9052_subdev_info[] = { { .name = "da9052-regulator", @@ -574,13 +486,9 @@ static struct mfd_cell da9052_subdev_info[] = { }, { .name = "da9052-onkey", - .resources = &da9052_onkey_resource, - .num_resources = 1, }, { .name = "da9052-rtc", - .resources = &da9052_rtc_resource, - .num_resources = 1, }, { .name = "da9052-gpio", @@ -602,160 +510,15 @@ static struct mfd_cell da9052_subdev_info[] = { }, { .name = "da9052-tsi", - .resources = da9052_tsi_resources, - .num_resources = ARRAY_SIZE(da9052_tsi_resources), }, { .name = "da9052-bat", - .resources = da9052_bat_resources, - .num_resources = ARRAY_SIZE(da9052_bat_resources), }, { .name = "da9052-watchdog", }, }; -static struct regmap_irq da9052_irqs[] = { - [DA9052_IRQ_DCIN] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_1, - }, - [DA9052_IRQ_VBUS] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_2, - }, - [DA9052_IRQ_DCINREM] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_3, - }, - [DA9052_IRQ_VBUSREM] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_4, - }, - [DA9052_IRQ_VDDLOW] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_5, - }, - [DA9052_IRQ_ALARM] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_6, - }, - [DA9052_IRQ_SEQRDY] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_7, - }, - [DA9052_IRQ_COMP1V2] = { - .reg_offset = 0, - .mask = DA9052_IRQ_MASK_POS_8, - }, - [DA9052_IRQ_NONKEY] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_1, - }, - [DA9052_IRQ_IDFLOAT] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_2, - }, - [DA9052_IRQ_IDGND] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_3, - }, - [DA9052_IRQ_CHGEND] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_4, - }, - [DA9052_IRQ_TBAT] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_5, - }, - [DA9052_IRQ_ADC_EOM] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_6, - }, - [DA9052_IRQ_PENDOWN] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_7, - }, - [DA9052_IRQ_TSIREADY] = { - .reg_offset = 1, - .mask = DA9052_IRQ_MASK_POS_8, - }, - [DA9052_IRQ_GPI0] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_1, - }, - [DA9052_IRQ_GPI1] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_2, - }, - [DA9052_IRQ_GPI2] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_3, - }, - [DA9052_IRQ_GPI3] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_4, - }, - [DA9052_IRQ_GPI4] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_5, - }, - [DA9052_IRQ_GPI5] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_6, - }, - [DA9052_IRQ_GPI6] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_7, - }, - [DA9052_IRQ_GPI7] = { - .reg_offset = 2, - .mask = DA9052_IRQ_MASK_POS_8, - }, - [DA9052_IRQ_GPI8] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_1, - }, - [DA9052_IRQ_GPI9] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_2, - }, - [DA9052_IRQ_GPI10] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_3, - }, - [DA9052_IRQ_GPI11] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_4, - }, - [DA9052_IRQ_GPI12] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_5, - }, - [DA9052_IRQ_GPI13] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_6, - }, - [DA9052_IRQ_GPI14] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_7, - }, - [DA9052_IRQ_GPI15] = { - .reg_offset = 3, - .mask = DA9052_IRQ_MASK_POS_8, - }, -}; - -static struct regmap_irq_chip da9052_regmap_irq_chip = { - .name = "da9052_irq", - .status_base = DA9052_EVENT_A_REG, - .mask_base = DA9052_IRQ_MASK_A_REG, - .ack_base = DA9052_EVENT_A_REG, - .num_regs = DA9052_NUM_IRQ_REGS, - .irqs = da9052_irqs, - .num_irqs = ARRAY_SIZE(da9052_irqs), -}; - struct regmap_config da9052_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -782,45 +545,31 @@ int da9052_device_init(struct da9052 *da9052, u8 chip_id) da9052->chip_id = chip_id; - if (!pdata || !pdata->irq_base) - da9052->irq_base = -1; - else - da9052->irq_base = pdata->irq_base; - - ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - da9052->irq_base, &da9052_regmap_irq_chip, - &da9052->irq_data); - if (ret < 0) - goto regmap_err; - - da9052->irq_base = regmap_irq_chip_get_base(da9052->irq_data); - - ret = request_threaded_irq(DA9052_IRQ_ADC_EOM, NULL, da9052_auxadc_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - "adc irq", da9052); - if (ret != 0) - dev_err(da9052->dev, "DA9052 ADC IRQ failed ret=%d\n", ret); + ret = da9052_irq_init(da9052); + if (ret != 0) { + dev_err(da9052->dev, "da9052_irq_init failed: %d\n", ret); + return ret; + } ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info, ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL); - if (ret) + if (ret) { + dev_err(da9052->dev, "mfd_add_devices failed: %d\n", ret); goto err; + } return 0; err: - free_irq(DA9052_IRQ_ADC_EOM, da9052); - mfd_remove_devices(da9052->dev); -regmap_err: + da9052_irq_exit(da9052); + return ret; } void da9052_device_exit(struct da9052 *da9052) { - free_irq(DA9052_IRQ_ADC_EOM, da9052); - regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); mfd_remove_devices(da9052->dev); + da9052_irq_exit(da9052); } MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>"); diff --git a/drivers/mfd/da9052-irq.c b/drivers/mfd/da9052-irq.c new file mode 100644 index 000000000000..57ae7841f536 --- /dev/null +++ b/drivers/mfd/da9052-irq.c @@ -0,0 +1,288 @@ +/* + * DA9052 interrupt support + * + * Author: Fabio Estevam <fabio.estevam@freescale.com> + * Based on arizona-irq.c, which is: + * + * Copyright 2012 Wolfson Microelectronics plc + * + * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/device.h> +#include <linux/delay.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> +#include <linux/slab.h> +#include <linux/module.h> + +#include <linux/mfd/da9052/da9052.h> +#include <linux/mfd/da9052/reg.h> + +#define DA9052_NUM_IRQ_REGS 4 +#define DA9052_IRQ_MASK_POS_1 0x01 +#define DA9052_IRQ_MASK_POS_2 0x02 +#define DA9052_IRQ_MASK_POS_3 0x04 +#define DA9052_IRQ_MASK_POS_4 0x08 +#define DA9052_IRQ_MASK_POS_5 0x10 +#define DA9052_IRQ_MASK_POS_6 0x20 +#define DA9052_IRQ_MASK_POS_7 0x40 +#define DA9052_IRQ_MASK_POS_8 0x80 + +static struct regmap_irq da9052_irqs[] = { + [DA9052_IRQ_DCIN] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_1, + }, + [DA9052_IRQ_VBUS] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_2, + }, + [DA9052_IRQ_DCINREM] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_3, + }, + [DA9052_IRQ_VBUSREM] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_4, + }, + [DA9052_IRQ_VDDLOW] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_5, + }, + [DA9052_IRQ_ALARM] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_6, + }, + [DA9052_IRQ_SEQRDY] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_7, + }, + [DA9052_IRQ_COMP1V2] = { + .reg_offset = 0, + .mask = DA9052_IRQ_MASK_POS_8, + }, + [DA9052_IRQ_NONKEY] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_1, + }, + [DA9052_IRQ_IDFLOAT] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_2, + }, + [DA9052_IRQ_IDGND] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_3, + }, + [DA9052_IRQ_CHGEND] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_4, + }, + [DA9052_IRQ_TBAT] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_5, + }, + [DA9052_IRQ_ADC_EOM] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_6, + }, + [DA9052_IRQ_PENDOWN] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_7, + }, + [DA9052_IRQ_TSIREADY] = { + .reg_offset = 1, + .mask = DA9052_IRQ_MASK_POS_8, + }, + [DA9052_IRQ_GPI0] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_1, + }, + [DA9052_IRQ_GPI1] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_2, + }, + [DA9052_IRQ_GPI2] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_3, + }, + [DA9052_IRQ_GPI3] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_4, + }, + [DA9052_IRQ_GPI4] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_5, + }, + [DA9052_IRQ_GPI5] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_6, + }, + [DA9052_IRQ_GPI6] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_7, + }, + [DA9052_IRQ_GPI7] = { + .reg_offset = 2, + .mask = DA9052_IRQ_MASK_POS_8, + }, + [DA9052_IRQ_GPI8] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_1, + }, + [DA9052_IRQ_GPI9] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_2, + }, + [DA9052_IRQ_GPI10] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_3, + }, + [DA9052_IRQ_GPI11] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_4, + }, + [DA9052_IRQ_GPI12] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_5, + }, + [DA9052_IRQ_GPI13] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_6, + }, + [DA9052_IRQ_GPI14] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_7, + }, + [DA9052_IRQ_GPI15] = { + .reg_offset = 3, + .mask = DA9052_IRQ_MASK_POS_8, + }, +}; + +static struct regmap_irq_chip da9052_regmap_irq_chip = { + .name = "da9052_irq", + .status_base = DA9052_EVENT_A_REG, + .mask_base = DA9052_IRQ_MASK_A_REG, + .ack_base = DA9052_EVENT_A_REG, + .num_regs = DA9052_NUM_IRQ_REGS, + .irqs = da9052_irqs, + .num_irqs = ARRAY_SIZE(da9052_irqs), +}; + +static int da9052_map_irq(struct da9052 *da9052, int irq) +{ + return regmap_irq_get_virq(da9052->irq_data, irq); +} + +int da9052_enable_irq(struct da9052 *da9052, int irq) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return irq; + + enable_irq(irq); + + return 0; +} +EXPORT_SYMBOL_GPL(da9052_enable_irq); + +int da9052_disable_irq(struct da9052 *da9052, int irq) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return irq; + + disable_irq(irq); + + return 0; +} +EXPORT_SYMBOL_GPL(da9052_disable_irq); + +int da9052_disable_irq_nosync(struct da9052 *da9052, int irq) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return irq; + + disable_irq_nosync(irq); + + return 0; +} +EXPORT_SYMBOL_GPL(da9052_disable_irq_nosync); + +int da9052_request_irq(struct da9052 *da9052, int irq, char *name, + irq_handler_t handler, void *data) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return irq; + + return request_threaded_irq(irq, NULL, handler, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + name, data); +} +EXPORT_SYMBOL_GPL(da9052_request_irq); + +void da9052_free_irq(struct da9052 *da9052, int irq, void *data) +{ + irq = da9052_map_irq(da9052, irq); + if (irq < 0) + return; + + free_irq(irq, data); +} +EXPORT_SYMBOL_GPL(da9052_free_irq); + +static irqreturn_t da9052_auxadc_irq(int irq, void *irq_data) +{ + struct da9052 *da9052 = irq_data; + + complete(&da9052->done); + + return IRQ_HANDLED; +} + +int da9052_irq_init(struct da9052 *da9052) +{ + int ret; + + ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + -1, &da9052_regmap_irq_chip, + &da9052->irq_data); + if (ret < 0) { + dev_err(da9052->dev, "regmap_add_irq_chip failed: %d\n", ret); + goto regmap_err; + } + + ret = da9052_request_irq(da9052, DA9052_IRQ_ADC_EOM, "adc-irq", + da9052_auxadc_irq, da9052); + + if (ret != 0) { + dev_err(da9052->dev, "DA9052_IRQ_ADC_EOM failed: %d\n", ret); + goto request_irq_err; + } + + return 0; + +request_irq_err: + regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); +regmap_err: + return ret; + +} + +int da9052_irq_exit(struct da9052 *da9052) +{ + da9052_free_irq(da9052, DA9052_IRQ_ADC_EOM , da9052); + regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data); + + return 0; +} diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 29710565a08f..dc8826d8d69d 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -2763,7 +2763,7 @@ static int db8500_irq_init(struct device_node *np) void __init db8500_prcmu_early_init(void) { - if (cpu_is_u8500v2()) { + if (cpu_is_u8500v2() || cpu_is_u9540()) { void *tcpm_base = ioremap_nocache(U8500_PRCMU_TCPM_BASE, SZ_4K); if (tcpm_base != NULL) { @@ -2781,7 +2781,11 @@ void __init db8500_prcmu_early_init(void) iounmap(tcpm_base); } - tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE); + if (cpu_is_u9540()) + tcdm_base = ioremap_nocache(U8500_PRCMU_TCDM_BASE, + SZ_4K + SZ_8K) + SZ_8K; + else + tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE); } else { pr_err("prcmu: Unsupported chip version\n"); BUG(); diff --git a/drivers/mfd/jz4740-adc.c b/drivers/mfd/jz4740-adc.c index 0b8b55bb9b11..e80587f1a792 100644 --- a/drivers/mfd/jz4740-adc.c +++ b/drivers/mfd/jz4740-adc.c @@ -211,7 +211,7 @@ static int jz4740_adc_probe(struct platform_device *pdev) int ret; int irq_base; - adc = kmalloc(sizeof(*adc), GFP_KERNEL); + adc = devm_kzalloc(&pdev->dev, sizeof(*adc), GFP_KERNEL); if (!adc) { dev_err(&pdev->dev, "Failed to allocate driver structure\n"); return -ENOMEM; @@ -221,30 +221,27 @@ static int jz4740_adc_probe(struct platform_device *pdev) if (adc->irq < 0) { ret = adc->irq; dev_err(&pdev->dev, "Failed to get platform irq: %d\n", ret); - goto err_free; + return ret; } irq_base = platform_get_irq(pdev, 1); if (irq_base < 0) { - ret = irq_base; - dev_err(&pdev->dev, "Failed to get irq base: %d\n", ret); - goto err_free; + dev_err(&pdev->dev, "Failed to get irq base: %d\n", irq_base); + return irq_base; } mem_base = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!mem_base) { - ret = -ENOENT; dev_err(&pdev->dev, "Failed to get platform mmio resource\n"); - goto err_free; + return -ENOENT; } /* Only request the shared registers for the MFD driver */ adc->mem = request_mem_region(mem_base->start, JZ_REG_ADC_STATUS, pdev->name); if (!adc->mem) { - ret = -EBUSY; dev_err(&pdev->dev, "Failed to request mmio memory region\n"); - goto err_free; + return -EBUSY; } adc->base = ioremap_nocache(adc->mem->start, resource_size(adc->mem)); @@ -301,9 +298,6 @@ err_iounmap: iounmap(adc->base); err_release_mem_region: release_mem_region(adc->mem->start, resource_size(adc->mem)); -err_free: - kfree(adc); - return ret; } @@ -325,8 +319,6 @@ static int jz4740_adc_remove(struct platform_device *pdev) platform_set_drvdata(pdev, NULL); - kfree(adc); - return 0; } diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c index 2ad24caa07db..d9d930302e98 100644 --- a/drivers/mfd/lpc_ich.c +++ b/drivers/mfd/lpc_ich.c @@ -734,7 +734,7 @@ static int lpc_ich_init_gpio(struct pci_dev *dev, pci_read_config_dword(dev, ACPIBASE, &base_addr_cfg); base_addr = base_addr_cfg & 0x0000ff80; if (!base_addr) { - dev_err(&dev->dev, "I/O space for ACPI uninitialized\n"); + dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n"); lpc_ich_cells[LPC_GPIO].num_resources--; goto gpe0_done; } @@ -760,7 +760,7 @@ gpe0_done: pci_read_config_dword(dev, GPIOBASE, &base_addr_cfg); base_addr = base_addr_cfg & 0x0000ff80; if (!base_addr) { - dev_err(&dev->dev, "I/O space for GPIO uninitialized\n"); + dev_notice(&dev->dev, "I/O space for GPIO uninitialized\n"); ret = -ENODEV; goto gpio_done; } @@ -810,7 +810,7 @@ static int lpc_ich_init_wdt(struct pci_dev *dev, pci_read_config_dword(dev, ACPIBASE, &base_addr_cfg); base_addr = base_addr_cfg & 0x0000ff80; if (!base_addr) { - dev_err(&dev->dev, "I/O space for ACPI uninitialized\n"); + dev_notice(&dev->dev, "I/O space for ACPI uninitialized\n"); ret = -ENODEV; goto wdt_done; } @@ -830,12 +830,15 @@ static int lpc_ich_init_wdt(struct pci_dev *dev, * we have to read RCBA from PCI Config space 0xf0 and use * it as base. GCS = RCBA + ICH6_GCS(0x3410). */ - if (lpc_chipset_info[id->driver_data].iTCO_version == 2) { + if (lpc_chipset_info[id->driver_data].iTCO_version == 1) { + /* Don't register iomem for TCO ver 1 */ + lpc_ich_cells[LPC_WDT].num_resources--; + } else { pci_read_config_dword(dev, RCBABASE, &base_addr_cfg); base_addr = base_addr_cfg & 0xffffc000; if (!(base_addr_cfg & 1)) { - pr_err("RCBA is disabled by hardware/BIOS, " - "device disabled\n"); + dev_notice(&dev->dev, "RCBA is disabled by " + "hardware/BIOS, device disabled\n"); ret = -ENODEV; goto wdt_done; } @@ -871,6 +874,7 @@ static int lpc_ich_probe(struct pci_dev *dev, * successfully. */ if (!cell_added) { + dev_warn(&dev->dev, "No MFD cells added\n"); lpc_ich_restore_config_space(dev); return -ENODEV; } diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c index 1aba0238f426..2a9b100c4825 100644 --- a/drivers/mfd/mc13xxx-core.c +++ b/drivers/mfd/mc13xxx-core.c @@ -119,6 +119,11 @@ #define MC13XXX_REVISION_FAB (0x03 << 11) #define MC13XXX_REVISION_ICIDCODE (0x3f << 13) +#define MC34708_REVISION_REVMETAL (0x07 << 0) +#define MC34708_REVISION_REVFULL (0x07 << 3) +#define MC34708_REVISION_FIN (0x07 << 6) +#define MC34708_REVISION_FAB (0x07 << 9) + #define MC13XXX_ADC1 44 #define MC13XXX_ADC1_ADEN (1 << 0) #define MC13XXX_ADC1_RAND (1 << 1) @@ -410,62 +415,52 @@ static irqreturn_t mc13xxx_irq_thread(int irq, void *data) return IRQ_RETVAL(handled); } -static const char *mc13xxx_chipname[] = { - [MC13XXX_ID_MC13783] = "mc13783", - [MC13XXX_ID_MC13892] = "mc13892", -}; - #define maskval(reg, mask) (((reg) & (mask)) >> __ffs(mask)) -static int mc13xxx_identify(struct mc13xxx *mc13xxx) +static void mc13xxx_print_revision(struct mc13xxx *mc13xxx, u32 revision) { - u32 icid; - u32 revision; - int ret; - - /* - * Get the generation ID from register 46, as apparently some older - * IC revisions only have this info at this location. Newer ICs seem to - * have both. - */ - ret = mc13xxx_reg_read(mc13xxx, 46, &icid); - if (ret) - return ret; + dev_info(mc13xxx->dev, "%s: rev: %d.%d, " + "fin: %d, fab: %d, icid: %d/%d\n", + mc13xxx->variant->name, + maskval(revision, MC13XXX_REVISION_REVFULL), + maskval(revision, MC13XXX_REVISION_REVMETAL), + maskval(revision, MC13XXX_REVISION_FIN), + maskval(revision, MC13XXX_REVISION_FAB), + maskval(revision, MC13XXX_REVISION_ICID), + maskval(revision, MC13XXX_REVISION_ICIDCODE)); +} - icid = (icid >> 6) & 0x7; +static void mc34708_print_revision(struct mc13xxx *mc13xxx, u32 revision) +{ + dev_info(mc13xxx->dev, "%s: rev %d.%d, fin: %d, fab: %d\n", + mc13xxx->variant->name, + maskval(revision, MC34708_REVISION_REVFULL), + maskval(revision, MC34708_REVISION_REVMETAL), + maskval(revision, MC34708_REVISION_FIN), + maskval(revision, MC34708_REVISION_FAB)); +} - switch (icid) { - case 2: - mc13xxx->ictype = MC13XXX_ID_MC13783; - break; - case 7: - mc13xxx->ictype = MC13XXX_ID_MC13892; - break; - default: - mc13xxx->ictype = MC13XXX_ID_INVALID; - break; - } +/* These are only exported for mc13xxx-i2c and mc13xxx-spi */ +struct mc13xxx_variant mc13xxx_variant_mc13783 = { + .name = "mc13783", + .print_revision = mc13xxx_print_revision, +}; +EXPORT_SYMBOL_GPL(mc13xxx_variant_mc13783); - if (mc13xxx->ictype == MC13XXX_ID_MC13783 || - mc13xxx->ictype == MC13XXX_ID_MC13892) { - ret = mc13xxx_reg_read(mc13xxx, MC13XXX_REVISION, &revision); - - dev_info(mc13xxx->dev, "%s: rev: %d.%d, " - "fin: %d, fab: %d, icid: %d/%d\n", - mc13xxx_chipname[mc13xxx->ictype], - maskval(revision, MC13XXX_REVISION_REVFULL), - maskval(revision, MC13XXX_REVISION_REVMETAL), - maskval(revision, MC13XXX_REVISION_FIN), - maskval(revision, MC13XXX_REVISION_FAB), - maskval(revision, MC13XXX_REVISION_ICID), - maskval(revision, MC13XXX_REVISION_ICIDCODE)); - } +struct mc13xxx_variant mc13xxx_variant_mc13892 = { + .name = "mc13892", + .print_revision = mc13xxx_print_revision, +}; +EXPORT_SYMBOL_GPL(mc13xxx_variant_mc13892); - return (mc13xxx->ictype == MC13XXX_ID_INVALID) ? -ENODEV : 0; -} +struct mc13xxx_variant mc13xxx_variant_mc34708 = { + .name = "mc34708", + .print_revision = mc34708_print_revision, +}; +EXPORT_SYMBOL_GPL(mc13xxx_variant_mc34708); static const char *mc13xxx_get_chipname(struct mc13xxx *mc13xxx) { - return mc13xxx_chipname[mc13xxx->ictype]; + return mc13xxx->variant->name; } int mc13xxx_get_flags(struct mc13xxx *mc13xxx) @@ -653,13 +648,16 @@ int mc13xxx_common_init(struct mc13xxx *mc13xxx, struct mc13xxx_platform_data *pdata, int irq) { int ret; + u32 revision; mc13xxx_lock(mc13xxx); - ret = mc13xxx_identify(mc13xxx); + ret = mc13xxx_reg_read(mc13xxx, MC13XXX_REVISION, &revision); if (ret) goto err_revision; + mc13xxx->variant->print_revision(mc13xxx, revision); + /* mask all irqs */ ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK0, 0x00ffffff); if (ret) diff --git a/drivers/mfd/mc13xxx-i2c.c b/drivers/mfd/mc13xxx-i2c.c index 7957999f30bb..f745e27ee874 100644 --- a/drivers/mfd/mc13xxx-i2c.c +++ b/drivers/mfd/mc13xxx-i2c.c @@ -24,7 +24,10 @@ static const struct i2c_device_id mc13xxx_i2c_device_id[] = { { .name = "mc13892", - .driver_data = MC13XXX_ID_MC13892, + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, + }, { + .name = "mc34708", + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708, }, { /* sentinel */ } @@ -34,7 +37,10 @@ MODULE_DEVICE_TABLE(i2c, mc13xxx_i2c_device_id); static const struct of_device_id mc13xxx_dt_ids[] = { { .compatible = "fsl,mc13892", - .data = (void *) &mc13xxx_i2c_device_id[0], + .data = &mc13xxx_variant_mc13892, + }, { + .compatible = "fsl,mc34708", + .data = &mc13xxx_variant_mc34708, }, { /* sentinel */ } @@ -76,11 +82,15 @@ static int mc13xxx_i2c_probe(struct i2c_client *client, return ret; } - ret = mc13xxx_common_init(mc13xxx, pdata, client->irq); + if (client->dev.of_node) { + const struct of_device_id *of_id = + of_match_device(mc13xxx_dt_ids, &client->dev); + mc13xxx->variant = of_id->data; + } else { + mc13xxx->variant = (void *)id->driver_data; + } - if (ret == 0 && (id->driver_data != mc13xxx->ictype)) - dev_warn(mc13xxx->dev, - "device id doesn't match auto detection!\n"); + ret = mc13xxx_common_init(mc13xxx, pdata, client->irq); return ret; } diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c index cb32f69d80ba..3032bae20b62 100644 --- a/drivers/mfd/mc13xxx-spi.c +++ b/drivers/mfd/mc13xxx-spi.c @@ -28,10 +28,13 @@ static const struct spi_device_id mc13xxx_device_id[] = { { .name = "mc13783", - .driver_data = MC13XXX_ID_MC13783, + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13783, }, { .name = "mc13892", - .driver_data = MC13XXX_ID_MC13892, + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc13892, + }, { + .name = "mc34708", + .driver_data = (kernel_ulong_t)&mc13xxx_variant_mc34708, }, { /* sentinel */ } @@ -39,8 +42,9 @@ static const struct spi_device_id mc13xxx_device_id[] = { MODULE_DEVICE_TABLE(spi, mc13xxx_device_id); static const struct of_device_id mc13xxx_dt_ids[] = { - { .compatible = "fsl,mc13783", .data = (void *) MC13XXX_ID_MC13783, }, - { .compatible = "fsl,mc13892", .data = (void *) MC13XXX_ID_MC13892, }, + { .compatible = "fsl,mc13783", .data = &mc13xxx_variant_mc13783, }, + { .compatible = "fsl,mc13892", .data = &mc13xxx_variant_mc13892, }, + { .compatible = "fsl,mc34708", .data = &mc13xxx_variant_mc34708, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, mc13xxx_dt_ids); @@ -144,19 +148,18 @@ static int mc13xxx_spi_probe(struct spi_device *spi) return ret; } - ret = mc13xxx_common_init(mc13xxx, pdata, spi->irq); + if (spi->dev.of_node) { + const struct of_device_id *of_id = + of_match_device(mc13xxx_dt_ids, &spi->dev); - if (ret) { - dev_set_drvdata(&spi->dev, NULL); + mc13xxx->variant = of_id->data; } else { - const struct spi_device_id *devid = - spi_get_device_id(spi); - if (!devid || devid->driver_data != mc13xxx->ictype) - dev_warn(mc13xxx->dev, - "device id doesn't match auto detection!\n"); + const struct spi_device_id *id_entry = spi_get_device_id(spi); + + mc13xxx->variant = (void *)id_entry->driver_data; } - return ret; + return mc13xxx_common_init(mc13xxx, pdata, spi->irq); } static int mc13xxx_spi_remove(struct spi_device *spi) diff --git a/drivers/mfd/mc13xxx.h b/drivers/mfd/mc13xxx.h index bbba06feea06..460ec5c7b18c 100644 --- a/drivers/mfd/mc13xxx.h +++ b/drivers/mfd/mc13xxx.h @@ -13,19 +13,25 @@ #include <linux/regmap.h> #include <linux/mfd/mc13xxx.h> -enum mc13xxx_id { - MC13XXX_ID_MC13783, - MC13XXX_ID_MC13892, - MC13XXX_ID_INVALID, +#define MC13XXX_NUMREGS 0x3f + +struct mc13xxx; + +struct mc13xxx_variant { + const char *name; + void (*print_revision)(struct mc13xxx *mc13xxx, u32 revision); }; -#define MC13XXX_NUMREGS 0x3f +extern struct mc13xxx_variant + mc13xxx_variant_mc13783, + mc13xxx_variant_mc13892, + mc13xxx_variant_mc34708; struct mc13xxx { struct regmap *regmap; struct device *dev; - enum mc13xxx_id ictype; + const struct mc13xxx_variant *variant; struct mutex lock; int irq; diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index f8b77711ad2d..7604f4e5df40 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -21,6 +21,10 @@ #include <linux/irqdomain.h> #include <linux/of.h> +static struct device_type mfd_dev_type = { + .name = "mfd_device", +}; + int mfd_cell_enable(struct platform_device *pdev) { const struct mfd_cell *cell = mfd_get_cell(pdev); @@ -91,6 +95,7 @@ static int mfd_add_device(struct device *parent, int id, goto fail_device; pdev->dev.parent = parent; + pdev->dev.type = &mfd_dev_type; if (parent->of_node && cell->of_compatible) { for_each_child_of_node(parent->of_node, np) { @@ -204,10 +209,16 @@ EXPORT_SYMBOL(mfd_add_devices); static int mfd_remove_devices_fn(struct device *dev, void *c) { - struct platform_device *pdev = to_platform_device(dev); - const struct mfd_cell *cell = mfd_get_cell(pdev); + struct platform_device *pdev; + const struct mfd_cell *cell; atomic_t **usage_count = c; + if (dev->type != &mfd_dev_type) + return 0; + + pdev = to_platform_device(dev); + cell = mfd_get_cell(pdev); + /* find the base address of usage_count pointers (for freeing) */ if (!*usage_count || (cell->usage_count < *usage_count)) *usage_count = cell->usage_count; diff --git a/drivers/mfd/rc5t583-irq.c b/drivers/mfd/rc5t583-irq.c index fe00cdd6f83d..b41db5968706 100644 --- a/drivers/mfd/rc5t583-irq.c +++ b/drivers/mfd/rc5t583-irq.c @@ -345,7 +345,7 @@ int rc5t583_irq_init(struct rc5t583 *rc5t583, int irq, int irq_base) mutex_init(&rc5t583->irq_lock); /* Initailize all int register to 0 */ - for (i = 0; i < RC5T583_MAX_INTERRUPT_MASK_REGS; i++) { + for (i = 0; i < RC5T583_MAX_INTERRUPT_EN_REGS; i++) { ret = rc5t583_write(rc5t583->dev, irq_en_add[i], rc5t583->irq_en_reg[i]); if (ret < 0) diff --git a/drivers/mfd/retu-mfd.c b/drivers/mfd/retu-mfd.c new file mode 100644 index 000000000000..7ff4a37ab0c0 --- /dev/null +++ b/drivers/mfd/retu-mfd.c @@ -0,0 +1,264 @@ +/* + * Retu MFD driver + * + * Copyright (C) 2004, 2005 Nokia Corporation + * + * Based on code written by Juha Yrjölä, David Weinehall and Mikko Ylinen. + * Rewritten by Aaro Koskinen. + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/irq.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/mutex.h> +#include <linux/module.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/mfd/retu.h> +#include <linux/interrupt.h> +#include <linux/moduleparam.h> + +/* Registers */ +#define RETU_REG_ASICR 0x00 /* ASIC ID and revision */ +#define RETU_REG_ASICR_VILMA (1 << 7) /* Bit indicating Vilma */ +#define RETU_REG_IDR 0x01 /* Interrupt ID */ +#define RETU_REG_IMR 0x02 /* Interrupt mask */ + +/* Interrupt sources */ +#define RETU_INT_PWR 0 /* Power button */ + +struct retu_dev { + struct regmap *regmap; + struct device *dev; + struct mutex mutex; + struct regmap_irq_chip_data *irq_data; +}; + +static struct resource retu_pwrbutton_res[] = { + { + .name = "retu-pwrbutton", + .start = RETU_INT_PWR, + .end = RETU_INT_PWR, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct mfd_cell retu_devs[] = { + { + .name = "retu-wdt" + }, + { + .name = "retu-pwrbutton", + .resources = retu_pwrbutton_res, + .num_resources = ARRAY_SIZE(retu_pwrbutton_res), + } +}; + +static struct regmap_irq retu_irqs[] = { + [RETU_INT_PWR] = { + .mask = 1 << RETU_INT_PWR, + } +}; + +static struct regmap_irq_chip retu_irq_chip = { + .name = "RETU", + .irqs = retu_irqs, + .num_irqs = ARRAY_SIZE(retu_irqs), + .num_regs = 1, + .status_base = RETU_REG_IDR, + .mask_base = RETU_REG_IMR, + .ack_base = RETU_REG_IDR, +}; + +/* Retu device registered for the power off. */ +static struct retu_dev *retu_pm_power_off; + +int retu_read(struct retu_dev *rdev, u8 reg) +{ + int ret; + int value; + + mutex_lock(&rdev->mutex); + ret = regmap_read(rdev->regmap, reg, &value); + mutex_unlock(&rdev->mutex); + + return ret ? ret : value; +} +EXPORT_SYMBOL_GPL(retu_read); + +int retu_write(struct retu_dev *rdev, u8 reg, u16 data) +{ + int ret; + + mutex_lock(&rdev->mutex); + ret = regmap_write(rdev->regmap, reg, data); + mutex_unlock(&rdev->mutex); + + return ret; +} +EXPORT_SYMBOL_GPL(retu_write); + +static void retu_power_off(void) +{ + struct retu_dev *rdev = retu_pm_power_off; + int reg; + + mutex_lock(&retu_pm_power_off->mutex); + + /* Ignore power button state */ + regmap_read(rdev->regmap, RETU_REG_CC1, ®); + regmap_write(rdev->regmap, RETU_REG_CC1, reg | 2); + + /* Expire watchdog immediately */ + regmap_write(rdev->regmap, RETU_REG_WATCHDOG, 0); + + /* Wait for poweroff */ + for (;;) + cpu_relax(); + + mutex_unlock(&retu_pm_power_off->mutex); +} + +static int retu_regmap_read(void *context, const void *reg, size_t reg_size, + void *val, size_t val_size) +{ + int ret; + struct device *dev = context; + struct i2c_client *i2c = to_i2c_client(dev); + + BUG_ON(reg_size != 1 || val_size != 2); + + ret = i2c_smbus_read_word_data(i2c, *(u8 const *)reg); + if (ret < 0) + return ret; + + *(u16 *)val = ret; + return 0; +} + +static int retu_regmap_write(void *context, const void *data, size_t count) +{ + u8 reg; + u16 val; + struct device *dev = context; + struct i2c_client *i2c = to_i2c_client(dev); + + BUG_ON(count != sizeof(reg) + sizeof(val)); + memcpy(®, data, sizeof(reg)); + memcpy(&val, data + sizeof(reg), sizeof(val)); + return i2c_smbus_write_word_data(i2c, reg, val); +} + +static struct regmap_bus retu_bus = { + .read = retu_regmap_read, + .write = retu_regmap_write, + .val_format_endian_default = REGMAP_ENDIAN_NATIVE, +}; + +static struct regmap_config retu_config = { + .reg_bits = 8, + .val_bits = 16, +}; + +static int __devinit retu_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct retu_dev *rdev; + int ret; + + rdev = devm_kzalloc(&i2c->dev, sizeof(*rdev), GFP_KERNEL); + if (rdev == NULL) + return -ENOMEM; + + i2c_set_clientdata(i2c, rdev); + rdev->dev = &i2c->dev; + mutex_init(&rdev->mutex); + rdev->regmap = devm_regmap_init(&i2c->dev, &retu_bus, &i2c->dev, + &retu_config); + if (IS_ERR(rdev->regmap)) + return PTR_ERR(rdev->regmap); + + ret = retu_read(rdev, RETU_REG_ASICR); + if (ret < 0) { + dev_err(rdev->dev, "could not read Retu revision: %d\n", ret); + return ret; + } + + dev_info(rdev->dev, "Retu%s v%d.%d found\n", + (ret & RETU_REG_ASICR_VILMA) ? " & Vilma" : "", + (ret >> 4) & 0x7, ret & 0xf); + + /* Mask all RETU interrupts. */ + ret = retu_write(rdev, RETU_REG_IMR, 0xffff); + if (ret < 0) + return ret; + + ret = regmap_add_irq_chip(rdev->regmap, i2c->irq, IRQF_ONESHOT, -1, + &retu_irq_chip, &rdev->irq_data); + if (ret < 0) + return ret; + + ret = mfd_add_devices(rdev->dev, -1, retu_devs, ARRAY_SIZE(retu_devs), + NULL, regmap_irq_chip_get_base(rdev->irq_data), + NULL); + if (ret < 0) { + regmap_del_irq_chip(i2c->irq, rdev->irq_data); + return ret; + } + + if (!pm_power_off) { + retu_pm_power_off = rdev; + pm_power_off = retu_power_off; + } + + return 0; +} + +static int __devexit retu_remove(struct i2c_client *i2c) +{ + struct retu_dev *rdev = i2c_get_clientdata(i2c); + + if (retu_pm_power_off == rdev) { + pm_power_off = NULL; + retu_pm_power_off = NULL; + } + mfd_remove_devices(rdev->dev); + regmap_del_irq_chip(i2c->irq, rdev->irq_data); + + return 0; +} + +static const struct i2c_device_id retu_id[] = { + { "retu-mfd", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, retu_id); + +static struct i2c_driver retu_driver = { + .driver = { + .name = "retu-mfd", + .owner = THIS_MODULE, + }, + .probe = retu_probe, + .remove = retu_remove, + .id_table = retu_id, +}; +module_i2c_driver(retu_driver); + +MODULE_DESCRIPTION("Retu MFD driver"); +MODULE_AUTHOR("Juha Yrjölä"); +MODULE_AUTHOR("David Weinehall"); +MODULE_AUTHOR("Mikko Ylinen"); +MODULE_AUTHOR("Aaro Koskinen <aaro.koskinen@iki.fi>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index 56d4377c62c2..3a44efa29203 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -22,6 +22,7 @@ #include <linux/pci.h> #include <linux/module.h> +#include <linux/slab.h> #include <linux/dma-mapping.h> #include <linux/highmem.h> #include <linux/interrupt.h> diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c index c901fa50fea1..0dd84e99081e 100644 --- a/drivers/mfd/sec-irq.c +++ b/drivers/mfd/sec-irq.c @@ -24,67 +24,67 @@ static struct regmap_irq s2mps11_irqs[] = { [S2MPS11_IRQ_PWRONF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_PWRONF_MASK, }, [S2MPS11_IRQ_PWRONR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_PWRONR_MASK, }, [S2MPS11_IRQ_JIGONBF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_JIGONBF_MASK, }, [S2MPS11_IRQ_JIGONBR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_JIGONBR_MASK, }, [S2MPS11_IRQ_ACOKBF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_ACOKBF_MASK, }, [S2MPS11_IRQ_ACOKBR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_ACOKBR_MASK, }, [S2MPS11_IRQ_PWRON1S] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_PWRON1S_MASK, }, [S2MPS11_IRQ_MRB] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S2MPS11_IRQ_MRB_MASK, }, [S2MPS11_IRQ_RTC60S] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_RTC60S_MASK, }, [S2MPS11_IRQ_RTCA1] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_RTCA1_MASK, }, [S2MPS11_IRQ_RTCA2] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_RTCA2_MASK, }, [S2MPS11_IRQ_SMPL] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_SMPL_MASK, }, [S2MPS11_IRQ_RTC1S] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_RTC1S_MASK, }, [S2MPS11_IRQ_WTSR] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S2MPS11_IRQ_WTSR_MASK, }, [S2MPS11_IRQ_INT120C] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S2MPS11_IRQ_INT120C_MASK, }, [S2MPS11_IRQ_INT140C] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S2MPS11_IRQ_INT140C_MASK, }, }; @@ -92,146 +92,146 @@ static struct regmap_irq s2mps11_irqs[] = { static struct regmap_irq s5m8767_irqs[] = { [S5M8767_IRQ_PWRR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_PWRR_MASK, }, [S5M8767_IRQ_PWRF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_PWRF_MASK, }, [S5M8767_IRQ_PWR1S] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_PWR1S_MASK, }, [S5M8767_IRQ_JIGR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_JIGR_MASK, }, [S5M8767_IRQ_JIGF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_JIGF_MASK, }, [S5M8767_IRQ_LOWBAT2] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_LOWBAT2_MASK, }, [S5M8767_IRQ_LOWBAT1] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8767_IRQ_LOWBAT1_MASK, }, [S5M8767_IRQ_MRB] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8767_IRQ_MRB_MASK, }, [S5M8767_IRQ_DVSOK2] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8767_IRQ_DVSOK2_MASK, }, [S5M8767_IRQ_DVSOK3] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8767_IRQ_DVSOK3_MASK, }, [S5M8767_IRQ_DVSOK4] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8767_IRQ_DVSOK4_MASK, }, [S5M8767_IRQ_RTC60S] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_RTC60S_MASK, }, [S5M8767_IRQ_RTCA1] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_RTCA1_MASK, }, [S5M8767_IRQ_RTCA2] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_RTCA2_MASK, }, [S5M8767_IRQ_SMPL] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_SMPL_MASK, }, [S5M8767_IRQ_RTC1S] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_RTC1S_MASK, }, [S5M8767_IRQ_WTSR] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8767_IRQ_WTSR_MASK, }, }; static struct regmap_irq s5m8763_irqs[] = { [S5M8763_IRQ_DCINF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_DCINF_MASK, }, [S5M8763_IRQ_DCINR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_DCINR_MASK, }, [S5M8763_IRQ_JIGF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_JIGF_MASK, }, [S5M8763_IRQ_JIGR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_JIGR_MASK, }, [S5M8763_IRQ_PWRONF] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_PWRONF_MASK, }, [S5M8763_IRQ_PWRONR] = { - .reg_offset = 1, + .reg_offset = 0, .mask = S5M8763_IRQ_PWRONR_MASK, }, [S5M8763_IRQ_WTSREVNT] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8763_IRQ_WTSREVNT_MASK, }, [S5M8763_IRQ_SMPLEVNT] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8763_IRQ_SMPLEVNT_MASK, }, [S5M8763_IRQ_ALARM1] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8763_IRQ_ALARM1_MASK, }, [S5M8763_IRQ_ALARM0] = { - .reg_offset = 2, + .reg_offset = 1, .mask = S5M8763_IRQ_ALARM0_MASK, }, [S5M8763_IRQ_ONKEY1S] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_ONKEY1S_MASK, }, [S5M8763_IRQ_TOPOFFR] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_TOPOFFR_MASK, }, [S5M8763_IRQ_DCINOVPR] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_DCINOVPR_MASK, }, [S5M8763_IRQ_CHGRSTF] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_CHGRSTF_MASK, }, [S5M8763_IRQ_DONER] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_DONER_MASK, }, [S5M8763_IRQ_CHGFAULT] = { - .reg_offset = 3, + .reg_offset = 2, .mask = S5M8763_IRQ_CHGFAULT_MASK, }, [S5M8763_IRQ_LOBAT1] = { - .reg_offset = 4, + .reg_offset = 3, .mask = S5M8763_IRQ_LOBAT1_MASK, }, [S5M8763_IRQ_LOBAT2] = { - .reg_offset = 4, + .reg_offset = 3, .mask = S5M8763_IRQ_LOBAT2_MASK, }, }; diff --git a/drivers/mfd/sta2x11-mfd.c b/drivers/mfd/sta2x11-mfd.c index d6284cacd27a..1225dcbcfcfc 100644 --- a/drivers/mfd/sta2x11-mfd.c +++ b/drivers/mfd/sta2x11-mfd.c @@ -1,6 +1,6 @@ /* * Copyright (c) 2009-2011 Wind River Systems, Inc. - * Copyright (c) 2011 ST Microelectronics (Alessandro Rubini) + * Copyright (c) 2011 ST Microelectronics (Alessandro Rubini, Davide Ciminaghi) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -27,21 +27,28 @@ #include <linux/io.h> #include <linux/ioport.h> #include <linux/pci.h> -#include <linux/debugfs.h> #include <linux/seq_file.h> #include <linux/platform_device.h> #include <linux/mfd/core.h> #include <linux/mfd/sta2x11-mfd.h> +#include <linux/regmap.h> #include <asm/sta2x11.h> +static inline int __reg_within_range(unsigned int r, + unsigned int start, + unsigned int end) +{ + return ((r >= start) && (r <= end)); +} + /* This describes STA2X11 MFD chip for us, we may have several */ struct sta2x11_mfd { struct sta2x11_instance *instance; - spinlock_t lock; + struct regmap *regmap[sta2x11_n_mfd_plat_devs]; + spinlock_t lock[sta2x11_n_mfd_plat_devs]; struct list_head list; - void __iomem *sctl_regs; - void __iomem *apbreg_regs; + void __iomem *regs[sta2x11_n_mfd_plat_devs]; }; static LIST_HEAD(sta2x11_mfd_list); @@ -71,6 +78,7 @@ static struct sta2x11_mfd *sta2x11_mfd_find(struct pci_dev *pdev) static int sta2x11_mfd_add(struct pci_dev *pdev, gfp_t flags) { + int i; struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev); struct sta2x11_instance *instance; @@ -83,7 +91,8 @@ static int sta2x11_mfd_add(struct pci_dev *pdev, gfp_t flags) if (!mfd) return -ENOMEM; INIT_LIST_HEAD(&mfd->list); - spin_lock_init(&mfd->lock); + for (i = 0; i < ARRAY_SIZE(mfd->lock); i++) + spin_lock_init(&mfd->lock[i]); mfd->instance = instance; list_add(&mfd->list, &sta2x11_mfd_list); return 0; @@ -100,161 +109,276 @@ static int mfd_remove(struct pci_dev *pdev) return 0; } -/* These two functions are exported and are not expected to fail */ -u32 sta2x11_sctl_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val) +/* This function is exported and is not expected to fail */ +u32 __sta2x11_mfd_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val, + enum sta2x11_mfd_plat_dev index) { struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev); u32 r; unsigned long flags; + void __iomem *regs; if (!mfd) { dev_warn(&pdev->dev, ": can't access sctl regs\n"); return 0; } - if (!mfd->sctl_regs) { + + regs = mfd->regs[index]; + if (!regs) { dev_warn(&pdev->dev, ": system ctl not initialized\n"); return 0; } - spin_lock_irqsave(&mfd->lock, flags); - r = readl(mfd->sctl_regs + reg); + spin_lock_irqsave(&mfd->lock[index], flags); + r = readl(regs + reg); r &= ~mask; r |= val; if (mask) - writel(r, mfd->sctl_regs + reg); - spin_unlock_irqrestore(&mfd->lock, flags); + writel(r, regs + reg); + spin_unlock_irqrestore(&mfd->lock[index], flags); return r; } -EXPORT_SYMBOL(sta2x11_sctl_mask); +EXPORT_SYMBOL(__sta2x11_mfd_mask); -u32 sta2x11_apbreg_mask(struct pci_dev *pdev, u32 reg, u32 mask, u32 val) +int sta2x11_mfd_get_regs_data(struct platform_device *dev, + enum sta2x11_mfd_plat_dev index, + void __iomem **regs, + spinlock_t **lock) { - struct sta2x11_mfd *mfd = sta2x11_mfd_find(pdev); - u32 r; - unsigned long flags; + struct pci_dev *pdev = *(struct pci_dev **)(dev->dev.platform_data); + struct sta2x11_mfd *mfd; - if (!mfd) { - dev_warn(&pdev->dev, ": can't access apb regs\n"); - return 0; - } - if (!mfd->apbreg_regs) { - dev_warn(&pdev->dev, ": apb bridge not initialized\n"); - return 0; - } - spin_lock_irqsave(&mfd->lock, flags); - r = readl(mfd->apbreg_regs + reg); - r &= ~mask; - r |= val; - if (mask) - writel(r, mfd->apbreg_regs + reg); - spin_unlock_irqrestore(&mfd->lock, flags); - return r; + if (!pdev) + return -ENODEV; + mfd = sta2x11_mfd_find(pdev); + if (!mfd) + return -ENODEV; + if (index >= sta2x11_n_mfd_plat_devs) + return -ENODEV; + *regs = mfd->regs[index]; + *lock = &mfd->lock[index]; + pr_debug("%s %d *regs = %p\n", __func__, __LINE__, *regs); + return *regs ? 0 : -ENODEV; } -EXPORT_SYMBOL(sta2x11_apbreg_mask); - -/* Two debugfs files, for our registers (FIXME: one instance only) */ -#define REG(regname) {.name = #regname, .offset = SCTL_ ## regname} -static struct debugfs_reg32 sta2x11_sctl_regs[] = { - REG(SCCTL), REG(ARMCFG), REG(SCPLLCTL), REG(SCPLLFCTRL), - REG(SCRESFRACT), REG(SCRESCTRL1), REG(SCRESXTRL2), REG(SCPEREN0), - REG(SCPEREN1), REG(SCPEREN2), REG(SCGRST), REG(SCPCIPMCR1), - REG(SCPCIPMCR2), REG(SCPCIPMSR1), REG(SCPCIPMSR2), REG(SCPCIPMSR3), - REG(SCINTREN), REG(SCRISR), REG(SCCLKSTAT0), REG(SCCLKSTAT1), - REG(SCCLKSTAT2), REG(SCRSTSTA), -}; -#undef REG +EXPORT_SYMBOL(sta2x11_mfd_get_regs_data); -static struct debugfs_regset32 sctl_regset = { - .regs = sta2x11_sctl_regs, - .nregs = ARRAY_SIZE(sta2x11_sctl_regs), -}; +/* + * Special sta2x11-mfd regmap lock/unlock functions + */ + +static void sta2x11_regmap_lock(void *__lock) +{ + spinlock_t *lock = __lock; + spin_lock(lock); +} -#define REG(regname) {.name = #regname, .offset = regname} -static struct debugfs_reg32 sta2x11_apbreg_regs[] = { - REG(APBREG_BSR), REG(APBREG_PAER), REG(APBREG_PWAC), REG(APBREG_PRAC), - REG(APBREG_PCG), REG(APBREG_PUR), REG(APBREG_EMU_PCG), +static void sta2x11_regmap_unlock(void *__lock) +{ + spinlock_t *lock = __lock; + spin_unlock(lock); +} + +/* OTP (one time programmable registers do not require locking */ +static void sta2x11_regmap_nolock(void *__lock) +{ +} + +static const char *sta2x11_mfd_names[sta2x11_n_mfd_plat_devs] = { + [sta2x11_sctl] = STA2X11_MFD_SCTL_NAME, + [sta2x11_apbreg] = STA2X11_MFD_APBREG_NAME, + [sta2x11_apb_soc_regs] = STA2X11_MFD_APB_SOC_REGS_NAME, + [sta2x11_scr] = STA2X11_MFD_SCR_NAME, }; -#undef REG -static struct debugfs_regset32 apbreg_regset = { - .regs = sta2x11_apbreg_regs, - .nregs = ARRAY_SIZE(sta2x11_apbreg_regs), +static bool sta2x11_sctl_writeable_reg(struct device *dev, unsigned int reg) +{ + return !__reg_within_range(reg, SCTL_SCPCIECSBRST, SCTL_SCRSTSTA); +} + +static struct regmap_config sta2x11_sctl_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .lock = sta2x11_regmap_lock, + .unlock = sta2x11_regmap_unlock, + .max_register = SCTL_SCRSTSTA, + .writeable_reg = sta2x11_sctl_writeable_reg, }; -static struct dentry *sta2x11_sctl_debugfs; -static struct dentry *sta2x11_apbreg_debugfs; +static bool sta2x11_scr_readable_reg(struct device *dev, unsigned int reg) +{ + return (reg == STA2X11_SECR_CR) || + __reg_within_range(reg, STA2X11_SECR_FVR0, STA2X11_SECR_FVR1); +} -/* Probe for the two platform devices */ -static int sta2x11_sctl_probe(struct platform_device *dev) +static bool sta2x11_scr_writeable_reg(struct device *dev, unsigned int reg) { - struct pci_dev **pdev; - struct sta2x11_mfd *mfd; - struct resource *res; + return false; +} - pdev = dev->dev.platform_data; - mfd = sta2x11_mfd_find(*pdev); - if (!mfd) - return -ENODEV; +static struct regmap_config sta2x11_scr_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .lock = sta2x11_regmap_nolock, + .unlock = sta2x11_regmap_nolock, + .max_register = STA2X11_SECR_FVR1, + .readable_reg = sta2x11_scr_readable_reg, + .writeable_reg = sta2x11_scr_writeable_reg, +}; - res = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (!res) - return -ENOMEM; +static bool sta2x11_apbreg_readable_reg(struct device *dev, unsigned int reg) +{ + /* Two blocks (CAN and MLB, SARAC) 0x100 bytes apart */ + if (reg >= APBREG_BSR_SARAC) + reg -= APBREG_BSR_SARAC; + switch (reg) { + case APBREG_BSR: + case APBREG_PAER: + case APBREG_PWAC: + case APBREG_PRAC: + case APBREG_PCG: + case APBREG_PUR: + case APBREG_EMU_PCG: + return true; + default: + return false; + } +} - if (!request_mem_region(res->start, resource_size(res), - "sta2x11-sctl")) - return -EBUSY; +static bool sta2x11_apbreg_writeable_reg(struct device *dev, unsigned int reg) +{ + if (reg >= APBREG_BSR_SARAC) + reg -= APBREG_BSR_SARAC; + if (!sta2x11_apbreg_readable_reg(dev, reg)) + return false; + return reg != APBREG_PAER; +} - mfd->sctl_regs = ioremap(res->start, resource_size(res)); - if (!mfd->sctl_regs) { - release_mem_region(res->start, resource_size(res)); - return -ENOMEM; +static struct regmap_config sta2x11_apbreg_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .lock = sta2x11_regmap_lock, + .unlock = sta2x11_regmap_unlock, + .max_register = APBREG_EMU_PCG_SARAC, + .readable_reg = sta2x11_apbreg_readable_reg, + .writeable_reg = sta2x11_apbreg_writeable_reg, +}; + +static bool sta2x11_apb_soc_regs_readable_reg(struct device *dev, + unsigned int reg) +{ + return reg <= PCIE_SoC_INT_ROUTER_STATUS3_REG || + __reg_within_range(reg, DMA_IP_CTRL_REG, SPARE3_RESERVED) || + __reg_within_range(reg, MASTER_LOCK_REG, + SYSTEM_CONFIG_STATUS_REG) || + reg == MSP_CLK_CTRL_REG || + __reg_within_range(reg, COMPENSATION_REG1, TEST_CTL_REG); +} + +static bool sta2x11_apb_soc_regs_writeable_reg(struct device *dev, + unsigned int reg) +{ + if (!sta2x11_apb_soc_regs_readable_reg(dev, reg)) + return false; + switch (reg) { + case PCIE_COMMON_CLOCK_CONFIG_0_4_0: + case SYSTEM_CONFIG_STATUS_REG: + case COMPENSATION_REG1: + case PCIE_SoC_INT_ROUTER_STATUS0_REG...PCIE_SoC_INT_ROUTER_STATUS3_REG: + case PCIE_PM_STATUS_0_PORT_0_4...PCIE_PM_STATUS_7_0_EP4: + return false; + default: + return true; } - sctl_regset.base = mfd->sctl_regs; - sta2x11_sctl_debugfs = debugfs_create_regset32("sta2x11-sctl", - S_IFREG | S_IRUGO, - NULL, &sctl_regset); - return 0; } -static int sta2x11_apbreg_probe(struct platform_device *dev) +static struct regmap_config sta2x11_apb_soc_regs_regmap_config = { + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, + .lock = sta2x11_regmap_lock, + .unlock = sta2x11_regmap_unlock, + .max_register = TEST_CTL_REG, + .readable_reg = sta2x11_apb_soc_regs_readable_reg, + .writeable_reg = sta2x11_apb_soc_regs_writeable_reg, +}; + +static struct regmap_config * +sta2x11_mfd_regmap_configs[sta2x11_n_mfd_plat_devs] = { + [sta2x11_sctl] = &sta2x11_sctl_regmap_config, + [sta2x11_apbreg] = &sta2x11_apbreg_regmap_config, + [sta2x11_apb_soc_regs] = &sta2x11_apb_soc_regs_regmap_config, + [sta2x11_scr] = &sta2x11_scr_regmap_config, +}; + +/* Probe for the four platform devices */ + +static int sta2x11_mfd_platform_probe(struct platform_device *dev, + enum sta2x11_mfd_plat_dev index) { struct pci_dev **pdev; struct sta2x11_mfd *mfd; struct resource *res; + const char *name = sta2x11_mfd_names[index]; + struct regmap_config *regmap_config = sta2x11_mfd_regmap_configs[index]; pdev = dev->dev.platform_data; - dev_dbg(&dev->dev, "%s: pdata is %p\n", __func__, pdev); - dev_dbg(&dev->dev, "%s: *pdata is %p\n", __func__, *pdev); - mfd = sta2x11_mfd_find(*pdev); if (!mfd) return -ENODEV; + if (!regmap_config) + return -ENODEV; res = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!res) return -ENOMEM; - if (!request_mem_region(res->start, resource_size(res), - "sta2x11-apbreg")) + if (!request_mem_region(res->start, resource_size(res), name)) return -EBUSY; - mfd->apbreg_regs = ioremap(res->start, resource_size(res)); - if (!mfd->apbreg_regs) { + mfd->regs[index] = ioremap(res->start, resource_size(res)); + if (!mfd->regs[index]) { release_mem_region(res->start, resource_size(res)); return -ENOMEM; } - dev_dbg(&dev->dev, "%s: regbase %p\n", __func__, mfd->apbreg_regs); + regmap_config->lock_arg = &mfd->lock; + /* + No caching, registers could be reached both via regmap and via + void __iomem * + */ + regmap_config->cache_type = REGCACHE_NONE; + mfd->regmap[index] = devm_regmap_init_mmio(&dev->dev, mfd->regs[index], + regmap_config); + WARN_ON(!mfd->regmap[index]); - apbreg_regset.base = mfd->apbreg_regs; - sta2x11_apbreg_debugfs = debugfs_create_regset32("sta2x11-apbreg", - S_IFREG | S_IRUGO, - NULL, &apbreg_regset); return 0; } -/* The two platform drivers */ +static int sta2x11_sctl_probe(struct platform_device *dev) +{ + return sta2x11_mfd_platform_probe(dev, sta2x11_sctl); +} + +static int sta2x11_apbreg_probe(struct platform_device *dev) +{ + return sta2x11_mfd_platform_probe(dev, sta2x11_apbreg); +} + +static int sta2x11_apb_soc_regs_probe(struct platform_device *dev) +{ + return sta2x11_mfd_platform_probe(dev, sta2x11_apb_soc_regs); +} + +static int sta2x11_scr_probe(struct platform_device *dev) +{ + return sta2x11_mfd_platform_probe(dev, sta2x11_scr); +} + +/* The three platform drivers */ static struct platform_driver sta2x11_sctl_platform_driver = { .driver = { - .name = "sta2x11-sctl", + .name = STA2X11_MFD_SCTL_NAME, .owner = THIS_MODULE, }, .probe = sta2x11_sctl_probe, @@ -268,7 +392,7 @@ static int __init sta2x11_sctl_init(void) static struct platform_driver sta2x11_platform_driver = { .driver = { - .name = "sta2x11-apbreg", + .name = STA2X11_MFD_APBREG_NAME, .owner = THIS_MODULE, }, .probe = sta2x11_apbreg_probe, @@ -280,13 +404,44 @@ static int __init sta2x11_apbreg_init(void) return platform_driver_register(&sta2x11_platform_driver); } +static struct platform_driver sta2x11_apb_soc_regs_platform_driver = { + .driver = { + .name = STA2X11_MFD_APB_SOC_REGS_NAME, + .owner = THIS_MODULE, + }, + .probe = sta2x11_apb_soc_regs_probe, +}; + +static int __init sta2x11_apb_soc_regs_init(void) +{ + pr_info("%s\n", __func__); + return platform_driver_register(&sta2x11_apb_soc_regs_platform_driver); +} + +static struct platform_driver sta2x11_scr_platform_driver = { + .driver = { + .name = STA2X11_MFD_SCR_NAME, + .owner = THIS_MODULE, + }, + .probe = sta2x11_scr_probe, +}; + +static int __init sta2x11_scr_init(void) +{ + pr_info("%s\n", __func__); + return platform_driver_register(&sta2x11_scr_platform_driver); +} + + /* - * What follows is the PCI device that hosts the above two pdevs. + * What follows are the PCI devices that host the above pdevs. * Each logic block is 4kB and they are all consecutive: we use this info. */ -/* Bar 0 */ -enum bar0_cells { +/* Mfd 0 device */ + +/* Mfd 0, Bar 0 */ +enum mfd0_bar0_cells { STA2X11_GPIO_0 = 0, STA2X11_GPIO_1, STA2X11_GPIO_2, @@ -295,8 +450,8 @@ enum bar0_cells { STA2X11_SCR, STA2X11_TIME, }; -/* Bar 1 */ -enum bar1_cells { +/* Mfd 0 , Bar 1 */ +enum mfd0_bar1_cells { STA2X11_APBREG = 0, }; #define CELL_4K(_name, _cell) { \ @@ -307,40 +462,71 @@ enum bar1_cells { static const struct resource gpio_resources[] = { { - .name = "sta2x11_gpio", /* 4 consecutive cells, 1 driver */ + /* 4 consecutive cells, 1 driver */ + .name = STA2X11_MFD_GPIO_NAME, .start = 0, .end = (4 * 4096) - 1, .flags = IORESOURCE_MEM, } }; static const struct resource sctl_resources[] = { - CELL_4K("sta2x11-sctl", STA2X11_SCTL), + CELL_4K(STA2X11_MFD_SCTL_NAME, STA2X11_SCTL), }; static const struct resource scr_resources[] = { - CELL_4K("sta2x11-scr", STA2X11_SCR), + CELL_4K(STA2X11_MFD_SCR_NAME, STA2X11_SCR), }; static const struct resource time_resources[] = { - CELL_4K("sta2x11-time", STA2X11_TIME), + CELL_4K(STA2X11_MFD_TIME_NAME, STA2X11_TIME), }; static const struct resource apbreg_resources[] = { - CELL_4K("sta2x11-apbreg", STA2X11_APBREG), + CELL_4K(STA2X11_MFD_APBREG_NAME, STA2X11_APBREG), }; #define DEV(_name, _r) \ { .name = _name, .num_resources = ARRAY_SIZE(_r), .resources = _r, } -static struct mfd_cell sta2x11_mfd_bar0[] = { - DEV("sta2x11-gpio", gpio_resources), /* offset 0: we add pdata later */ - DEV("sta2x11-sctl", sctl_resources), - DEV("sta2x11-scr", scr_resources), - DEV("sta2x11-time", time_resources), +static struct mfd_cell sta2x11_mfd0_bar0[] = { + /* offset 0: we add pdata later */ + DEV(STA2X11_MFD_GPIO_NAME, gpio_resources), + DEV(STA2X11_MFD_SCTL_NAME, sctl_resources), + DEV(STA2X11_MFD_SCR_NAME, scr_resources), + DEV(STA2X11_MFD_TIME_NAME, time_resources), }; -static struct mfd_cell sta2x11_mfd_bar1[] = { - DEV("sta2x11-apbreg", apbreg_resources), +static struct mfd_cell sta2x11_mfd0_bar1[] = { + DEV(STA2X11_MFD_APBREG_NAME, apbreg_resources), }; +/* Mfd 1 devices */ + +/* Mfd 1, Bar 0 */ +enum mfd1_bar0_cells { + STA2X11_VIC = 0, +}; + +/* Mfd 1, Bar 1 */ +enum mfd1_bar1_cells { + STA2X11_APB_SOC_REGS = 0, +}; + +static const __devinitconst struct resource vic_resources[] = { + CELL_4K(STA2X11_MFD_VIC_NAME, STA2X11_VIC), +}; + +static const __devinitconst struct resource apb_soc_regs_resources[] = { + CELL_4K(STA2X11_MFD_APB_SOC_REGS_NAME, STA2X11_APB_SOC_REGS), +}; + +static __devinitdata struct mfd_cell sta2x11_mfd1_bar0[] = { + DEV(STA2X11_MFD_VIC_NAME, vic_resources), +}; + +static __devinitdata struct mfd_cell sta2x11_mfd1_bar1[] = { + DEV(STA2X11_MFD_APB_SOC_REGS_NAME, apb_soc_regs_resources), +}; + + static int sta2x11_mfd_suspend(struct pci_dev *pdev, pm_message_t state) { pci_save_state(pdev); @@ -363,11 +549,63 @@ static int sta2x11_mfd_resume(struct pci_dev *pdev) return 0; } +struct sta2x11_mfd_bar_setup_data { + struct mfd_cell *cells; + int ncells; +}; + +struct sta2x11_mfd_setup_data { + struct sta2x11_mfd_bar_setup_data bars[2]; +}; + +#define STA2X11_MFD0 0 +#define STA2X11_MFD1 1 + +static struct sta2x11_mfd_setup_data mfd_setup_data[] = { + /* Mfd 0: gpio, sctl, scr, timers / apbregs */ + [STA2X11_MFD0] = { + .bars = { + [0] = { + .cells = sta2x11_mfd0_bar0, + .ncells = ARRAY_SIZE(sta2x11_mfd0_bar0), + }, + [1] = { + .cells = sta2x11_mfd0_bar1, + .ncells = ARRAY_SIZE(sta2x11_mfd0_bar1), + }, + }, + }, + /* Mfd 1: vic / apb-soc-regs */ + [STA2X11_MFD1] = { + .bars = { + [0] = { + .cells = sta2x11_mfd1_bar0, + .ncells = ARRAY_SIZE(sta2x11_mfd1_bar0), + }, + [1] = { + .cells = sta2x11_mfd1_bar1, + .ncells = ARRAY_SIZE(sta2x11_mfd1_bar1), + }, + }, + }, +}; + +static void sta2x11_mfd_setup(struct pci_dev *pdev, + struct sta2x11_mfd_setup_data *sd) +{ + int i, j; + for (i = 0; i < ARRAY_SIZE(sd->bars); i++) + for (j = 0; j < sd->bars[i].ncells; j++) { + sd->bars[i].cells[j].pdata_size = sizeof(pdev); + sd->bars[i].cells[j].platform_data = &pdev; + } +} + static int sta2x11_mfd_probe(struct pci_dev *pdev, - const struct pci_device_id *pci_id) + const struct pci_device_id *pci_id) { int err, i; - struct sta2x11_gpio_pdata *gpio_data; + struct sta2x11_mfd_setup_data *setup_data; dev_info(&pdev->dev, "%s\n", __func__); @@ -381,46 +619,29 @@ static int sta2x11_mfd_probe(struct pci_dev *pdev, if (err) dev_info(&pdev->dev, "Enable msi failed\n"); - /* Read gpio config data as pci device's platform data */ - gpio_data = dev_get_platdata(&pdev->dev); - if (!gpio_data) - dev_warn(&pdev->dev, "no gpio configuration\n"); - - dev_dbg(&pdev->dev, "%s, gpio_data = %p (%p)\n", __func__, - gpio_data, &gpio_data); - dev_dbg(&pdev->dev, "%s, pdev = %p (%p)\n", __func__, - pdev, &pdev); + setup_data = pci_id->device == PCI_DEVICE_ID_STMICRO_GPIO ? + &mfd_setup_data[STA2X11_MFD0] : + &mfd_setup_data[STA2X11_MFD1]; /* platform data is the pci device for all of them */ - for (i = 0; i < ARRAY_SIZE(sta2x11_mfd_bar0); i++) { - sta2x11_mfd_bar0[i].pdata_size = sizeof(pdev); - sta2x11_mfd_bar0[i].platform_data = &pdev; - } - sta2x11_mfd_bar1[0].pdata_size = sizeof(pdev); - sta2x11_mfd_bar1[0].platform_data = &pdev; + sta2x11_mfd_setup(pdev, setup_data); /* Record this pdev before mfd_add_devices: their probe looks for it */ - sta2x11_mfd_add(pdev, GFP_ATOMIC); - - - err = mfd_add_devices(&pdev->dev, -1, - sta2x11_mfd_bar0, - ARRAY_SIZE(sta2x11_mfd_bar0), - &pdev->resource[0], - 0, NULL); - if (err) { - dev_err(&pdev->dev, "mfd_add_devices[0] failed: %d\n", err); - goto err_disable; - } - - err = mfd_add_devices(&pdev->dev, -1, - sta2x11_mfd_bar1, - ARRAY_SIZE(sta2x11_mfd_bar1), - &pdev->resource[1], - 0, NULL); - if (err) { - dev_err(&pdev->dev, "mfd_add_devices[1] failed: %d\n", err); - goto err_disable; + if (!sta2x11_mfd_find(pdev)) + sta2x11_mfd_add(pdev, GFP_ATOMIC); + + /* Just 2 bars for all mfd's at present */ + for (i = 0; i < 2; i++) { + err = mfd_add_devices(&pdev->dev, -1, + setup_data->bars[i].cells, + setup_data->bars[i].ncells, + &pdev->resource[i], + 0, NULL); + if (err) { + dev_err(&pdev->dev, + "mfd_add_devices[%d] failed: %d\n", i, err); + goto err_disable; + } } return 0; @@ -434,6 +655,7 @@ err_disable: static DEFINE_PCI_DEVICE_TABLE(sta2x11_mfd_tbl) = { {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_GPIO)}, + {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_VIC)}, {0,}, }; @@ -459,6 +681,8 @@ static int __init sta2x11_mfd_init(void) */ subsys_initcall(sta2x11_apbreg_init); subsys_initcall(sta2x11_sctl_init); +subsys_initcall(sta2x11_apb_soc_regs_init); +subsys_initcall(sta2x11_scr_init); rootfs_initcall(sta2x11_mfd_init); MODULE_LICENSE("GPL v2"); diff --git a/drivers/mfd/stmpe-i2c.c b/drivers/mfd/stmpe-i2c.c index 36df18778029..fd5fcb630685 100644 --- a/drivers/mfd/stmpe-i2c.c +++ b/drivers/mfd/stmpe-i2c.c @@ -82,11 +82,13 @@ static const struct i2c_device_id stmpe_i2c_id[] = { MODULE_DEVICE_TABLE(i2c, stmpe_id); static struct i2c_driver stmpe_i2c_driver = { - .driver.name = "stmpe-i2c", - .driver.owner = THIS_MODULE, + .driver = { + .name = "stmpe-i2c", + .owner = THIS_MODULE, #ifdef CONFIG_PM - .driver.pm = &stmpe_dev_pm_ops, + .pm = &stmpe_dev_pm_ops, #endif + }, .probe = stmpe_i2c_probe, .remove = stmpe_i2c_remove, .id_table = stmpe_i2c_id, diff --git a/drivers/mfd/stmpe.c b/drivers/mfd/stmpe.c index 79e88d1fd99a..19636199d7a5 100644 --- a/drivers/mfd/stmpe.c +++ b/drivers/mfd/stmpe.c @@ -7,11 +7,15 @@ * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson */ +#include <linux/err.h> #include <linux/gpio.h> #include <linux/export.h> #include <linux/kernel.h> #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/irqdomain.h> +#include <linux/of.h> +#include <linux/of_gpio.h> #include <linux/pm.h> #include <linux/slab.h> #include <linux/mfd/core.h> @@ -312,14 +316,10 @@ static struct mfd_cell stmpe_gpio_cell_noirq = { static struct resource stmpe_keypad_resources[] = { { .name = "KEYPAD", - .start = 0, - .end = 0, .flags = IORESOURCE_IRQ, }, { .name = "KEYPAD_OVER", - .start = 1, - .end = 1, .flags = IORESOURCE_IRQ, }, }; @@ -399,14 +399,10 @@ static struct stmpe_variant_info stmpe801_noirq = { static struct resource stmpe_ts_resources[] = { { .name = "TOUCH_DET", - .start = 0, - .end = 0, .flags = IORESOURCE_IRQ, }, { .name = "FIFO_TH", - .start = 1, - .end = 1, .flags = IORESOURCE_IRQ, }, }; @@ -528,12 +524,12 @@ static const u8 stmpe1601_regs[] = { static struct stmpe_variant_block stmpe1601_blocks[] = { { .cell = &stmpe_gpio_cell, - .irq = STMPE24XX_IRQ_GPIOC, + .irq = STMPE1601_IRQ_GPIOC, .block = STMPE_BLOCK_GPIO, }, { .cell = &stmpe_keypad_cell, - .irq = STMPE24XX_IRQ_KEYPAD, + .irq = STMPE1601_IRQ_KEYPAD, .block = STMPE_BLOCK_KEYPAD, }, }; @@ -767,7 +763,9 @@ static irqreturn_t stmpe_irq(int irq, void *data) int i; if (variant->id_val == STMPE801_ID) { - handle_nested_irq(stmpe->irq_base); + int base = irq_create_mapping(stmpe->domain, 0); + + handle_nested_irq(base); return IRQ_HANDLED; } @@ -788,8 +786,9 @@ static irqreturn_t stmpe_irq(int irq, void *data) while (status) { int bit = __ffs(status); int line = bank * 8 + bit; + int nestedirq = irq_create_mapping(stmpe->domain, line); - handle_nested_irq(stmpe->irq_base + line); + handle_nested_irq(nestedirq); status &= ~(1 << bit); } @@ -830,7 +829,7 @@ static void stmpe_irq_sync_unlock(struct irq_data *data) static void stmpe_irq_mask(struct irq_data *data) { struct stmpe *stmpe = irq_data_get_irq_chip_data(data); - int offset = data->irq - stmpe->irq_base; + int offset = data->hwirq; int regoffset = offset / 8; int mask = 1 << (offset % 8); @@ -840,7 +839,7 @@ static void stmpe_irq_mask(struct irq_data *data) static void stmpe_irq_unmask(struct irq_data *data) { struct stmpe *stmpe = irq_data_get_irq_chip_data(data); - int offset = data->irq - stmpe->irq_base; + int offset = data->hwirq; int regoffset = offset / 8; int mask = 1 << (offset % 8); @@ -855,43 +854,59 @@ static struct irq_chip stmpe_irq_chip = { .irq_unmask = stmpe_irq_unmask, }; -static int __devinit stmpe_irq_init(struct stmpe *stmpe) +static int stmpe_irq_map(struct irq_domain *d, unsigned int virq, + irq_hw_number_t hwirq) { + struct stmpe *stmpe = d->host_data; struct irq_chip *chip = NULL; - int num_irqs = stmpe->variant->num_irqs; - int base = stmpe->irq_base; - int irq; if (stmpe->variant->id_val != STMPE801_ID) chip = &stmpe_irq_chip; - for (irq = base; irq < base + num_irqs; irq++) { - irq_set_chip_data(irq, stmpe); - irq_set_chip_and_handler(irq, chip, handle_edge_irq); - irq_set_nested_thread(irq, 1); + irq_set_chip_data(virq, stmpe); + irq_set_chip_and_handler(virq, chip, handle_edge_irq); + irq_set_nested_thread(virq, 1); #ifdef CONFIG_ARM - set_irq_flags(irq, IRQF_VALID); + set_irq_flags(virq, IRQF_VALID); #else - irq_set_noprobe(irq); + irq_set_noprobe(virq); #endif - } return 0; } -static void stmpe_irq_remove(struct stmpe *stmpe) +static void stmpe_irq_unmap(struct irq_domain *d, unsigned int virq) { - int num_irqs = stmpe->variant->num_irqs; - int base = stmpe->irq_base; - int irq; - - for (irq = base; irq < base + num_irqs; irq++) { #ifdef CONFIG_ARM - set_irq_flags(irq, 0); + set_irq_flags(virq, 0); #endif - irq_set_chip_and_handler(irq, NULL, NULL); - irq_set_chip_data(irq, NULL); + irq_set_chip_and_handler(virq, NULL, NULL); + irq_set_chip_data(virq, NULL); +} + +static struct irq_domain_ops stmpe_irq_ops = { + .map = stmpe_irq_map, + .unmap = stmpe_irq_unmap, + .xlate = irq_domain_xlate_twocell, +}; + +static int __devinit stmpe_irq_init(struct stmpe *stmpe, + struct device_node *np) +{ + int base = 0; + int num_irqs = stmpe->variant->num_irqs; + + if (!np) + base = stmpe->irq_base; + + stmpe->domain = irq_domain_add_simple(np, num_irqs, base, + &stmpe_irq_ops, stmpe); + if (!stmpe->domain) { + dev_err(stmpe->dev, "Failed to create irqdomain\n"); + return -ENOSYS; } + + return 0; } static int __devinit stmpe_chip_init(struct stmpe *stmpe) @@ -942,13 +957,6 @@ static int __devinit stmpe_chip_init(struct stmpe *stmpe) else icr |= STMPE_ICR_LSB_HIGH; } - - if (stmpe->pdata->irq_invert_polarity) { - if (id == STMPE801_ID) - icr ^= STMPE801_REG_SYS_CTRL_INT_HI; - else - icr ^= STMPE_ICR_LSB_HIGH; - } } if (stmpe->pdata->autosleep) { @@ -961,10 +969,10 @@ static int __devinit stmpe_chip_init(struct stmpe *stmpe) } static int __devinit stmpe_add_device(struct stmpe *stmpe, - struct mfd_cell *cell, int irq) + struct mfd_cell *cell) { return mfd_add_devices(stmpe->dev, stmpe->pdata->id, cell, 1, - NULL, stmpe->irq_base + irq, NULL); + NULL, stmpe->irq_base, stmpe->domain); } static int __devinit stmpe_devices_init(struct stmpe *stmpe) @@ -972,7 +980,7 @@ static int __devinit stmpe_devices_init(struct stmpe *stmpe) struct stmpe_variant_info *variant = stmpe->variant; unsigned int platform_blocks = stmpe->pdata->blocks; int ret = -EINVAL; - int i; + int i, j; for (i = 0; i < variant->num_blocks; i++) { struct stmpe_variant_block *block = &variant->blocks[i]; @@ -980,8 +988,17 @@ static int __devinit stmpe_devices_init(struct stmpe *stmpe) if (!(platform_blocks & block->block)) continue; + for (j = 0; j < block->cell->num_resources; j++) { + struct resource *res = + (struct resource *) &block->cell->resources[j]; + + /* Dynamically fill in a variant's IRQ. */ + if (res->flags & IORESOURCE_IRQ) + res->start = res->end = block->irq + j; + } + platform_blocks &= ~block->block; - ret = stmpe_add_device(stmpe, block->cell, block->irq); + ret = stmpe_add_device(stmpe, block->cell); if (ret) return ret; } @@ -994,17 +1011,56 @@ static int __devinit stmpe_devices_init(struct stmpe *stmpe) return ret; } +void __devinit stmpe_of_probe(struct stmpe_platform_data *pdata, + struct device_node *np) +{ + struct device_node *child; + + pdata->id = -1; + pdata->irq_trigger = IRQF_TRIGGER_NONE; + + of_property_read_u32(np, "st,autosleep-timeout", + &pdata->autosleep_timeout); + + pdata->autosleep = (pdata->autosleep_timeout) ? true : false; + + for_each_child_of_node(np, child) { + if (!strcmp(child->name, "stmpe_gpio")) { + pdata->blocks |= STMPE_BLOCK_GPIO; + } else if (!strcmp(child->name, "stmpe_keypad")) { + pdata->blocks |= STMPE_BLOCK_KEYPAD; + } else if (!strcmp(child->name, "stmpe_touchscreen")) { + pdata->blocks |= STMPE_BLOCK_TOUCHSCREEN; + } else if (!strcmp(child->name, "stmpe_adc")) { + pdata->blocks |= STMPE_BLOCK_ADC; + } else if (!strcmp(child->name, "stmpe_pwm")) { + pdata->blocks |= STMPE_BLOCK_PWM; + } else if (!strcmp(child->name, "stmpe_rotator")) { + pdata->blocks |= STMPE_BLOCK_ROTATOR; + } + } +} + /* Called from client specific probe routines */ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) { struct stmpe_platform_data *pdata = dev_get_platdata(ci->dev); + struct device_node *np = ci->dev->of_node; struct stmpe *stmpe; int ret; - if (!pdata) - return -EINVAL; + if (!pdata) { + if (!np) + return -EINVAL; + + pdata = devm_kzalloc(ci->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + stmpe_of_probe(pdata, np); + } - stmpe = kzalloc(sizeof(struct stmpe), GFP_KERNEL); + stmpe = devm_kzalloc(ci->dev, sizeof(struct stmpe), GFP_KERNEL); if (!stmpe) return -ENOMEM; @@ -1026,11 +1082,12 @@ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) ci->init(stmpe); if (pdata->irq_over_gpio) { - ret = gpio_request_one(pdata->irq_gpio, GPIOF_DIR_IN, "stmpe"); + ret = devm_gpio_request_one(ci->dev, pdata->irq_gpio, + GPIOF_DIR_IN, "stmpe"); if (ret) { dev_err(stmpe->dev, "failed to request IRQ GPIO: %d\n", ret); - goto out_free; + return ret; } stmpe->irq = gpio_to_irq(pdata->irq_gpio); @@ -1047,51 +1104,40 @@ int __devinit stmpe_probe(struct stmpe_client_info *ci, int partnum) dev_err(stmpe->dev, "%s does not support no-irq mode!\n", stmpe->variant->name); - ret = -ENODEV; - goto free_gpio; + return -ENODEV; } stmpe->variant = stmpe_noirq_variant_info[stmpe->partnum]; + } else if (pdata->irq_trigger == IRQF_TRIGGER_NONE) { + pdata->irq_trigger = + irqd_get_trigger_type(irq_get_irq_data(stmpe->irq)); } ret = stmpe_chip_init(stmpe); if (ret) - goto free_gpio; + return ret; if (stmpe->irq >= 0) { - ret = stmpe_irq_init(stmpe); + ret = stmpe_irq_init(stmpe, np); if (ret) - goto free_gpio; + return ret; - ret = request_threaded_irq(stmpe->irq, NULL, stmpe_irq, - pdata->irq_trigger | IRQF_ONESHOT, + ret = devm_request_threaded_irq(ci->dev, stmpe->irq, NULL, + stmpe_irq, pdata->irq_trigger | IRQF_ONESHOT, "stmpe", stmpe); if (ret) { dev_err(stmpe->dev, "failed to request IRQ: %d\n", ret); - goto out_removeirq; + return ret; } } ret = stmpe_devices_init(stmpe); - if (ret) { - dev_err(stmpe->dev, "failed to add children\n"); - goto out_removedevs; - } - - return 0; + if (!ret) + return 0; -out_removedevs: + dev_err(stmpe->dev, "failed to add children\n"); mfd_remove_devices(stmpe->dev); - if (stmpe->irq >= 0) - free_irq(stmpe->irq, stmpe); -out_removeirq: - if (stmpe->irq >= 0) - stmpe_irq_remove(stmpe); -free_gpio: - if (pdata->irq_over_gpio) - gpio_free(pdata->irq_gpio); -out_free: - kfree(stmpe); + return ret; } @@ -1099,16 +1145,6 @@ int stmpe_remove(struct stmpe *stmpe) { mfd_remove_devices(stmpe->dev); - if (stmpe->irq >= 0) { - free_irq(stmpe->irq, stmpe); - stmpe_irq_remove(stmpe); - } - - if (stmpe->pdata->irq_over_gpio) - gpio_free(stmpe->pdata->irq_gpio); - - kfree(stmpe); - return 0; } diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c new file mode 100644 index 000000000000..8ca3bf023fb2 --- /dev/null +++ b/drivers/mfd/ti_am335x_tscadc.c @@ -0,0 +1,274 @@ +/* + * TI Touch Screen / ADC MFD driver + * + * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/regmap.h> +#include <linux/mfd/core.h> +#include <linux/pm_runtime.h> + +#include <linux/mfd/ti_am335x_tscadc.h> +#include <linux/input/ti_am335x_tsc.h> +#include <linux/platform_data/ti_am335x_adc.h> + +static unsigned int tscadc_readl(struct ti_tscadc_dev *tsadc, unsigned int reg) +{ + unsigned int val; + + regmap_read(tsadc->regmap_tscadc, reg, &val); + return val; +} + +static void tscadc_writel(struct ti_tscadc_dev *tsadc, unsigned int reg, + unsigned int val) +{ + regmap_write(tsadc->regmap_tscadc, reg, val); +} + +static const struct regmap_config tscadc_regmap_config = { + .name = "ti_tscadc", + .reg_bits = 32, + .reg_stride = 4, + .val_bits = 32, +}; + +static void tscadc_idle_config(struct ti_tscadc_dev *config) +{ + unsigned int idleconfig; + + idleconfig = STEPCONFIG_YNN | STEPCONFIG_INM_ADCREFM | + STEPCONFIG_INP_ADCREFM | STEPCONFIG_YPN; + + tscadc_writel(config, REG_IDLECONFIG, idleconfig); +} + +static int __devinit ti_tscadc_probe(struct platform_device *pdev) +{ + struct ti_tscadc_dev *tscadc; + struct resource *res; + struct clk *clk; + struct mfd_tscadc_board *pdata = pdev->dev.platform_data; + struct mfd_cell *cell; + int err, ctrl; + int clk_value, clock_rate; + int tsc_wires, adc_channels = 0, total_channels; + + if (!pdata) { + dev_err(&pdev->dev, "Could not find platform data\n"); + return -EINVAL; + } + + if (pdata->adc_init) + adc_channels = pdata->adc_init->adc_channels; + + tsc_wires = pdata->tsc_init->wires; + total_channels = tsc_wires + adc_channels; + + if (total_channels > 8) { + dev_err(&pdev->dev, "Number of i/p channels more than 8\n"); + return -EINVAL; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "no memory resource defined.\n"); + return -EINVAL; + } + + /* Allocate memory for device */ + tscadc = devm_kzalloc(&pdev->dev, + sizeof(struct ti_tscadc_dev), GFP_KERNEL); + if (!tscadc) { + dev_err(&pdev->dev, "failed to allocate memory.\n"); + return -ENOMEM; + } + tscadc->dev = &pdev->dev; + + err = platform_get_irq(pdev, 0); + if (err < 0) { + dev_err(&pdev->dev, "no irq ID is specified.\n"); + goto ret; + } else + tscadc->irq = err; + + res = devm_request_mem_region(&pdev->dev, + res->start, resource_size(res), pdev->name); + if (!res) { + dev_err(&pdev->dev, "failed to reserve registers.\n"); + return -EBUSY; + } + + tscadc->tscadc_base = devm_ioremap(&pdev->dev, + res->start, resource_size(res)); + if (!tscadc->tscadc_base) { + dev_err(&pdev->dev, "failed to map registers.\n"); + return -ENOMEM; + } + + tscadc->regmap_tscadc = devm_regmap_init_mmio(&pdev->dev, + tscadc->tscadc_base, &tscadc_regmap_config); + if (IS_ERR(tscadc->regmap_tscadc)) { + dev_err(&pdev->dev, "regmap init failed\n"); + err = PTR_ERR(tscadc->regmap_tscadc); + goto ret; + } + + pm_runtime_enable(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); + + /* + * The TSC_ADC_Subsystem has 2 clock domains + * OCP_CLK and ADC_CLK. + * The ADC clock is expected to run at target of 3MHz, + * and expected to capture 12-bit data at a rate of 200 KSPS. + * The TSC_ADC_SS controller design assumes the OCP clock is + * at least 6x faster than the ADC clock. + */ + clk = clk_get(&pdev->dev, "adc_tsc_fck"); + if (IS_ERR(clk)) { + dev_err(&pdev->dev, "failed to get TSC fck\n"); + err = PTR_ERR(clk); + goto err_disable_clk; + } + clock_rate = clk_get_rate(clk); + clk_put(clk); + clk_value = clock_rate / ADC_CLK; + if (clk_value < MAX_CLK_DIV) { + dev_err(&pdev->dev, "clock input less than min clock requirement\n"); + err = -EINVAL; + goto err_disable_clk; + } + /* TSCADC_CLKDIV needs to be configured to the value minus 1 */ + clk_value = clk_value - 1; + tscadc_writel(tscadc, REG_CLKDIV, clk_value); + + /* Set the control register bits */ + ctrl = CNTRLREG_STEPCONFIGWRT | + CNTRLREG_TSCENB | + CNTRLREG_STEPID | + CNTRLREG_4WIRE; + tscadc_writel(tscadc, REG_CTRL, ctrl); + + /* Set register bits for Idle Config Mode */ + tscadc_idle_config(tscadc); + + /* Enable the TSC module enable bit */ + ctrl = tscadc_readl(tscadc, REG_CTRL); + ctrl |= CNTRLREG_TSCSSENB; + tscadc_writel(tscadc, REG_CTRL, ctrl); + + /* TSC Cell */ + cell = &tscadc->cells[TSC_CELL]; + cell->name = "tsc"; + cell->platform_data = tscadc; + cell->pdata_size = sizeof(*tscadc); + + /* ADC Cell */ + cell = &tscadc->cells[ADC_CELL]; + cell->name = "tiadc"; + cell->platform_data = tscadc; + cell->pdata_size = sizeof(*tscadc); + + err = mfd_add_devices(&pdev->dev, pdev->id, tscadc->cells, + TSCADC_CELLS, NULL, 0, NULL); + if (err < 0) + goto err_disable_clk; + + device_init_wakeup(&pdev->dev, true); + platform_set_drvdata(pdev, tscadc); + + return 0; + +err_disable_clk: + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); +ret: + return err; +} + +static int __devexit ti_tscadc_remove(struct platform_device *pdev) +{ + struct ti_tscadc_dev *tscadc = platform_get_drvdata(pdev); + + tscadc_writel(tscadc, REG_SE, 0x00); + + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + + mfd_remove_devices(tscadc->dev); + + return 0; +} + +#ifdef CONFIG_PM +static int tscadc_suspend(struct device *dev) +{ + struct ti_tscadc_dev *tscadc_dev = dev_get_drvdata(dev); + + tscadc_writel(tscadc_dev, REG_SE, 0x00); + pm_runtime_put_sync(dev); + + return 0; +} + +static int tscadc_resume(struct device *dev) +{ + struct ti_tscadc_dev *tscadc_dev = dev_get_drvdata(dev); + unsigned int restore, ctrl; + + pm_runtime_get_sync(dev); + + /* context restore */ + ctrl = CNTRLREG_STEPCONFIGWRT | CNTRLREG_TSCENB | + CNTRLREG_STEPID | CNTRLREG_4WIRE; + tscadc_writel(tscadc_dev, REG_CTRL, ctrl); + tscadc_idle_config(tscadc_dev); + tscadc_writel(tscadc_dev, REG_SE, STPENB_STEPENB); + restore = tscadc_readl(tscadc_dev, REG_CTRL); + tscadc_writel(tscadc_dev, REG_CTRL, + (restore | CNTRLREG_TSCSSENB)); + + return 0; +} + +static const struct dev_pm_ops tscadc_pm_ops = { + .suspend = tscadc_suspend, + .resume = tscadc_resume, +}; +#define TSCADC_PM_OPS (&tscadc_pm_ops) +#else +#define TSCADC_PM_OPS NULL +#endif + +static struct platform_driver ti_tscadc_driver = { + .driver = { + .name = "ti_tscadc", + .owner = THIS_MODULE, + .pm = TSCADC_PM_OPS, + }, + .probe = ti_tscadc_probe, + .remove = __devexit_p(ti_tscadc_remove), + +}; + +module_platform_driver(ti_tscadc_driver); + +MODULE_DESCRIPTION("TI touchscreen / ADC MFD controller driver"); +MODULE_AUTHOR("Rachna Patil <rachna@ti.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c index 1b203499c744..409afa23d5dc 100644 --- a/drivers/mfd/tps6507x.c +++ b/drivers/mfd/tps6507x.c @@ -86,9 +86,9 @@ static int tps6507x_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct tps6507x_dev *tps6507x; - int ret = 0; - tps6507x = kzalloc(sizeof(struct tps6507x_dev), GFP_KERNEL); + tps6507x = devm_kzalloc(&i2c->dev, sizeof(struct tps6507x_dev), + GFP_KERNEL); if (tps6507x == NULL) return -ENOMEM; @@ -98,19 +98,8 @@ static int tps6507x_i2c_probe(struct i2c_client *i2c, tps6507x->read_dev = tps6507x_i2c_read_device; tps6507x->write_dev = tps6507x_i2c_write_device; - ret = mfd_add_devices(tps6507x->dev, -1, - tps6507x_devs, ARRAY_SIZE(tps6507x_devs), - NULL, 0, NULL); - - if (ret < 0) - goto err; - - return ret; - -err: - mfd_remove_devices(tps6507x->dev); - kfree(tps6507x); - return ret; + return mfd_add_devices(tps6507x->dev, -1, tps6507x_devs, + ARRAY_SIZE(tps6507x_devs), NULL, 0, NULL); } static int tps6507x_i2c_remove(struct i2c_client *i2c) @@ -118,8 +107,6 @@ static int tps6507x_i2c_remove(struct i2c_client *i2c) struct tps6507x_dev *tps6507x = i2c_get_clientdata(i2c); mfd_remove_devices(tps6507x->dev); - kfree(tps6507x); - return 0; } diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c index 382a857b0dde..8d12a8e00d9c 100644 --- a/drivers/mfd/tps65090.c +++ b/drivers/mfd/tps65090.c @@ -25,7 +25,6 @@ #include <linux/i2c.h> #include <linux/mfd/core.h> #include <linux/mfd/tps65090.h> -#include <linux/regmap.h> #include <linux/err.h> #define NUM_INT_REG 2 @@ -39,204 +38,102 @@ #define TPS65090_INT_MSK 0x2 #define TPS65090_INT_MSK2 0x3 -struct tps65090_irq_data { - u8 mask_reg; - u8 mask_pos; -}; - -#define TPS65090_IRQ(_reg, _mask_pos) \ - { \ - .mask_reg = (_reg), \ - .mask_pos = (_mask_pos), \ - } - -static const struct tps65090_irq_data tps65090_irqs[] = { - [0] = TPS65090_IRQ(0, 0), - [1] = TPS65090_IRQ(0, 1), - [2] = TPS65090_IRQ(0, 2), - [3] = TPS65090_IRQ(0, 3), - [4] = TPS65090_IRQ(0, 4), - [5] = TPS65090_IRQ(0, 5), - [6] = TPS65090_IRQ(0, 6), - [7] = TPS65090_IRQ(0, 7), - [8] = TPS65090_IRQ(1, 0), - [9] = TPS65090_IRQ(1, 1), - [10] = TPS65090_IRQ(1, 2), - [11] = TPS65090_IRQ(1, 3), - [12] = TPS65090_IRQ(1, 4), - [13] = TPS65090_IRQ(1, 5), - [14] = TPS65090_IRQ(1, 6), - [15] = TPS65090_IRQ(1, 7), -}; +#define TPS65090_INT1_MASK_VAC_STATUS_CHANGE 1 +#define TPS65090_INT1_MASK_VSYS_STATUS_CHANGE 2 +#define TPS65090_INT1_MASK_BAT_STATUS_CHANGE 3 +#define TPS65090_INT1_MASK_CHARGING_STATUS_CHANGE 4 +#define TPS65090_INT1_MASK_CHARGING_COMPLETE 5 +#define TPS65090_INT1_MASK_OVERLOAD_DCDC1 6 +#define TPS65090_INT1_MASK_OVERLOAD_DCDC2 7 +#define TPS65090_INT2_MASK_OVERLOAD_DCDC3 0 +#define TPS65090_INT2_MASK_OVERLOAD_FET1 1 +#define TPS65090_INT2_MASK_OVERLOAD_FET2 2 +#define TPS65090_INT2_MASK_OVERLOAD_FET3 3 +#define TPS65090_INT2_MASK_OVERLOAD_FET4 4 +#define TPS65090_INT2_MASK_OVERLOAD_FET5 5 +#define TPS65090_INT2_MASK_OVERLOAD_FET6 6 +#define TPS65090_INT2_MASK_OVERLOAD_FET7 7 static struct mfd_cell tps65090s[] = { { .name = "tps65090-pmic", }, { - .name = "tps65090-regulator", + .name = "tps65090-charger", }, }; -int tps65090_write(struct device *dev, int reg, uint8_t val) -{ - struct tps65090 *tps = dev_get_drvdata(dev); - return regmap_write(tps->rmap, reg, val); -} -EXPORT_SYMBOL_GPL(tps65090_write); - -int tps65090_read(struct device *dev, int reg, uint8_t *val) -{ - struct tps65090 *tps = dev_get_drvdata(dev); - unsigned int temp_val; - int ret; - ret = regmap_read(tps->rmap, reg, &temp_val); - if (!ret) - *val = temp_val; - return ret; -} -EXPORT_SYMBOL_GPL(tps65090_read); - -int tps65090_set_bits(struct device *dev, int reg, uint8_t bit_num) -{ - struct tps65090 *tps = dev_get_drvdata(dev); - return regmap_update_bits(tps->rmap, reg, BIT(bit_num), ~0u); -} -EXPORT_SYMBOL_GPL(tps65090_set_bits); - -int tps65090_clr_bits(struct device *dev, int reg, uint8_t bit_num) -{ - struct tps65090 *tps = dev_get_drvdata(dev); - return regmap_update_bits(tps->rmap, reg, BIT(bit_num), 0u); -} -EXPORT_SYMBOL_GPL(tps65090_clr_bits); - -static void tps65090_irq_lock(struct irq_data *data) -{ - struct tps65090 *tps65090 = irq_data_get_irq_chip_data(data); - - mutex_lock(&tps65090->irq_lock); -} - -static void tps65090_irq_mask(struct irq_data *irq_data) -{ - struct tps65090 *tps65090 = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->hwirq; - const struct tps65090_irq_data *data = &tps65090_irqs[__irq]; - - tps65090_set_bits(tps65090->dev, (TPS65090_INT_MSK + data->mask_reg), - data->mask_pos); -} - -static void tps65090_irq_unmask(struct irq_data *irq_data) -{ - struct tps65090 *tps65090 = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->irq - tps65090->irq_base; - const struct tps65090_irq_data *data = &tps65090_irqs[__irq]; - - tps65090_clr_bits(tps65090->dev, (TPS65090_INT_MSK + data->mask_reg), - data->mask_pos); -} - -static void tps65090_irq_sync_unlock(struct irq_data *data) -{ - struct tps65090 *tps65090 = irq_data_get_irq_chip_data(data); - - mutex_unlock(&tps65090->irq_lock); -} - -static irqreturn_t tps65090_irq(int irq, void *data) -{ - struct tps65090 *tps65090 = data; - int ret = 0; - u8 status, mask; - unsigned long int acks = 0; - int i; - - for (i = 0; i < NUM_INT_REG; i++) { - ret = tps65090_read(tps65090->dev, TPS65090_INT_MSK + i, &mask); - if (ret < 0) { - dev_err(tps65090->dev, - "failed to read mask reg [addr:%d]\n", - TPS65090_INT_MSK + i); - return IRQ_NONE; - } - ret = tps65090_read(tps65090->dev, TPS65090_INT_STS + i, - &status); - if (ret < 0) { - dev_err(tps65090->dev, - "failed to read status reg [addr:%d]\n", - TPS65090_INT_STS + i); - return IRQ_NONE; - } - if (status) { - /* Ack only those interrupts which are not masked */ - status &= (~mask); - ret = tps65090_write(tps65090->dev, - TPS65090_INT_STS + i, status); - if (ret < 0) { - dev_err(tps65090->dev, - "failed to write interrupt status\n"); - return IRQ_NONE; - } - acks |= (status << (i * 8)); - } - } - - for_each_set_bit(i, &acks, ARRAY_SIZE(tps65090_irqs)) - handle_nested_irq(tps65090->irq_base + i); - return acks ? IRQ_HANDLED : IRQ_NONE; -} - -static int tps65090_irq_init(struct tps65090 *tps65090, int irq, - int irq_base) -{ - int i, ret; - - if (!irq_base) { - dev_err(tps65090->dev, "IRQ base not set\n"); - return -EINVAL; - } - - mutex_init(&tps65090->irq_lock); - - for (i = 0; i < NUM_INT_REG; i++) - tps65090_write(tps65090->dev, TPS65090_INT_MSK + i, 0xFF); - - for (i = 0; i < NUM_INT_REG; i++) - tps65090_write(tps65090->dev, TPS65090_INT_STS + i, 0xff); - - tps65090->irq_base = irq_base; - tps65090->irq_chip.name = "tps65090"; - tps65090->irq_chip.irq_mask = tps65090_irq_mask; - tps65090->irq_chip.irq_unmask = tps65090_irq_unmask; - tps65090->irq_chip.irq_bus_lock = tps65090_irq_lock; - tps65090->irq_chip.irq_bus_sync_unlock = tps65090_irq_sync_unlock; - - for (i = 0; i < ARRAY_SIZE(tps65090_irqs); i++) { - int __irq = i + tps65090->irq_base; - irq_set_chip_data(__irq, tps65090); - irq_set_chip_and_handler(__irq, &tps65090->irq_chip, - handle_simple_irq); - irq_set_nested_thread(__irq, 1); -#ifdef CONFIG_ARM - set_irq_flags(__irq, IRQF_VALID); -#endif - } - - ret = request_threaded_irq(irq, NULL, tps65090_irq, IRQF_ONESHOT, - "tps65090", tps65090); - if (!ret) { - device_init_wakeup(tps65090->dev, 1); - enable_irq_wake(irq); - } +static const struct regmap_irq tps65090_irqs[] = { + /* INT1 IRQs*/ + [TPS65090_IRQ_VAC_STATUS_CHANGE] = { + .mask = TPS65090_INT1_MASK_VAC_STATUS_CHANGE, + }, + [TPS65090_IRQ_VSYS_STATUS_CHANGE] = { + .mask = TPS65090_INT1_MASK_VSYS_STATUS_CHANGE, + }, + [TPS65090_IRQ_BAT_STATUS_CHANGE] = { + .mask = TPS65090_INT1_MASK_BAT_STATUS_CHANGE, + }, + [TPS65090_IRQ_CHARGING_STATUS_CHANGE] = { + .mask = TPS65090_INT1_MASK_CHARGING_STATUS_CHANGE, + }, + [TPS65090_IRQ_CHARGING_COMPLETE] = { + .mask = TPS65090_INT1_MASK_CHARGING_COMPLETE, + }, + [TPS65090_IRQ_OVERLOAD_DCDC1] = { + .mask = TPS65090_INT1_MASK_OVERLOAD_DCDC1, + }, + [TPS65090_IRQ_OVERLOAD_DCDC2] = { + .mask = TPS65090_INT1_MASK_OVERLOAD_DCDC2, + }, + /* INT2 IRQs*/ + [TPS65090_IRQ_OVERLOAD_DCDC3] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_DCDC3, + }, + [TPS65090_IRQ_OVERLOAD_FET1] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET1, + }, + [TPS65090_IRQ_OVERLOAD_FET2] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET2, + }, + [TPS65090_IRQ_OVERLOAD_FET3] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET3, + }, + [TPS65090_IRQ_OVERLOAD_FET4] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET4, + }, + [TPS65090_IRQ_OVERLOAD_FET5] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET5, + }, + [TPS65090_IRQ_OVERLOAD_FET6] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET6, + }, + [TPS65090_IRQ_OVERLOAD_FET7] = { + .reg_offset = 1, + .mask = TPS65090_INT2_MASK_OVERLOAD_FET7, + }, +}; - return ret; -} +static struct regmap_irq_chip tps65090_irq_chip = { + .name = "tps65090", + .irqs = tps65090_irqs, + .num_irqs = ARRAY_SIZE(tps65090_irqs), + .num_regs = NUM_INT_REG, + .status_base = TPS65090_INT_STS, + .mask_base = TPS65090_INT_MSK, + .mask_invert = true, +}; static bool is_volatile_reg(struct device *dev, unsigned int reg) { - if (reg == TPS65090_INT_STS) + if ((reg == TPS65090_INT_STS) || (reg == TPS65090_INT_STS2)) return true; else return false; @@ -263,36 +160,36 @@ static int tps65090_i2c_probe(struct i2c_client *client, return -EINVAL; } - tps65090 = devm_kzalloc(&client->dev, sizeof(struct tps65090), - GFP_KERNEL); - if (tps65090 == NULL) + tps65090 = devm_kzalloc(&client->dev, sizeof(*tps65090), GFP_KERNEL); + if (!tps65090) { + dev_err(&client->dev, "mem alloc for tps65090 failed\n"); return -ENOMEM; + } - tps65090->client = client; tps65090->dev = &client->dev; i2c_set_clientdata(client, tps65090); - mutex_init(&tps65090->lock); - - if (client->irq) { - ret = tps65090_irq_init(tps65090, client->irq, pdata->irq_base); - if (ret) { - dev_err(&client->dev, "IRQ init failed with err: %d\n", - ret); - goto err_exit; - } - } - - tps65090->rmap = devm_regmap_init_i2c(tps65090->client, - &tps65090_regmap_config); + tps65090->rmap = devm_regmap_init_i2c(client, &tps65090_regmap_config); if (IS_ERR(tps65090->rmap)) { ret = PTR_ERR(tps65090->rmap); dev_err(&client->dev, "regmap_init failed with err: %d\n", ret); - goto err_irq_exit; + return ret; + } + + if (client->irq) { + ret = regmap_add_irq_chip(tps65090->rmap, client->irq, + IRQF_ONESHOT | IRQF_TRIGGER_LOW, pdata->irq_base, + &tps65090_irq_chip, &tps65090->irq_data); + if (ret) { + dev_err(&client->dev, + "IRQ init failed with err: %d\n", ret); + return ret; + } } ret = mfd_add_devices(tps65090->dev, -1, tps65090s, - ARRAY_SIZE(tps65090s), NULL, 0, NULL); + ARRAY_SIZE(tps65090s), NULL, + regmap_irq_chip_get_base(tps65090->irq_data), NULL); if (ret) { dev_err(&client->dev, "add mfd devices failed with err: %d\n", ret); @@ -303,8 +200,7 @@ static int tps65090_i2c_probe(struct i2c_client *client, err_irq_exit: if (client->irq) - free_irq(client->irq, tps65090); -err_exit: + regmap_del_irq_chip(client->irq, tps65090->irq_data); return ret; } @@ -314,7 +210,7 @@ static int tps65090_i2c_remove(struct i2c_client *client) mfd_remove_devices(tps65090->dev); if (client->irq) - free_irq(client->irq, tps65090); + regmap_del_irq_chip(client->irq, tps65090->irq_data); return 0; } diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c index e14e252e3473..b8f48647661e 100644 --- a/drivers/mfd/tps65217.c +++ b/drivers/mfd/tps65217.c @@ -160,6 +160,7 @@ static int tps65217_probe(struct i2c_client *client, unsigned int version; unsigned int chip_id = ids->driver_data; const struct of_device_id *match; + bool status_off = false; int ret; if (client->dev.of_node) { @@ -170,6 +171,8 @@ static int tps65217_probe(struct i2c_client *client, return -EINVAL; } chip_id = (unsigned int)match->data; + status_off = of_property_read_bool(client->dev.of_node, + "ti,pmic-shutdown-controller"); } if (!chip_id) { @@ -207,6 +210,15 @@ static int tps65217_probe(struct i2c_client *client, return ret; } + /* Set the PMIC to shutdown on PWR_EN toggle */ + if (status_off) { + ret = tps65217_set_bits(tps, TPS65217_REG_STATUS, + TPS65217_STATUS_OFF, TPS65217_STATUS_OFF, + TPS65217_PROTECT_NONE); + if (ret) + dev_warn(tps->dev, "unable to set the status OFF\n"); + } + dev_info(tps->dev, "TPS65217 ID %#x version 1.%d\n", (version & TPS65217_CHIPID_CHIP_MASK) >> 4, version & TPS65217_CHIPID_REV_MASK); diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c index 87ba7ada3bbc..721b9186a5d1 100644 --- a/drivers/mfd/tps6586x.c +++ b/drivers/mfd/tps6586x.c @@ -17,12 +17,14 @@ #include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/irqdomain.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/slab.h> #include <linux/err.h> #include <linux/i2c.h> +#include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/mfd/core.h> @@ -92,6 +94,14 @@ static const struct tps6586x_irq_data tps6586x_irqs[] = { [TPS6586X_INT_RTC_ALM2] = TPS6586X_IRQ(TPS6586X_INT_MASK4, 1 << 1), }; +static struct resource tps6586x_rtc_resources[] = { + { + .start = TPS6586X_INT_RTC_ALM1, + .end = TPS6586X_INT_RTC_ALM1, + .flags = IORESOURCE_IRQ, + }, +}; + static struct mfd_cell tps6586x_cell[] = { { .name = "tps6586x-gpio", @@ -101,6 +111,8 @@ static struct mfd_cell tps6586x_cell[] = { }, { .name = "tps6586x-rtc", + .num_resources = ARRAY_SIZE(tps6586x_rtc_resources), + .resources = &tps6586x_rtc_resources[0], }, { .name = "tps6586x-onkey", @@ -117,6 +129,7 @@ struct tps6586x { int irq_base; u32 irq_en; u8 mask_reg[5]; + struct irq_domain *irq_domain; }; static inline struct tps6586x *dev_to_tps6586x(struct device *dev) @@ -185,6 +198,14 @@ int tps6586x_update(struct device *dev, int reg, uint8_t val, uint8_t mask) } EXPORT_SYMBOL_GPL(tps6586x_update); +int tps6586x_irq_get_virq(struct device *dev, int irq) +{ + struct tps6586x *tps6586x = dev_to_tps6586x(dev); + + return irq_create_mapping(tps6586x->irq_domain, irq); +} +EXPORT_SYMBOL_GPL(tps6586x_irq_get_virq); + static int __remove_subdev(struct device *dev, void *unused) { platform_device_unregister(to_platform_device(dev)); @@ -206,7 +227,7 @@ static void tps6586x_irq_lock(struct irq_data *data) static void tps6586x_irq_enable(struct irq_data *irq_data) { struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->irq - tps6586x->irq_base; + unsigned int __irq = irq_data->hwirq; const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq]; tps6586x->mask_reg[data->mask_reg] &= ~data->mask_mask; @@ -217,7 +238,7 @@ static void tps6586x_irq_disable(struct irq_data *irq_data) { struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data); - unsigned int __irq = irq_data->irq - tps6586x->irq_base; + unsigned int __irq = irq_data->hwirq; const struct tps6586x_irq_data *data = &tps6586x_irqs[__irq]; tps6586x->mask_reg[data->mask_reg] |= data->mask_mask; @@ -240,6 +261,39 @@ static void tps6586x_irq_sync_unlock(struct irq_data *data) mutex_unlock(&tps6586x->irq_lock); } +static struct irq_chip tps6586x_irq_chip = { + .name = "tps6586x", + .irq_bus_lock = tps6586x_irq_lock, + .irq_bus_sync_unlock = tps6586x_irq_sync_unlock, + .irq_disable = tps6586x_irq_disable, + .irq_enable = tps6586x_irq_enable, +}; + +static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq, + irq_hw_number_t hw) +{ + struct tps6586x *tps6586x = h->host_data; + + irq_set_chip_data(virq, tps6586x); + irq_set_chip_and_handler(virq, &tps6586x_irq_chip, handle_simple_irq); + irq_set_nested_thread(virq, 1); + + /* ARM needs us to explicitly flag the IRQ as valid + * and will set them noprobe when we do so. */ +#ifdef CONFIG_ARM + set_irq_flags(virq, IRQF_VALID); +#else + irq_set_noprobe(virq); +#endif + + return 0; +} + +static struct irq_domain_ops tps6586x_domain_ops = { + .map = tps6586x_irq_map, + .xlate = irq_domain_xlate_twocell, +}; + static irqreturn_t tps6586x_irq(int irq, void *data) { struct tps6586x *tps6586x = data; @@ -260,7 +314,8 @@ static irqreturn_t tps6586x_irq(int irq, void *data) int i = __ffs(acks); if (tps6586x->irq_en & (1 << i)) - handle_nested_irq(tps6586x->irq_base + i); + handle_nested_irq( + irq_find_mapping(tps6586x->irq_domain, i)); acks &= ~(1 << i); } @@ -273,11 +328,8 @@ static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq, { int i, ret; u8 tmp[4]; - - if (!irq_base) { - dev_warn(tps6586x->dev, "No interrupt support on IRQ base\n"); - return -EINVAL; - } + int new_irq_base; + int irq_num = ARRAY_SIZE(tps6586x_irqs); mutex_init(&tps6586x->irq_lock); for (i = 0; i < 5; i++) { @@ -287,25 +339,24 @@ static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq, tps6586x_reads(tps6586x->dev, TPS6586X_INT_ACK1, sizeof(tmp), tmp); - tps6586x->irq_base = irq_base; - - tps6586x->irq_chip.name = "tps6586x"; - tps6586x->irq_chip.irq_enable = tps6586x_irq_enable; - tps6586x->irq_chip.irq_disable = tps6586x_irq_disable; - tps6586x->irq_chip.irq_bus_lock = tps6586x_irq_lock; - tps6586x->irq_chip.irq_bus_sync_unlock = tps6586x_irq_sync_unlock; - - for (i = 0; i < ARRAY_SIZE(tps6586x_irqs); i++) { - int __irq = i + tps6586x->irq_base; - irq_set_chip_data(__irq, tps6586x); - irq_set_chip_and_handler(__irq, &tps6586x->irq_chip, - handle_simple_irq); - irq_set_nested_thread(__irq, 1); -#ifdef CONFIG_ARM - set_irq_flags(__irq, IRQF_VALID); -#endif + if (irq_base > 0) { + new_irq_base = irq_alloc_descs(irq_base, 0, irq_num, -1); + if (new_irq_base < 0) { + dev_err(tps6586x->dev, + "Failed to alloc IRQs: %d\n", new_irq_base); + return new_irq_base; + } + } else { + new_irq_base = 0; } + tps6586x->irq_domain = irq_domain_add_simple(tps6586x->dev->of_node, + irq_num, new_irq_base, &tps6586x_domain_ops, + tps6586x); + if (!tps6586x->irq_domain) { + dev_err(tps6586x->dev, "Failed to create IRQ domain\n"); + return -ENOMEM; + } ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT, "tps6586x", tps6586x); @@ -461,7 +512,7 @@ static int tps6586x_i2c_probe(struct i2c_client *client, ret = mfd_add_devices(tps6586x->dev, -1, tps6586x_cell, ARRAY_SIZE(tps6586x_cell), - NULL, 0, NULL); + NULL, 0, tps6586x->irq_domain); if (ret < 0) { dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret); goto err_mfd_add; diff --git a/drivers/mfd/tps65910-irq.c b/drivers/mfd/tps65910-irq.c deleted file mode 100644 index 09aab3e4776d..000000000000 --- a/drivers/mfd/tps65910-irq.c +++ /dev/null @@ -1,260 +0,0 @@ -/* - * tps65910-irq.c -- TI TPS6591x - * - * Copyright 2010 Texas Instruments Inc. - * - * Author: Graeme Gregory <gg@slimlogic.co.uk> - * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/bug.h> -#include <linux/device.h> -#include <linux/interrupt.h> -#include <linux/irq.h> -#include <linux/irqdomain.h> -#include <linux/gpio.h> -#include <linux/mfd/tps65910.h> - -/* - * This is a threaded IRQ handler so can access I2C/SPI. Since all - * interrupts are clear on read the IRQ line will be reasserted and - * the physical IRQ will be handled again if another interrupt is - * asserted while we run - in the normal course of events this is a - * rare occurrence so we save I2C/SPI reads. We're also assuming that - * it's rare to get lots of interrupts firing simultaneously so try to - * minimise I/O. - */ -static irqreturn_t tps65910_irq(int irq, void *irq_data) -{ - struct tps65910 *tps65910 = irq_data; - unsigned int reg; - u32 irq_sts; - u32 irq_mask; - int i; - - tps65910_reg_read(tps65910, TPS65910_INT_STS, ®); - irq_sts = reg; - tps65910_reg_read(tps65910, TPS65910_INT_STS2, ®); - irq_sts |= reg << 8; - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - tps65910_reg_read(tps65910, TPS65910_INT_STS3, ®); - irq_sts |= reg << 16; - } - - tps65910_reg_read(tps65910, TPS65910_INT_MSK, ®); - irq_mask = reg; - tps65910_reg_read(tps65910, TPS65910_INT_MSK2, ®); - irq_mask |= reg << 8; - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - tps65910_reg_read(tps65910, TPS65910_INT_MSK3, ®); - irq_mask |= reg << 16; - } - - irq_sts &= ~irq_mask; - - if (!irq_sts) - return IRQ_NONE; - - for (i = 0; i < tps65910->irq_num; i++) { - - if (!(irq_sts & (1 << i))) - continue; - - handle_nested_irq(irq_find_mapping(tps65910->domain, i)); - } - - /* Write the STS register back to clear IRQs we handled */ - reg = irq_sts & 0xFF; - irq_sts >>= 8; - tps65910_reg_write(tps65910, TPS65910_INT_STS, reg); - reg = irq_sts & 0xFF; - tps65910_reg_write(tps65910, TPS65910_INT_STS2, reg); - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - reg = irq_sts >> 8; - tps65910_reg_write(tps65910, TPS65910_INT_STS3, reg); - } - - return IRQ_HANDLED; -} - -static void tps65910_irq_lock(struct irq_data *data) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - - mutex_lock(&tps65910->irq_lock); -} - -static void tps65910_irq_sync_unlock(struct irq_data *data) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - u32 reg_mask; - unsigned int reg; - - tps65910_reg_read(tps65910, TPS65910_INT_MSK, ®); - reg_mask = reg; - tps65910_reg_read(tps65910, TPS65910_INT_MSK2, ®); - reg_mask |= reg << 8; - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - tps65910_reg_read(tps65910, TPS65910_INT_MSK3, ®); - reg_mask |= reg << 16; - } - - if (tps65910->irq_mask != reg_mask) { - reg = tps65910->irq_mask & 0xFF; - tps65910_reg_write(tps65910, TPS65910_INT_MSK, reg); - reg = tps65910->irq_mask >> 8 & 0xFF; - tps65910_reg_write(tps65910, TPS65910_INT_MSK2, reg); - switch (tps65910_chip_id(tps65910)) { - case TPS65911: - reg = tps65910->irq_mask >> 16; - tps65910_reg_write(tps65910, TPS65910_INT_MSK3, reg); - } - } - mutex_unlock(&tps65910->irq_lock); -} - -static void tps65910_irq_enable(struct irq_data *data) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - - tps65910->irq_mask &= ~(1 << data->hwirq); -} - -static void tps65910_irq_disable(struct irq_data *data) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - - tps65910->irq_mask |= (1 << data->hwirq); -} - -#ifdef CONFIG_PM_SLEEP -static int tps65910_irq_set_wake(struct irq_data *data, unsigned int enable) -{ - struct tps65910 *tps65910 = irq_data_get_irq_chip_data(data); - return irq_set_irq_wake(tps65910->chip_irq, enable); -} -#else -#define tps65910_irq_set_wake NULL -#endif - -static struct irq_chip tps65910_irq_chip = { - .name = "tps65910", - .irq_bus_lock = tps65910_irq_lock, - .irq_bus_sync_unlock = tps65910_irq_sync_unlock, - .irq_disable = tps65910_irq_disable, - .irq_enable = tps65910_irq_enable, - .irq_set_wake = tps65910_irq_set_wake, -}; - -static int tps65910_irq_map(struct irq_domain *h, unsigned int virq, - irq_hw_number_t hw) -{ - struct tps65910 *tps65910 = h->host_data; - - irq_set_chip_data(virq, tps65910); - irq_set_chip_and_handler(virq, &tps65910_irq_chip, handle_edge_irq); - irq_set_nested_thread(virq, 1); - - /* ARM needs us to explicitly flag the IRQ as valid - * and will set them noprobe when we do so. */ -#ifdef CONFIG_ARM - set_irq_flags(virq, IRQF_VALID); -#else - irq_set_noprobe(virq); -#endif - - return 0; -} - -static struct irq_domain_ops tps65910_domain_ops = { - .map = tps65910_irq_map, - .xlate = irq_domain_xlate_twocell, -}; - -int tps65910_irq_init(struct tps65910 *tps65910, int irq, - struct tps65910_platform_data *pdata) -{ - int ret; - int flags = IRQF_ONESHOT; - - if (!irq) { - dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n"); - return -EINVAL; - } - - if (!pdata) { - dev_warn(tps65910->dev, "No interrupt support, no pdata\n"); - return -EINVAL; - } - - switch (tps65910_chip_id(tps65910)) { - case TPS65910: - tps65910->irq_num = TPS65910_NUM_IRQ; - break; - case TPS65911: - tps65910->irq_num = TPS65911_NUM_IRQ; - break; - } - - if (pdata->irq_base > 0) { - pdata->irq_base = irq_alloc_descs(pdata->irq_base, 0, - tps65910->irq_num, -1); - if (pdata->irq_base < 0) { - dev_warn(tps65910->dev, "Failed to alloc IRQs: %d\n", - pdata->irq_base); - return pdata->irq_base; - } - } - - tps65910->irq_mask = 0xFFFFFF; - - mutex_init(&tps65910->irq_lock); - tps65910->chip_irq = irq; - tps65910->irq_base = pdata->irq_base; - - if (pdata->irq_base > 0) - tps65910->domain = irq_domain_add_legacy(tps65910->dev->of_node, - tps65910->irq_num, - pdata->irq_base, - 0, - &tps65910_domain_ops, tps65910); - else - tps65910->domain = irq_domain_add_linear(tps65910->dev->of_node, - tps65910->irq_num, - &tps65910_domain_ops, tps65910); - - if (!tps65910->domain) { - dev_err(tps65910->dev, "Failed to create IRQ domain\n"); - return -ENOMEM; - } - - ret = request_threaded_irq(irq, NULL, tps65910_irq, flags, - "tps65910", tps65910); - - irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW); - - if (ret != 0) - dev_err(tps65910->dev, "Failed to request IRQ: %d\n", ret); - - return ret; -} - -int tps65910_irq_exit(struct tps65910 *tps65910) -{ - if (tps65910->chip_irq) - free_irq(tps65910->chip_irq, tps65910); - return 0; -} diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c index ce054654f5bb..d79277204835 100644 --- a/drivers/mfd/tps65910.c +++ b/drivers/mfd/tps65910.c @@ -19,6 +19,9 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> #include <linux/mfd/core.h> #include <linux/regmap.h> #include <linux/mfd/tps65910.h> @@ -50,6 +53,219 @@ static struct mfd_cell tps65910s[] = { }; +static const struct regmap_irq tps65911_irqs[] = { + /* INT_STS */ + [TPS65911_IRQ_PWRHOLD_F] = { + .mask = INT_MSK_PWRHOLD_F_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_VBAT_VMHI] = { + .mask = INT_MSK_VMBHI_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_PWRON] = { + .mask = INT_MSK_PWRON_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_PWRON_LP] = { + .mask = INT_MSK_PWRON_LP_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_PWRHOLD_R] = { + .mask = INT_MSK_PWRHOLD_R_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_HOTDIE] = { + .mask = INT_MSK_HOTDIE_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_RTC_ALARM] = { + .mask = INT_MSK_RTC_ALARM_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65911_IRQ_RTC_PERIOD] = { + .mask = INT_MSK_RTC_PERIOD_IT_MSK_MASK, + .reg_offset = 0, + }, + + /* INT_STS2 */ + [TPS65911_IRQ_GPIO0_R] = { + .mask = INT_MSK2_GPIO0_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO0_F] = { + .mask = INT_MSK2_GPIO0_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO1_R] = { + .mask = INT_MSK2_GPIO1_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO1_F] = { + .mask = INT_MSK2_GPIO1_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO2_R] = { + .mask = INT_MSK2_GPIO2_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO2_F] = { + .mask = INT_MSK2_GPIO2_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO3_R] = { + .mask = INT_MSK2_GPIO3_R_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65911_IRQ_GPIO3_F] = { + .mask = INT_MSK2_GPIO3_F_IT_MSK_MASK, + .reg_offset = 1, + }, + + /* INT_STS2 */ + [TPS65911_IRQ_GPIO4_R] = { + .mask = INT_MSK3_GPIO4_R_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_GPIO4_F] = { + .mask = INT_MSK3_GPIO4_F_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_GPIO5_R] = { + .mask = INT_MSK3_GPIO5_R_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_GPIO5_F] = { + .mask = INT_MSK3_GPIO5_F_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_WTCHDG] = { + .mask = INT_MSK3_WTCHDG_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_VMBCH2_H] = { + .mask = INT_MSK3_VMBCH2_H_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_VMBCH2_L] = { + .mask = INT_MSK3_VMBCH2_L_IT_MSK_MASK, + .reg_offset = 2, + }, + [TPS65911_IRQ_PWRDN] = { + .mask = INT_MSK3_PWRDN_IT_MSK_MASK, + .reg_offset = 2, + }, +}; + +static const struct regmap_irq tps65910_irqs[] = { + /* INT_STS */ + [TPS65910_IRQ_VBAT_VMBDCH] = { + .mask = TPS65910_INT_MSK_VMBDCH_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_VBAT_VMHI] = { + .mask = TPS65910_INT_MSK_VMBHI_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_PWRON] = { + .mask = TPS65910_INT_MSK_PWRON_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_PWRON_LP] = { + .mask = TPS65910_INT_MSK_PWRON_LP_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_PWRHOLD] = { + .mask = TPS65910_INT_MSK_PWRHOLD_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_HOTDIE] = { + .mask = TPS65910_INT_MSK_HOTDIE_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_RTC_ALARM] = { + .mask = TPS65910_INT_MSK_RTC_ALARM_IT_MSK_MASK, + .reg_offset = 0, + }, + [TPS65910_IRQ_RTC_PERIOD] = { + .mask = TPS65910_INT_MSK_RTC_PERIOD_IT_MSK_MASK, + .reg_offset = 0, + }, + + /* INT_STS2 */ + [TPS65910_IRQ_GPIO_R] = { + .mask = TPS65910_INT_MSK2_GPIO0_F_IT_MSK_MASK, + .reg_offset = 1, + }, + [TPS65910_IRQ_GPIO_F] = { + .mask = TPS65910_INT_MSK2_GPIO0_R_IT_MSK_MASK, + .reg_offset = 1, + }, +}; + +static struct regmap_irq_chip tps65911_irq_chip = { + .name = "tps65910", + .irqs = tps65911_irqs, + .num_irqs = ARRAY_SIZE(tps65911_irqs), + .num_regs = 3, + .irq_reg_stride = 2, + .status_base = TPS65910_INT_STS, + .mask_base = TPS65910_INT_MSK, + .ack_base = TPS65910_INT_STS, +}; + +static struct regmap_irq_chip tps65910_irq_chip = { + .name = "tps65910", + .irqs = tps65910_irqs, + .num_irqs = ARRAY_SIZE(tps65910_irqs), + .num_regs = 2, + .irq_reg_stride = 2, + .status_base = TPS65910_INT_STS, + .mask_base = TPS65910_INT_MSK, + .ack_base = TPS65910_INT_STS, +}; + +static int tps65910_irq_init(struct tps65910 *tps65910, int irq, + struct tps65910_platform_data *pdata) +{ + int ret = 0; + static struct regmap_irq_chip *tps6591x_irqs_chip; + + if (!irq) { + dev_warn(tps65910->dev, "No interrupt support, no core IRQ\n"); + return -EINVAL; + } + + if (!pdata) { + dev_warn(tps65910->dev, "No interrupt support, no pdata\n"); + return -EINVAL; + } + + switch (tps65910_chip_id(tps65910)) { + case TPS65910: + tps6591x_irqs_chip = &tps65910_irq_chip; + break; + case TPS65911: + tps6591x_irqs_chip = &tps65911_irq_chip; + break; + } + + tps65910->chip_irq = irq; + ret = regmap_add_irq_chip(tps65910->regmap, tps65910->chip_irq, + IRQF_ONESHOT, pdata->irq_base, + tps6591x_irqs_chip, &tps65910->irq_data); + if (ret < 0) + dev_warn(tps65910->dev, "Failed to add irq_chip %d\n", ret); + return ret; +} + +static int tps65910_irq_exit(struct tps65910 *tps65910) +{ + if (tps65910->chip_irq > 0) + regmap_del_irq_chip(tps65910->chip_irq, tps65910->irq_data); + return 0; +} + static bool is_volatile_reg(struct device *dev, unsigned int reg) { struct tps65910 *tps65910 = dev_get_drvdata(dev); @@ -270,7 +486,6 @@ static int tps65910_i2c_probe(struct i2c_client *i2c, tps65910->dev = &i2c->dev; tps65910->i2c_client = i2c; tps65910->id = chip_id; - mutex_init(&tps65910->io_mutex); tps65910->regmap = devm_regmap_init_i2c(i2c, &tps65910_regmap_config); if (IS_ERR(tps65910->regmap)) { @@ -279,14 +494,6 @@ static int tps65910_i2c_probe(struct i2c_client *i2c, return ret; } - ret = mfd_add_devices(tps65910->dev, -1, - tps65910s, ARRAY_SIZE(tps65910s), - NULL, 0, NULL); - if (ret < 0) { - dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret); - return ret; - } - init_data->irq = pmic_plat_data->irq; init_data->irq_base = pmic_plat_data->irq_base; @@ -299,6 +506,15 @@ static int tps65910_i2c_probe(struct i2c_client *i2c, pm_power_off = tps65910_power_off; } + ret = mfd_add_devices(tps65910->dev, -1, + tps65910s, ARRAY_SIZE(tps65910s), + NULL, 0, + regmap_irq_get_domain(tps65910->irq_data)); + if (ret < 0) { + dev_err(&i2c->dev, "mfd_add_devices failed: %d\n", ret); + return ret; + } + return ret; } diff --git a/drivers/mfd/tps80031.c b/drivers/mfd/tps80031.c new file mode 100644 index 000000000000..10b51f7dfff3 --- /dev/null +++ b/drivers/mfd/tps80031.c @@ -0,0 +1,574 @@ +/* + * tps80031.c -- TI TPS80031/TPS80032 mfd core driver. + * + * MFD core driver for TI TPS80031/TPS80032 Fully Integrated + * Power Management with Power Path and Battery Charger + * + * Copyright (c) 2012, NVIDIA Corporation. + * + * Author: Laxman Dewangan <ldewangan@nvidia.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, + * whether express or implied; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + * 02111-1307, USA + */ + +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/mfd/core.h> +#include <linux/mfd/tps80031.h> +#include <linux/module.h> +#include <linux/pm.h> +#include <linux/regmap.h> +#include <linux/slab.h> + +static struct resource tps80031_rtc_resources[] = { + { + .start = TPS80031_INT_RTC_ALARM, + .end = TPS80031_INT_RTC_ALARM, + .flags = IORESOURCE_IRQ, + }, +}; + +/* TPS80031 sub mfd devices */ +static struct mfd_cell tps80031_cell[] = { + { + .name = "tps80031-pmic", + }, + { + .name = "tps80031-clock", + }, + { + .name = "tps80031-rtc", + .num_resources = ARRAY_SIZE(tps80031_rtc_resources), + .resources = tps80031_rtc_resources, + }, + { + .name = "tps80031-gpadc", + }, + { + .name = "tps80031-fuel-gauge", + }, + { + .name = "tps80031-charger", + }, +}; + +static int tps80031_slave_address[TPS80031_NUM_SLAVES] = { + TPS80031_I2C_ID0_ADDR, + TPS80031_I2C_ID1_ADDR, + TPS80031_I2C_ID2_ADDR, + TPS80031_I2C_ID3_ADDR, +}; + +struct tps80031_pupd_data { + u8 reg; + u8 pullup_bit; + u8 pulldown_bit; +}; + +#define TPS80031_IRQ(_reg, _mask) \ + { \ + .reg_offset = (TPS80031_INT_MSK_LINE_##_reg) - \ + TPS80031_INT_MSK_LINE_A, \ + .mask = BIT(_mask), \ + } + +static const struct regmap_irq tps80031_main_irqs[] = { + [TPS80031_INT_PWRON] = TPS80031_IRQ(A, 0), + [TPS80031_INT_RPWRON] = TPS80031_IRQ(A, 1), + [TPS80031_INT_SYS_VLOW] = TPS80031_IRQ(A, 2), + [TPS80031_INT_RTC_ALARM] = TPS80031_IRQ(A, 3), + [TPS80031_INT_RTC_PERIOD] = TPS80031_IRQ(A, 4), + [TPS80031_INT_HOT_DIE] = TPS80031_IRQ(A, 5), + [TPS80031_INT_VXX_SHORT] = TPS80031_IRQ(A, 6), + [TPS80031_INT_SPDURATION] = TPS80031_IRQ(A, 7), + [TPS80031_INT_WATCHDOG] = TPS80031_IRQ(B, 0), + [TPS80031_INT_BAT] = TPS80031_IRQ(B, 1), + [TPS80031_INT_SIM] = TPS80031_IRQ(B, 2), + [TPS80031_INT_MMC] = TPS80031_IRQ(B, 3), + [TPS80031_INT_RES] = TPS80031_IRQ(B, 4), + [TPS80031_INT_GPADC_RT] = TPS80031_IRQ(B, 5), + [TPS80031_INT_GPADC_SW2_EOC] = TPS80031_IRQ(B, 6), + [TPS80031_INT_CC_AUTOCAL] = TPS80031_IRQ(B, 7), + [TPS80031_INT_ID_WKUP] = TPS80031_IRQ(C, 0), + [TPS80031_INT_VBUSS_WKUP] = TPS80031_IRQ(C, 1), + [TPS80031_INT_ID] = TPS80031_IRQ(C, 2), + [TPS80031_INT_VBUS] = TPS80031_IRQ(C, 3), + [TPS80031_INT_CHRG_CTRL] = TPS80031_IRQ(C, 4), + [TPS80031_INT_EXT_CHRG] = TPS80031_IRQ(C, 5), + [TPS80031_INT_INT_CHRG] = TPS80031_IRQ(C, 6), + [TPS80031_INT_RES2] = TPS80031_IRQ(C, 7), +}; + +static struct regmap_irq_chip tps80031_irq_chip = { + .name = "tps80031", + .irqs = tps80031_main_irqs, + .num_irqs = ARRAY_SIZE(tps80031_main_irqs), + .num_regs = 3, + .status_base = TPS80031_INT_STS_A, + .mask_base = TPS80031_INT_MSK_LINE_A, +}; + +#define PUPD_DATA(_reg, _pulldown_bit, _pullup_bit) \ + { \ + .reg = TPS80031_CFG_INPUT_PUPD##_reg, \ + .pulldown_bit = _pulldown_bit, \ + .pullup_bit = _pullup_bit, \ + } + +static const struct tps80031_pupd_data tps80031_pupds[] = { + [TPS80031_PREQ1] = PUPD_DATA(1, BIT(0), BIT(1)), + [TPS80031_PREQ2A] = PUPD_DATA(1, BIT(2), BIT(3)), + [TPS80031_PREQ2B] = PUPD_DATA(1, BIT(4), BIT(5)), + [TPS80031_PREQ2C] = PUPD_DATA(1, BIT(6), BIT(7)), + [TPS80031_PREQ3] = PUPD_DATA(2, BIT(0), BIT(1)), + [TPS80031_NRES_WARM] = PUPD_DATA(2, 0, BIT(2)), + [TPS80031_PWM_FORCE] = PUPD_DATA(2, BIT(5), 0), + [TPS80031_CHRG_EXT_CHRG_STATZ] = PUPD_DATA(2, 0, BIT(6)), + [TPS80031_SIM] = PUPD_DATA(3, BIT(0), BIT(1)), + [TPS80031_MMC] = PUPD_DATA(3, BIT(2), BIT(3)), + [TPS80031_GPADC_START] = PUPD_DATA(3, BIT(4), 0), + [TPS80031_DVSI2C_SCL] = PUPD_DATA(4, 0, BIT(0)), + [TPS80031_DVSI2C_SDA] = PUPD_DATA(4, 0, BIT(1)), + [TPS80031_CTLI2C_SCL] = PUPD_DATA(4, 0, BIT(2)), + [TPS80031_CTLI2C_SDA] = PUPD_DATA(4, 0, BIT(3)), +}; +static struct tps80031 *tps80031_power_off_dev; + +int tps80031_ext_power_req_config(struct device *dev, + unsigned long ext_ctrl_flag, int preq_bit, + int state_reg_add, int trans_reg_add) +{ + u8 res_ass_reg = 0; + int preq_mask_bit = 0; + int ret; + + if (!(ext_ctrl_flag & TPS80031_EXT_PWR_REQ)) + return 0; + + if (ext_ctrl_flag & TPS80031_PWR_REQ_INPUT_PREQ1) { + res_ass_reg = TPS80031_PREQ1_RES_ASS_A + (preq_bit >> 3); + preq_mask_bit = 5; + } else if (ext_ctrl_flag & TPS80031_PWR_REQ_INPUT_PREQ2) { + res_ass_reg = TPS80031_PREQ2_RES_ASS_A + (preq_bit >> 3); + preq_mask_bit = 6; + } else if (ext_ctrl_flag & TPS80031_PWR_REQ_INPUT_PREQ3) { + res_ass_reg = TPS80031_PREQ3_RES_ASS_A + (preq_bit >> 3); + preq_mask_bit = 7; + } + + /* Configure REQ_ASS registers */ + ret = tps80031_set_bits(dev, TPS80031_SLAVE_ID1, res_ass_reg, + BIT(preq_bit & 0x7)); + if (ret < 0) { + dev_err(dev, "reg 0x%02x setbit failed, err = %d\n", + res_ass_reg, ret); + return ret; + } + + /* Unmask the PREQ */ + ret = tps80031_clr_bits(dev, TPS80031_SLAVE_ID1, + TPS80031_PHOENIX_MSK_TRANSITION, BIT(preq_mask_bit)); + if (ret < 0) { + dev_err(dev, "reg 0x%02x clrbit failed, err = %d\n", + TPS80031_PHOENIX_MSK_TRANSITION, ret); + return ret; + } + + /* Switch regulator control to resource now */ + if (ext_ctrl_flag & (TPS80031_PWR_REQ_INPUT_PREQ2 | + TPS80031_PWR_REQ_INPUT_PREQ3)) { + ret = tps80031_update(dev, TPS80031_SLAVE_ID1, state_reg_add, + 0x0, TPS80031_STATE_MASK); + if (ret < 0) + dev_err(dev, "reg 0x%02x update failed, err = %d\n", + state_reg_add, ret); + } else { + ret = tps80031_update(dev, TPS80031_SLAVE_ID1, trans_reg_add, + TPS80031_TRANS_SLEEP_OFF, + TPS80031_TRANS_SLEEP_MASK); + if (ret < 0) + dev_err(dev, "reg 0x%02x update failed, err = %d\n", + trans_reg_add, ret); + } + return ret; +} +EXPORT_SYMBOL_GPL(tps80031_ext_power_req_config); + +static void tps80031_power_off(void) +{ + dev_info(tps80031_power_off_dev->dev, "switching off PMU\n"); + tps80031_write(tps80031_power_off_dev->dev, TPS80031_SLAVE_ID1, + TPS80031_PHOENIX_DEV_ON, TPS80031_DEVOFF); +} + +static void tps80031_pupd_init(struct tps80031 *tps80031, + struct tps80031_platform_data *pdata) +{ + struct tps80031_pupd_init_data *pupd_init_data = pdata->pupd_init_data; + int data_size = pdata->pupd_init_data_size; + int i; + + for (i = 0; i < data_size; ++i) { + struct tps80031_pupd_init_data *pupd_init = &pupd_init_data[i]; + const struct tps80031_pupd_data *pupd = + &tps80031_pupds[pupd_init->input_pin]; + u8 update_value = 0; + u8 update_mask = pupd->pulldown_bit | pupd->pullup_bit; + + if (pupd_init->setting == TPS80031_PUPD_PULLDOWN) + update_value = pupd->pulldown_bit; + else if (pupd_init->setting == TPS80031_PUPD_PULLUP) + update_value = pupd->pullup_bit; + + tps80031_update(tps80031->dev, TPS80031_SLAVE_ID1, pupd->reg, + update_value, update_mask); + } +} + +static int tps80031_init_ext_control(struct tps80031 *tps80031, + struct tps80031_platform_data *pdata) +{ + struct device *dev = tps80031->dev; + int ret; + int i; + + /* Clear all external control for this rail */ + for (i = 0; i < 9; ++i) { + ret = tps80031_write(dev, TPS80031_SLAVE_ID1, + TPS80031_PREQ1_RES_ASS_A + i, 0); + if (ret < 0) { + dev_err(dev, "reg 0x%02x write failed, err = %d\n", + TPS80031_PREQ1_RES_ASS_A + i, ret); + return ret; + } + } + + /* Mask the PREQ */ + ret = tps80031_set_bits(dev, TPS80031_SLAVE_ID1, + TPS80031_PHOENIX_MSK_TRANSITION, 0x7 << 5); + if (ret < 0) { + dev_err(dev, "reg 0x%02x set_bits failed, err = %d\n", + TPS80031_PHOENIX_MSK_TRANSITION, ret); + return ret; + } + return ret; +} + +static int __devinit tps80031_irq_init(struct tps80031 *tps80031, int irq, + int irq_base) +{ + struct device *dev = tps80031->dev; + int i, ret; + + /* + * The MASK register used for updating status register when + * interrupt occurs and LINE register used to pass the status + * to actual interrupt line. As per datasheet: + * When INT_MSK_LINE [i] is set to 1, the associated interrupt + * number i is INT line masked, which means that no interrupt is + * generated on the INT line. + * When INT_MSK_LINE [i] is set to 0, the associated interrupt + * number i is line enabled: An interrupt is generated on the + * INT line. + * In any case, the INT_STS [i] status bit may or may not be updated, + * only linked to the INT_MSK_STS [i] configuration register bit. + * + * When INT_MSK_STS [i] is set to 1, the associated interrupt number + * i is status masked, which means that no interrupt is stored in + * the INT_STS[i] status bit. Note that no interrupt number i is + * generated on the INT line, even if the INT_MSK_LINE [i] register + * bit is set to 0. + * When INT_MSK_STS [i] is set to 0, the associated interrupt number i + * is status enabled: An interrupt status is updated in the INT_STS [i] + * register. The interrupt may or may not be generated on the INT line, + * depending on the INT_MSK_LINE [i] configuration register bit. + */ + for (i = 0; i < 3; i++) + tps80031_write(dev, TPS80031_SLAVE_ID2, + TPS80031_INT_MSK_STS_A + i, 0x00); + + ret = regmap_add_irq_chip(tps80031->regmap[TPS80031_SLAVE_ID2], irq, + IRQF_ONESHOT, irq_base, + &tps80031_irq_chip, &tps80031->irq_data); + if (ret < 0) { + dev_err(dev, "add irq failed, err = %d\n", ret); + return ret; + } + return ret; +} + +static bool rd_wr_reg_id0(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_SMPS1_CFG_FORCE ... TPS80031_SMPS2_CFG_VOLTAGE: + return true; + default: + return false; + } +} + +static bool rd_wr_reg_id1(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_SECONDS_REG ... TPS80031_RTC_RESET_STATUS_REG: + case TPS80031_VALIDITY0 ... TPS80031_VALIDITY7: + case TPS80031_PHOENIX_START_CONDITION ... TPS80031_KEY_PRESS_DUR_CFG: + case TPS80031_SMPS4_CFG_TRANS ... TPS80031_SMPS3_CFG_VOLTAGE: + case TPS80031_BROADCAST_ADDR_ALL ... TPS80031_BROADCAST_ADDR_CLK_RST: + case TPS80031_VANA_CFG_TRANS ... TPS80031_LDO7_CFG_VOLTAGE: + case TPS80031_REGEN1_CFG_TRANS ... TPS80031_TMP_CFG_STATE: + case TPS80031_PREQ1_RES_ASS_A ... TPS80031_PREQ3_RES_ASS_C: + case TPS80031_SMPS_OFFSET ... TPS80031_BATDEBOUNCING: + case TPS80031_CFG_INPUT_PUPD1 ... TPS80031_CFG_SMPS_PD: + case TPS80031_BACKUP_REG: + return true; + default: + return false; + } +} + +static bool is_volatile_reg_id1(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_SMPS4_CFG_TRANS ... TPS80031_SMPS3_CFG_VOLTAGE: + case TPS80031_VANA_CFG_TRANS ... TPS80031_LDO7_CFG_VOLTAGE: + case TPS80031_REGEN1_CFG_TRANS ... TPS80031_TMP_CFG_STATE: + case TPS80031_PREQ1_RES_ASS_A ... TPS80031_PREQ3_RES_ASS_C: + case TPS80031_SMPS_OFFSET ... TPS80031_BATDEBOUNCING: + case TPS80031_CFG_INPUT_PUPD1 ... TPS80031_CFG_SMPS_PD: + return true; + default: + return false; + } +} + +static bool rd_wr_reg_id2(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_USB_VENDOR_ID_LSB ... TPS80031_USB_OTG_REVISION: + case TPS80031_GPADC_CTRL ... TPS80031_CTRL_P1: + case TPS80031_RTCH0_LSB ... TPS80031_GPCH0_MSB: + case TPS80031_TOGGLE1 ... TPS80031_VIBMODE: + case TPS80031_PWM1ON ... TPS80031_PWM2OFF: + case TPS80031_FG_REG_00 ... TPS80031_FG_REG_11: + case TPS80031_INT_STS_A ... TPS80031_INT_MSK_STS_C: + case TPS80031_CONTROLLER_CTRL2 ... TPS80031_LED_PWM_CTRL2: + return true; + default: + return false; + } +} + +static bool rd_wr_reg_id3(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TPS80031_GPADC_TRIM0 ... TPS80031_GPADC_TRIM18: + return true; + default: + return false; + } +} + +static const struct regmap_config tps80031_regmap_configs[] = { + { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = rd_wr_reg_id0, + .readable_reg = rd_wr_reg_id0, + .max_register = TPS80031_MAX_REGISTER, + }, + { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = rd_wr_reg_id1, + .readable_reg = rd_wr_reg_id1, + .volatile_reg = is_volatile_reg_id1, + .max_register = TPS80031_MAX_REGISTER, + }, + { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = rd_wr_reg_id2, + .readable_reg = rd_wr_reg_id2, + .max_register = TPS80031_MAX_REGISTER, + }, + { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = rd_wr_reg_id3, + .readable_reg = rd_wr_reg_id3, + .max_register = TPS80031_MAX_REGISTER, + }, +}; + +static int __devinit tps80031_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct tps80031_platform_data *pdata = client->dev.platform_data; + struct tps80031 *tps80031; + int ret; + uint8_t es_version; + uint8_t ep_ver; + int i; + + if (!pdata) { + dev_err(&client->dev, "tps80031 requires platform data\n"); + return -EINVAL; + } + + tps80031 = devm_kzalloc(&client->dev, sizeof(*tps80031), GFP_KERNEL); + if (!tps80031) { + dev_err(&client->dev, "Malloc failed for tps80031\n"); + return -ENOMEM; + } + + for (i = 0; i < TPS80031_NUM_SLAVES; i++) { + if (tps80031_slave_address[i] == client->addr) + tps80031->clients[i] = client; + else + tps80031->clients[i] = i2c_new_dummy(client->adapter, + tps80031_slave_address[i]); + if (!tps80031->clients[i]) { + dev_err(&client->dev, "can't attach client %d\n", i); + ret = -ENOMEM; + goto fail_client_reg; + } + + i2c_set_clientdata(tps80031->clients[i], tps80031); + tps80031->regmap[i] = devm_regmap_init_i2c(tps80031->clients[i], + &tps80031_regmap_configs[i]); + if (IS_ERR(tps80031->regmap[i])) { + ret = PTR_ERR(tps80031->regmap[i]); + dev_err(&client->dev, + "regmap %d init failed, err %d\n", i, ret); + goto fail_client_reg; + } + } + + ret = tps80031_read(&client->dev, TPS80031_SLAVE_ID3, + TPS80031_JTAGVERNUM, &es_version); + if (ret < 0) { + dev_err(&client->dev, + "Silicon version number read failed: %d\n", ret); + goto fail_client_reg; + } + + ret = tps80031_read(&client->dev, TPS80031_SLAVE_ID3, + TPS80031_EPROM_REV, &ep_ver); + if (ret < 0) { + dev_err(&client->dev, + "Silicon eeprom version read failed: %d\n", ret); + goto fail_client_reg; + } + + dev_info(&client->dev, "ES version 0x%02x and EPROM version 0x%02x\n", + es_version, ep_ver); + tps80031->es_version = es_version; + tps80031->dev = &client->dev; + i2c_set_clientdata(client, tps80031); + tps80031->chip_info = id->driver_data; + + ret = tps80031_irq_init(tps80031, client->irq, pdata->irq_base); + if (ret) { + dev_err(&client->dev, "IRQ init failed: %d\n", ret); + goto fail_client_reg; + } + + tps80031_pupd_init(tps80031, pdata); + + tps80031_init_ext_control(tps80031, pdata); + + ret = mfd_add_devices(tps80031->dev, -1, + tps80031_cell, ARRAY_SIZE(tps80031_cell), + NULL, 0, + regmap_irq_get_domain(tps80031->irq_data)); + if (ret < 0) { + dev_err(&client->dev, "mfd_add_devices failed: %d\n", ret); + goto fail_mfd_add; + } + + if (pdata->use_power_off && !pm_power_off) { + tps80031_power_off_dev = tps80031; + pm_power_off = tps80031_power_off; + } + return 0; + +fail_mfd_add: + regmap_del_irq_chip(client->irq, tps80031->irq_data); + +fail_client_reg: + for (i = 0; i < TPS80031_NUM_SLAVES; i++) { + if (tps80031->clients[i] && (tps80031->clients[i] != client)) + i2c_unregister_device(tps80031->clients[i]); + } + return ret; +} + +static int __devexit tps80031_remove(struct i2c_client *client) +{ + struct tps80031 *tps80031 = i2c_get_clientdata(client); + int i; + + if (tps80031_power_off_dev == tps80031) { + tps80031_power_off_dev = NULL; + pm_power_off = NULL; + } + + mfd_remove_devices(tps80031->dev); + + regmap_del_irq_chip(client->irq, tps80031->irq_data); + + for (i = 0; i < TPS80031_NUM_SLAVES; i++) { + if (tps80031->clients[i] != client) + i2c_unregister_device(tps80031->clients[i]); + } + return 0; +} + +static const struct i2c_device_id tps80031_id_table[] = { + { "tps80031", TPS80031 }, + { "tps80032", TPS80032 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tps80031_id_table); + +static struct i2c_driver tps80031_driver = { + .driver = { + .name = "tps80031", + .owner = THIS_MODULE, + }, + .probe = tps80031_probe, + .remove = __devexit_p(tps80031_remove), + .id_table = tps80031_id_table, +}; + +static int __init tps80031_init(void) +{ + return i2c_add_driver(&tps80031_driver); +} +subsys_initcall(tps80031_init); + +static void __exit tps80031_exit(void) +{ + i2c_del_driver(&tps80031_driver); +} +module_exit(tps80031_exit); + +MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>"); +MODULE_DESCRIPTION("TPS80031 core driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/mfd/twl-core.c b/drivers/mfd/twl-core.c index 11b76c0109f5..4f3baadd0038 100644 --- a/drivers/mfd/twl-core.c +++ b/drivers/mfd/twl-core.c @@ -32,6 +32,7 @@ #include <linux/mutex.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <linux/regmap.h> #include <linux/clk.h> #include <linux/err.h> #include <linux/device.h> @@ -65,9 +66,6 @@ /* Triton Core internal information (BEGIN) */ -/* Last - for index max*/ -#define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG - #define TWL_NUM_SLAVES 4 #define SUB_CHIP_ID0 0 @@ -171,13 +169,7 @@ EXPORT_SYMBOL(twl_rev); /* Structure for each TWL4030/TWL6030 Slave */ struct twl_client { struct i2c_client *client; - u8 address; - - /* max numb of i2c_msg required is for read =2 */ - struct i2c_msg xfer_msg[2]; - - /* To lock access to xfer_msg */ - struct mutex xfer_lock; + struct regmap *regmap; }; static struct twl_client twl_modules[TWL_NUM_SLAVES]; @@ -189,7 +181,7 @@ struct twl_mapping { }; static struct twl_mapping *twl_map; -static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { +static struct twl_mapping twl4030_map[] = { /* * NOTE: don't change this table without updating the * <linux/i2c/twl.h> defines for TWL4030_MODULE_* @@ -197,34 +189,62 @@ static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { */ { 0, TWL4030_BASEADD_USB }, - { 1, TWL4030_BASEADD_AUDIO_VOICE }, { 1, TWL4030_BASEADD_GPIO }, { 1, TWL4030_BASEADD_INTBR }, { 1, TWL4030_BASEADD_PIH }, - { 1, TWL4030_BASEADD_TEST }, + { 1, TWL4030_BASEADD_TEST }, { 2, TWL4030_BASEADD_KEYPAD }, { 2, TWL4030_BASEADD_MADC }, { 2, TWL4030_BASEADD_INTERRUPTS }, { 2, TWL4030_BASEADD_LED }, + { 2, TWL4030_BASEADD_MAIN_CHARGE }, { 2, TWL4030_BASEADD_PRECHARGE }, { 2, TWL4030_BASEADD_PWM0 }, { 2, TWL4030_BASEADD_PWM1 }, { 2, TWL4030_BASEADD_PWMA }, + { 2, TWL4030_BASEADD_PWMB }, { 2, TWL5031_BASEADD_ACCESSORY }, { 2, TWL5031_BASEADD_INTERRUPTS }, - { 3, TWL4030_BASEADD_BACKUP }, { 3, TWL4030_BASEADD_INT }, + { 3, TWL4030_BASEADD_PM_MASTER }, { 3, TWL4030_BASEADD_PM_RECEIVER }, { 3, TWL4030_BASEADD_RTC }, { 3, TWL4030_BASEADD_SECURED_REG }, }; +static struct regmap_config twl4030_regmap_config[4] = { + { + /* Address 0x48 */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x49 */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x4a */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x4b */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, +}; + static struct twl_mapping twl6030_map[] = { /* * NOTE: don't change this table without updating the @@ -254,14 +274,35 @@ static struct twl_mapping twl6030_map[] = { { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, + { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, - { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER }, }; +static struct regmap_config twl6030_regmap_config[3] = { + { + /* Address 0x48 */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x49 */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, + { + /* Address 0x4a */ + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xff, + }, +}; + /*----------------------------------------------------------------------*/ /* Exported Functions */ @@ -283,9 +324,8 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) int ret; int sid; struct twl_client *twl; - struct i2c_msg *msg; - if (unlikely(mod_no > TWL_MODULE_LAST)) { + if (unlikely(mod_no >= TWL_MODULE_LAST)) { pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); return -EPERM; } @@ -301,32 +341,14 @@ int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) } twl = &twl_modules[sid]; - mutex_lock(&twl->xfer_lock); - /* - * [MSG1]: fill the register address data - * fill the data Tx buffer - */ - msg = &twl->xfer_msg[0]; - msg->addr = twl->address; - msg->len = num_bytes + 1; - msg->flags = 0; - msg->buf = value; - /* over write the first byte of buffer with the register address */ - *value = twl_map[mod_no].base + reg; - ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); - mutex_unlock(&twl->xfer_lock); - - /* i2c_transfer returns number of messages transferred */ - if (ret != 1) { - pr_err("%s: i2c_write failed to transfer all messages\n", - DRIVER_NAME); - if (ret < 0) - return ret; - else - return -EIO; - } else { - return 0; - } + ret = regmap_bulk_write(twl->regmap, twl_map[mod_no].base + reg, + value, num_bytes); + + if (ret) + pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n", + DRIVER_NAME, mod_no, reg, num_bytes); + + return ret; } EXPORT_SYMBOL(twl_i2c_write); @@ -342,12 +364,10 @@ EXPORT_SYMBOL(twl_i2c_write); int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) { int ret; - u8 val; int sid; struct twl_client *twl; - struct i2c_msg *msg; - if (unlikely(mod_no > TWL_MODULE_LAST)) { + if (unlikely(mod_no >= TWL_MODULE_LAST)) { pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); return -EPERM; } @@ -363,34 +383,14 @@ int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) } twl = &twl_modules[sid]; - mutex_lock(&twl->xfer_lock); - /* [MSG1] fill the register address data */ - msg = &twl->xfer_msg[0]; - msg->addr = twl->address; - msg->len = 1; - msg->flags = 0; /* Read the register value */ - val = twl_map[mod_no].base + reg; - msg->buf = &val; - /* [MSG2] fill the data rx buffer */ - msg = &twl->xfer_msg[1]; - msg->addr = twl->address; - msg->flags = I2C_M_RD; /* Read the register value */ - msg->len = num_bytes; /* only n bytes */ - msg->buf = value; - ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); - mutex_unlock(&twl->xfer_lock); - - /* i2c_transfer returns number of messages transferred */ - if (ret != 2) { - pr_err("%s: i2c_read failed to transfer all messages\n", - DRIVER_NAME); - if (ret < 0) - return ret; - else - return -EIO; - } else { - return 0; - } + ret = regmap_bulk_read(twl->regmap, twl_map[mod_no].base + reg, + value, num_bytes); + + if (ret) + pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n", + DRIVER_NAME, mod_no, reg, num_bytes); + + return ret; } EXPORT_SYMBOL(twl_i2c_read); @@ -404,12 +404,7 @@ EXPORT_SYMBOL(twl_i2c_read); */ int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) { - - /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ - u8 temp_buffer[2] = { 0 }; - /* offset 1 contains the data */ - temp_buffer[1] = value; - return twl_i2c_write(mod_no, temp_buffer, reg, 1); + return twl_i2c_write(mod_no, &value, reg, 1); } EXPORT_SYMBOL(twl_i2c_write_u8); @@ -646,8 +641,9 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, return PTR_ERR(child); } - if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc) { - child = add_child(2, "twl4030_madc", + if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc && + twl_class_is_4030()) { + child = add_child(SUB_CHIP_ID2, "twl4030_madc", pdata->madc, sizeof(*pdata->madc), true, irq_base + MADC_INTR_OFFSET, 0); if (IS_ERR(child)) @@ -663,15 +659,21 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, * HW security concerns, and "least privilege". */ sub_chip_id = twl_map[TWL_MODULE_RTC].sid; - child = add_child(sub_chip_id, "twl_rtc", - NULL, 0, + child = add_child(sub_chip_id, "twl_rtc", NULL, 0, true, irq_base + RTC_INTR_OFFSET, 0); if (IS_ERR(child)) return PTR_ERR(child); } - if (IS_ENABLED(CONFIG_PWM_TWL6030) && twl_class_is_6030()) { - child = add_child(SUB_CHIP_ID1, "twl6030-pwm", NULL, 0, + if (IS_ENABLED(CONFIG_PWM_TWL)) { + child = add_child(SUB_CHIP_ID1, "twl-pwm", NULL, 0, + false, 0, 0); + if (IS_ERR(child)) + return PTR_ERR(child); + } + + if (IS_ENABLED(CONFIG_PWM_TWL_LED)) { + child = add_child(SUB_CHIP_ID1, "twl-pwmled", NULL, 0, false, 0, 0); if (IS_ERR(child)) return PTR_ERR(child); @@ -723,9 +725,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, } - child = add_child(0, "twl4030_usb", - pdata->usb, sizeof(*pdata->usb), - true, + child = add_child(SUB_CHIP_ID0, "twl4030_usb", + pdata->usb, sizeof(*pdata->usb), true, /* irq0 = USB_PRES, irq1 = USB */ irq_base + USB_PRES_INTR_OFFSET, irq_base + USB_INTR_OFFSET); @@ -773,9 +774,8 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, pdata->usb->features = features; - child = add_child(0, "twl6030_usb", - pdata->usb, sizeof(*pdata->usb), - true, + child = add_child(SUB_CHIP_ID0, "twl6030_usb", + pdata->usb, sizeof(*pdata->usb), true, /* irq1 = VBUS_PRES, irq0 = USB ID */ irq_base + USBOTG_INTR_OFFSET, irq_base + USB_PRES_INTR_OFFSET); @@ -799,22 +799,22 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, } if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) { - child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); + child = add_child(SUB_CHIP_ID3, "twl4030_wdt", NULL, 0, + false, 0, 0); if (IS_ERR(child)) return PTR_ERR(child); } if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) { - child = add_child(1, "twl4030_pwrbutton", - NULL, 0, true, irq_base + 8 + 0, 0); + child = add_child(SUB_CHIP_ID3, "twl4030_pwrbutton", NULL, 0, + true, irq_base + 8 + 0, 0); if (IS_ERR(child)) return PTR_ERR(child); } if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio && twl_class_is_4030()) { - sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; - child = add_child(sub_chip_id, "twl4030-audio", + child = add_child(SUB_CHIP_ID1, "twl4030-audio", pdata->audio, sizeof(*pdata->audio), false, 0, 0); if (IS_ERR(child)) @@ -1054,7 +1054,7 @@ add_children(struct twl4030_platform_data *pdata, unsigned irq_base, if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci && !(features & (TPS_SUBSET | TWL5031))) { - child = add_child(3, "twl4030_bci", + child = add_child(SUB_CHIP_ID3, "twl4030_bci", pdata->bci, sizeof(*pdata->bci), false, /* irq0 = CHG_PRES, irq1 = BCI */ irq_base + BCI_PRES_INTR_OFFSET, @@ -1077,8 +1077,8 @@ static inline int __init protect_pm_master(void) { int e = 0; - e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, - TWL4030_PM_MASTER_PROTECT_KEY); + e = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0, + TWL4030_PM_MASTER_PROTECT_KEY); return e; } @@ -1086,12 +1086,10 @@ static inline int __init unprotect_pm_master(void) { int e = 0; - e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG1, - TWL4030_PM_MASTER_PROTECT_KEY); - e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG2, - TWL4030_PM_MASTER_PROTECT_KEY); + e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1, + TWL4030_PM_MASTER_PROTECT_KEY); + e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2, + TWL4030_PM_MASTER_PROTECT_KEY); return e; } @@ -1176,6 +1174,7 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) struct twl4030_platform_data *pdata = client->dev.platform_data; struct device_node *node = client->dev.of_node; struct platform_device *pdev; + struct regmap_config *twl_regmap_config; int irq_base = 0; int status; unsigned i, num_slaves; @@ -1229,22 +1228,23 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) if ((id->driver_data) & TWL6030_CLASS) { twl_id = TWL6030_CLASS_ID; twl_map = &twl6030_map[0]; + twl_regmap_config = twl6030_regmap_config; num_slaves = TWL_NUM_SLAVES - 1; } else { twl_id = TWL4030_CLASS_ID; twl_map = &twl4030_map[0]; + twl_regmap_config = twl4030_regmap_config; num_slaves = TWL_NUM_SLAVES; } for (i = 0; i < num_slaves; i++) { struct twl_client *twl = &twl_modules[i]; - twl->address = client->addr + i; if (i == 0) { twl->client = client; } else { twl->client = i2c_new_dummy(client->adapter, - twl->address); + client->addr + i); if (!twl->client) { dev_err(&client->dev, "can't attach client %d\n", i); @@ -1252,7 +1252,16 @@ twl_probe(struct i2c_client *client, const struct i2c_device_id *id) goto fail; } } - mutex_init(&twl->xfer_lock); + + twl->regmap = devm_regmap_init_i2c(twl->client, + &twl_regmap_config[i]); + if (IS_ERR(twl->regmap)) { + status = PTR_ERR(twl->regmap); + dev_err(&client->dev, + "Failed to allocate regmap %d, err: %d\n", i, + status); + goto fail; + } } inuse = true; diff --git a/drivers/mfd/twl4030-irq.c b/drivers/mfd/twl4030-irq.c index cdd1173ed4e9..a5f9888aa19c 100644 --- a/drivers/mfd/twl4030-irq.c +++ b/drivers/mfd/twl4030-irq.c @@ -295,8 +295,8 @@ static irqreturn_t handle_twl4030_pih(int irq, void *devid) irqreturn_t ret; u8 pih_isr; - ret = twl_i2c_read_u8(TWL4030_MODULE_PIH, &pih_isr, - REG_PIH_ISR_P1); + ret = twl_i2c_read_u8(TWL_MODULE_PIH, &pih_isr, + REG_PIH_ISR_P1); if (ret) { pr_warning("twl4030: I2C error %d reading PIH ISR\n", ret); return IRQ_NONE; @@ -501,7 +501,7 @@ static void twl4030_sih_bus_sync_unlock(struct irq_data *data) } imr; /* byte[0] gets overwritten as we write ... */ - imr.word = cpu_to_le32(agent->imr << 8); + imr.word = cpu_to_le32(agent->imr); agent->imr_change_pending = false; /* write the whole mask ... simpler than subsetting it */ @@ -526,7 +526,7 @@ static void twl4030_sih_bus_sync_unlock(struct irq_data *data) * any processor on the other IRQ line, EDR registers are * shared. */ - status = twl_i2c_read(sih->module, bytes + 1, + status = twl_i2c_read(sih->module, bytes, sih->edr_offset, sih->bytes_edr); if (status) { pr_err("twl4030: %s, %s --> %d\n", __func__, @@ -538,7 +538,7 @@ static void twl4030_sih_bus_sync_unlock(struct irq_data *data) while (edge_change) { int i = fls(edge_change) - 1; struct irq_data *idata; - int byte = 1 + (i >> 2); + int byte = i >> 2; int off = (i & 0x3) * 2; unsigned int type; diff --git a/drivers/mfd/twl4030-madc.c b/drivers/mfd/twl4030-madc.c index a39dcf3e2133..88ff9dc83305 100644 --- a/drivers/mfd/twl4030-madc.c +++ b/drivers/mfd/twl4030-madc.c @@ -173,7 +173,7 @@ static int twl4030battery_temperature(int raw_volt) volt = (raw_volt * TEMP_STEP_SIZE) / TEMP_PSR_R; /* Getting and calculating the supply current in micro ampers */ - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, &val, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, &val, REG_BCICTL2); if (ret < 0) return ret; @@ -196,7 +196,7 @@ static int twl4030battery_current(int raw_volt) int ret; u8 val; - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, &val, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, &val, TWL4030_BCI_BCICTL1); if (ret) return ret; @@ -635,7 +635,7 @@ static int twl4030_madc_set_current_generator(struct twl4030_madc_data *madc, int ret; u8 regval; - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, ®val, TWL4030_BCI_BCICTL1); if (ret) { dev_err(madc->dev, "unable to read BCICTL1 reg 0x%X", @@ -646,7 +646,7 @@ static int twl4030_madc_set_current_generator(struct twl4030_madc_data *madc, regval |= chan ? TWL4030_BCI_ITHEN : TWL4030_BCI_TYPEN; else regval &= chan ? ~TWL4030_BCI_ITHEN : ~TWL4030_BCI_TYPEN; - ret = twl_i2c_write_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_write_u8(TWL_MODULE_MAIN_CHARGE, regval, TWL4030_BCI_BCICTL1); if (ret) { dev_err(madc->dev, "unable to write BCICTL1 reg 0x%X\n", @@ -668,7 +668,7 @@ static int twl4030_madc_set_power(struct twl4030_madc_data *madc, int on) u8 regval; int ret; - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, ®val, TWL4030_MADC_CTRL1); if (ret) { dev_err(madc->dev, "unable to read madc ctrl1 reg 0x%X\n", @@ -725,7 +725,7 @@ static int twl4030_madc_probe(struct platform_device *pdev) if (ret < 0) goto err_current_generator; - ret = twl_i2c_read_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_read_u8(TWL_MODULE_MAIN_CHARGE, ®val, TWL4030_BCI_BCICTL1); if (ret) { dev_err(&pdev->dev, "unable to read reg BCI CTL1 0x%X\n", @@ -733,7 +733,7 @@ static int twl4030_madc_probe(struct platform_device *pdev) goto err_i2c; } regval |= TWL4030_BCI_MESBAT; - ret = twl_i2c_write_u8(TWL4030_MODULE_MAIN_CHARGE, + ret = twl_i2c_write_u8(TWL_MODULE_MAIN_CHARGE, regval, TWL4030_BCI_BCICTL1); if (ret) { dev_err(&pdev->dev, "unable to write reg BCI Ctl1 0x%X\n", diff --git a/drivers/mfd/twl4030-power.c b/drivers/mfd/twl4030-power.c index a5332063183a..4dae241e5017 100644 --- a/drivers/mfd/twl4030-power.c +++ b/drivers/mfd/twl4030-power.c @@ -128,12 +128,10 @@ static int twl4030_write_script_byte(u8 address, u8 byte) { int err; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_MEMORY_ADDRESS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_MEMORY_ADDRESS); if (err) goto out; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, byte, - R_MEMORY_DATA); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, byte, R_MEMORY_DATA); out: return err; } @@ -189,19 +187,16 @@ static int twl4030_config_wakeup3_sequence(u8 address) u8 data; /* Set SLEEP to ACTIVE SEQ address for P3 */ - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_SEQ_ADD_S2A3); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_SEQ_ADD_S2A3); if (err) goto out; /* P3 LVL_WAKEUP should be on LEVEL */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, - R_P3_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &data, R_P3_SW_EVENTS); if (err) goto out; data |= LVL_WAKEUP; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data, - R_P3_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, data, R_P3_SW_EVENTS); out: if (err) pr_err("TWL4030 wakeup sequence for P3 config error\n"); @@ -214,43 +209,38 @@ static int twl4030_config_wakeup12_sequence(u8 address) u8 data; /* Set SLEEP to ACTIVE SEQ address for P1 and P2 */ - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_SEQ_ADD_S2A12); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_SEQ_ADD_S2A12); if (err) goto out; /* P1/P2 LVL_WAKEUP should be on LEVEL */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, - R_P1_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &data, R_P1_SW_EVENTS); if (err) goto out; data |= LVL_WAKEUP; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data, - R_P1_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, data, R_P1_SW_EVENTS); if (err) goto out; - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, - R_P2_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &data, R_P2_SW_EVENTS); if (err) goto out; data |= LVL_WAKEUP; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data, - R_P2_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, data, R_P2_SW_EVENTS); if (err) goto out; if (machine_is_omap_3430sdp() || machine_is_omap_ldp()) { /* Disabling AC charger effect on sleep-active transitions */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &data, - R_CFG_P1_TRANSITION); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &data, + R_CFG_P1_TRANSITION); if (err) goto out; data &= ~(1<<1); - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, data , - R_CFG_P1_TRANSITION); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, data, + R_CFG_P1_TRANSITION); if (err) goto out; } @@ -267,8 +257,7 @@ static int twl4030_config_sleep_sequence(u8 address) int err; /* Set ACTIVE to SLEEP SEQ address in T2 memory*/ - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_SEQ_ADD_A2S); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_SEQ_ADD_A2S); if (err) pr_err("TWL4030 sleep sequence config error\n"); @@ -282,42 +271,35 @@ static int twl4030_config_warmreset_sequence(u8 address) u8 rd_data; /* Set WARM RESET SEQ address for P1 */ - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, address, - R_SEQ_ADD_WARM); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, address, R_SEQ_ADD_WARM); if (err) goto out; /* P1/P2/P3 enable WARMRESET */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, - R_P1_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &rd_data, R_P1_SW_EVENTS); if (err) goto out; rd_data |= ENABLE_WARMRESET; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, - R_P1_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, rd_data, R_P1_SW_EVENTS); if (err) goto out; - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, - R_P2_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &rd_data, R_P2_SW_EVENTS); if (err) goto out; rd_data |= ENABLE_WARMRESET; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, - R_P2_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, rd_data, R_P2_SW_EVENTS); if (err) goto out; - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &rd_data, - R_P3_SW_EVENTS); + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &rd_data, R_P3_SW_EVENTS); if (err) goto out; rd_data |= ENABLE_WARMRESET; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, rd_data, - R_P3_SW_EVENTS); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, rd_data, R_P3_SW_EVENTS); out: if (err) pr_err("TWL4030 warmreset seq config error\n"); @@ -341,7 +323,7 @@ static int twl4030_configure_resource(struct twl4030_resconfig *rconfig) rconfig_addr = res_config_addrs[rconfig->resource]; /* Set resource group */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &grp, + err = twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &grp, rconfig_addr + DEV_GRP_OFFSET); if (err) { pr_err("TWL4030 Resource %d group could not be read\n", @@ -352,7 +334,7 @@ static int twl4030_configure_resource(struct twl4030_resconfig *rconfig) if (rconfig->devgroup != TWL4030_RESCONFIG_UNDEF) { grp &= ~DEV_GRP_MASK; grp |= rconfig->devgroup << DEV_GRP_SHIFT; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, + err = twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, grp, rconfig_addr + DEV_GRP_OFFSET); if (err < 0) { pr_err("TWL4030 failed to program devgroup\n"); @@ -361,7 +343,7 @@ static int twl4030_configure_resource(struct twl4030_resconfig *rconfig) } /* Set resource types */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &type, + err = twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &type, rconfig_addr + TYPE_OFFSET); if (err < 0) { pr_err("TWL4030 Resource %d type could not be read\n", @@ -379,7 +361,7 @@ static int twl4030_configure_resource(struct twl4030_resconfig *rconfig) type |= rconfig->type2 << TYPE2_SHIFT; } - err = twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, + err = twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, type, rconfig_addr + TYPE_OFFSET); if (err < 0) { pr_err("TWL4030 failed to program resource type\n"); @@ -387,7 +369,7 @@ static int twl4030_configure_resource(struct twl4030_resconfig *rconfig) } /* Set remap states */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_RECEIVER, &remap, + err = twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &remap, rconfig_addr + REMAP_OFFSET); if (err < 0) { pr_err("TWL4030 Resource %d remap could not be read\n", @@ -405,7 +387,7 @@ static int twl4030_configure_resource(struct twl4030_resconfig *rconfig) remap |= rconfig->remap_sleep << SLEEP_STATE_SHIFT; } - err = twl_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, + err = twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, remap, rconfig_addr + REMAP_OFFSET); if (err < 0) { @@ -463,49 +445,47 @@ int twl4030_remove_script(u8 flags) { int err = 0; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG1, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) { pr_err("twl4030: unable to unlock PROTECT_KEY\n"); return err; } - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG2, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) { pr_err("twl4030: unable to unlock PROTECT_KEY\n"); return err; } if (flags & TWL4030_WRST_SCRIPT) { - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, END_OF_SCRIPT, - R_SEQ_ADD_WARM); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, END_OF_SCRIPT, + R_SEQ_ADD_WARM); if (err) return err; } if (flags & TWL4030_WAKEUP12_SCRIPT) { - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, END_OF_SCRIPT, - R_SEQ_ADD_S2A12); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, END_OF_SCRIPT, + R_SEQ_ADD_S2A12); if (err) return err; } if (flags & TWL4030_WAKEUP3_SCRIPT) { - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, END_OF_SCRIPT, - R_SEQ_ADD_S2A3); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, END_OF_SCRIPT, + R_SEQ_ADD_S2A3); if (err) return err; } if (flags & TWL4030_SLEEP_SCRIPT) { - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, END_OF_SCRIPT, - R_SEQ_ADD_A2S); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, END_OF_SCRIPT, + R_SEQ_ADD_A2S); if (err) return err; } - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) pr_err("TWL4030 Unable to relock registers\n"); @@ -521,7 +501,7 @@ void twl4030_power_off(void) { int err; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, PWR_DEVOFF, + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, PWR_DEVOFF, TWL4030_PM_MASTER_P1_SW_EVENTS); if (err) pr_err("TWL4030 Unable to power off\n"); @@ -534,15 +514,13 @@ void twl4030_power_init(struct twl4030_power_data *twl4030_scripts) struct twl4030_resconfig *resconfig; u8 val, address = twl4030_start_script_address; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG1, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) goto unlock; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, - TWL4030_PM_MASTER_KEY_CFG2, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) goto unlock; @@ -567,14 +545,14 @@ void twl4030_power_init(struct twl4030_power_data *twl4030_scripts) /* Board has to be wired properly to use this feature */ if (twl4030_scripts->use_poweroff && !pm_power_off) { /* Default for SEQ_OFFSYNC is set, lets ensure this */ - err = twl_i2c_read_u8(TWL4030_MODULE_PM_MASTER, &val, + err = twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &val, TWL4030_PM_MASTER_CFG_P123_TRANSITION); if (err) { pr_warning("TWL4030 Unable to read registers\n"); } else if (!(val & SEQ_OFFSYNC)) { val |= SEQ_OFFSYNC; - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, val, + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, val, TWL4030_PM_MASTER_CFG_P123_TRANSITION); if (err) { pr_err("TWL4030 Unable to setup SEQ_OFFSYNC\n"); @@ -586,8 +564,8 @@ void twl4030_power_init(struct twl4030_power_data *twl4030_scripts) } relock: - err = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, - TWL4030_PM_MASTER_PROTECT_KEY); + err = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0, + TWL4030_PM_MASTER_PROTECT_KEY); if (err) pr_err("TWL4030 Unable to relock registers\n"); return; diff --git a/drivers/mfd/twl6030-irq.c b/drivers/mfd/twl6030-irq.c index b76902f1e44a..277a8dba42d5 100644 --- a/drivers/mfd/twl6030-irq.c +++ b/drivers/mfd/twl6030-irq.c @@ -355,7 +355,7 @@ int twl6030_init_irq(struct device *dev, int irq_num) static struct irq_chip twl6030_irq_chip; int status = 0; int i; - u8 mask[4]; + u8 mask[3]; nr_irqs = TWL6030_NR_IRQS; @@ -370,9 +370,9 @@ int twl6030_init_irq(struct device *dev, int irq_num) irq_end = irq_base + nr_irqs; + mask[0] = 0xFF; mask[1] = 0xFF; mask[2] = 0xFF; - mask[3] = 0xFF; /* mask all int lines */ twl_i2c_write(TWL_MODULE_PIH, &mask[0], REG_INT_MSK_LINE_A, 3); diff --git a/drivers/mfd/twl6040-irq.c b/drivers/mfd/twl6040-irq.c deleted file mode 100644 index 4b42543da228..000000000000 --- a/drivers/mfd/twl6040-irq.c +++ /dev/null @@ -1,205 +0,0 @@ -/* - * Interrupt controller support for TWL6040 - * - * Author: Misael Lopez Cruz <misael.lopez@ti.com> - * - * Copyright: (C) 2011 Texas Instruments, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/err.h> -#include <linux/irq.h> -#include <linux/of.h> -#include <linux/irqdomain.h> -#include <linux/interrupt.h> -#include <linux/mfd/core.h> -#include <linux/mfd/twl6040.h> - -struct twl6040_irq_data { - int mask; - int status; -}; - -static struct twl6040_irq_data twl6040_irqs[] = { - { - .mask = TWL6040_THMSK, - .status = TWL6040_THINT, - }, - { - .mask = TWL6040_PLUGMSK, - .status = TWL6040_PLUGINT | TWL6040_UNPLUGINT, - }, - { - .mask = TWL6040_HOOKMSK, - .status = TWL6040_HOOKINT, - }, - { - .mask = TWL6040_HFMSK, - .status = TWL6040_HFINT, - }, - { - .mask = TWL6040_VIBMSK, - .status = TWL6040_VIBINT, - }, - { - .mask = TWL6040_READYMSK, - .status = TWL6040_READYINT, - }, -}; - -static inline -struct twl6040_irq_data *irq_to_twl6040_irq(struct twl6040 *twl6040, - int irq) -{ - return &twl6040_irqs[irq - twl6040->irq_base]; -} - -static void twl6040_irq_lock(struct irq_data *data) -{ - struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data); - - mutex_lock(&twl6040->irq_mutex); -} - -static void twl6040_irq_sync_unlock(struct irq_data *data) -{ - struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data); - - /* write back to hardware any change in irq mask */ - if (twl6040->irq_masks_cur != twl6040->irq_masks_cache) { - twl6040->irq_masks_cache = twl6040->irq_masks_cur; - twl6040_reg_write(twl6040, TWL6040_REG_INTMR, - twl6040->irq_masks_cur); - } - - mutex_unlock(&twl6040->irq_mutex); -} - -static void twl6040_irq_enable(struct irq_data *data) -{ - struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data); - struct twl6040_irq_data *irq_data = irq_to_twl6040_irq(twl6040, - data->irq); - - twl6040->irq_masks_cur &= ~irq_data->mask; -} - -static void twl6040_irq_disable(struct irq_data *data) -{ - struct twl6040 *twl6040 = irq_data_get_irq_chip_data(data); - struct twl6040_irq_data *irq_data = irq_to_twl6040_irq(twl6040, - data->irq); - - twl6040->irq_masks_cur |= irq_data->mask; -} - -static struct irq_chip twl6040_irq_chip = { - .name = "twl6040", - .irq_bus_lock = twl6040_irq_lock, - .irq_bus_sync_unlock = twl6040_irq_sync_unlock, - .irq_enable = twl6040_irq_enable, - .irq_disable = twl6040_irq_disable, -}; - -static irqreturn_t twl6040_irq_thread(int irq, void *data) -{ - struct twl6040 *twl6040 = data; - u8 intid; - int i; - - intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); - - /* apply masking and report (backwards to handle READYINT first) */ - for (i = ARRAY_SIZE(twl6040_irqs) - 1; i >= 0; i--) { - if (twl6040->irq_masks_cur & twl6040_irqs[i].mask) - intid &= ~twl6040_irqs[i].status; - if (intid & twl6040_irqs[i].status) - handle_nested_irq(twl6040->irq_base + i); - } - - /* ack unmasked irqs */ - twl6040_reg_write(twl6040, TWL6040_REG_INTID, intid); - - return IRQ_HANDLED; -} - -int twl6040_irq_init(struct twl6040 *twl6040) -{ - struct device_node *node = twl6040->dev->of_node; - int i, nr_irqs, irq_base, ret; - u8 val; - - mutex_init(&twl6040->irq_mutex); - - /* mask the individual interrupt sources */ - twl6040->irq_masks_cur = TWL6040_ALLINT_MSK; - twl6040->irq_masks_cache = TWL6040_ALLINT_MSK; - twl6040_reg_write(twl6040, TWL6040_REG_INTMR, TWL6040_ALLINT_MSK); - - nr_irqs = ARRAY_SIZE(twl6040_irqs); - - irq_base = irq_alloc_descs(-1, 0, nr_irqs, 0); - if (IS_ERR_VALUE(irq_base)) { - dev_err(twl6040->dev, "Fail to allocate IRQ descs\n"); - return irq_base; - } - twl6040->irq_base = irq_base; - - irq_domain_add_legacy(node, ARRAY_SIZE(twl6040_irqs), irq_base, 0, - &irq_domain_simple_ops, NULL); - - /* Register them with genirq */ - for (i = irq_base; i < irq_base + nr_irqs; i++) { - irq_set_chip_data(i, twl6040); - irq_set_chip_and_handler(i, &twl6040_irq_chip, - handle_level_irq); - irq_set_nested_thread(i, 1); - - /* ARM needs us to explicitly flag the IRQ as valid - * and will set them noprobe when we do so. */ -#ifdef CONFIG_ARM - set_irq_flags(i, IRQF_VALID); -#else - irq_set_noprobe(i); -#endif - } - - ret = request_threaded_irq(twl6040->irq, NULL, twl6040_irq_thread, - IRQF_ONESHOT, "twl6040", twl6040); - if (ret) { - dev_err(twl6040->dev, "failed to request IRQ %d: %d\n", - twl6040->irq, ret); - return ret; - } - - /* reset interrupts */ - val = twl6040_reg_read(twl6040, TWL6040_REG_INTID); - - /* interrupts cleared on write */ - twl6040_clear_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_INTCLRMODE); - - return 0; -} -EXPORT_SYMBOL(twl6040_irq_init); - -void twl6040_irq_exit(struct twl6040 *twl6040) -{ - free_irq(twl6040->irq, twl6040); -} -EXPORT_SYMBOL(twl6040_irq_exit); diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040.c index 3f2a1cf02fc0..583be76e36a8 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040.c @@ -37,7 +37,6 @@ #include <linux/delay.h> #include <linux/i2c.h> #include <linux/regmap.h> -#include <linux/err.h> #include <linux/mfd/core.h> #include <linux/mfd/twl6040.h> #include <linux/regulator/consumer.h> @@ -104,7 +103,7 @@ int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) EXPORT_SYMBOL(twl6040_clear_bits); /* twl6040 codec manual power-up sequence */ -static int twl6040_power_up(struct twl6040 *twl6040) +static int twl6040_power_up_manual(struct twl6040 *twl6040) { u8 ldoctl, ncpctl, lppllctl; int ret; @@ -158,11 +157,12 @@ ncp_err: ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); + dev_err(twl6040->dev, "manual power-up failed\n"); return ret; } /* twl6040 manual power-down sequence */ -static void twl6040_power_down(struct twl6040 *twl6040) +static void twl6040_power_down_manual(struct twl6040 *twl6040) { u8 ncpctl, ldoctl, lppllctl; @@ -192,45 +192,48 @@ static void twl6040_power_down(struct twl6040 *twl6040) twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); } -static irqreturn_t twl6040_naudint_handler(int irq, void *data) +static irqreturn_t twl6040_readyint_handler(int irq, void *data) { struct twl6040 *twl6040 = data; - u8 intid, status; - intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); + complete(&twl6040->ready); - if (intid & TWL6040_READYINT) - complete(&twl6040->ready); + return IRQ_HANDLED; +} - if (intid & TWL6040_THINT) { - status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); - if (status & TWL6040_TSHUTDET) { - dev_warn(twl6040->dev, - "Thermal shutdown, powering-off"); - twl6040_power(twl6040, 0); - } else { - dev_warn(twl6040->dev, - "Leaving thermal shutdown, powering-on"); - twl6040_power(twl6040, 1); - } +static irqreturn_t twl6040_thint_handler(int irq, void *data) +{ + struct twl6040 *twl6040 = data; + u8 status; + + status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); + if (status & TWL6040_TSHUTDET) { + dev_warn(twl6040->dev, "Thermal shutdown, powering-off"); + twl6040_power(twl6040, 0); + } else { + dev_warn(twl6040->dev, "Leaving thermal shutdown, powering-on"); + twl6040_power(twl6040, 1); } return IRQ_HANDLED; } -static int twl6040_power_up_completion(struct twl6040 *twl6040, - int naudint) +static int twl6040_power_up_automatic(struct twl6040 *twl6040) { int time_left; - u8 intid; + + gpio_set_value(twl6040->audpwron, 1); time_left = wait_for_completion_timeout(&twl6040->ready, msecs_to_jiffies(144)); if (!time_left) { + u8 intid; + + dev_warn(twl6040->dev, "timeout waiting for READYINT\n"); intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); if (!(intid & TWL6040_READYINT)) { - dev_err(twl6040->dev, - "timeout waiting for READYINT\n"); + dev_err(twl6040->dev, "automatic power-up failed\n"); + gpio_set_value(twl6040->audpwron, 0); return -ETIMEDOUT; } } @@ -240,8 +243,6 @@ static int twl6040_power_up_completion(struct twl6040 *twl6040, int twl6040_power(struct twl6040 *twl6040, int on) { - int audpwron = twl6040->audpwron; - int naudint = twl6040->irq; int ret = 0; mutex_lock(&twl6040->mutex); @@ -251,23 +252,17 @@ int twl6040_power(struct twl6040 *twl6040, int on) if (twl6040->power_count++) goto out; - if (gpio_is_valid(audpwron)) { - /* use AUDPWRON line */ - gpio_set_value(audpwron, 1); - /* wait for power-up completion */ - ret = twl6040_power_up_completion(twl6040, naudint); + if (gpio_is_valid(twl6040->audpwron)) { + /* use automatic power-up sequence */ + ret = twl6040_power_up_automatic(twl6040); if (ret) { - dev_err(twl6040->dev, - "automatic power-down failed\n"); twl6040->power_count = 0; goto out; } } else { /* use manual power-up sequence */ - ret = twl6040_power_up(twl6040); + ret = twl6040_power_up_manual(twl6040); if (ret) { - dev_err(twl6040->dev, - "manual power-up failed\n"); twl6040->power_count = 0; goto out; } @@ -288,15 +283,15 @@ int twl6040_power(struct twl6040 *twl6040, int on) if (--twl6040->power_count) goto out; - if (gpio_is_valid(audpwron)) { + if (gpio_is_valid(twl6040->audpwron)) { /* use AUDPWRON line */ - gpio_set_value(audpwron, 0); + gpio_set_value(twl6040->audpwron, 0); /* power-down sequence latency */ usleep_range(500, 700); } else { /* use manual power-down sequence */ - twl6040_power_down(twl6040); + twl6040_power_down_manual(twl6040); } twl6040->sysclk = 0; twl6040->mclk = 0; @@ -503,6 +498,25 @@ static struct regmap_config twl6040_regmap_config = { .readable_reg = twl6040_readable_reg, }; +static const struct regmap_irq twl6040_irqs[] = { + { .reg_offset = 0, .mask = TWL6040_THINT, }, + { .reg_offset = 0, .mask = TWL6040_PLUGINT | TWL6040_UNPLUGINT, }, + { .reg_offset = 0, .mask = TWL6040_HOOKINT, }, + { .reg_offset = 0, .mask = TWL6040_HFINT, }, + { .reg_offset = 0, .mask = TWL6040_VIBINT, }, + { .reg_offset = 0, .mask = TWL6040_READYINT, }, +}; + +static struct regmap_irq_chip twl6040_irq_chip = { + .name = "twl6040", + .irqs = twl6040_irqs, + .num_irqs = ARRAY_SIZE(twl6040_irqs), + + .num_regs = 1, + .status_base = TWL6040_REG_INTID, + .mask_base = TWL6040_REG_INTMR, +}; + static int __devinit twl6040_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -578,18 +592,31 @@ static int __devinit twl6040_probe(struct i2c_client *client, goto gpio_err; } - /* codec interrupt */ - ret = twl6040_irq_init(twl6040); - if (ret) + ret = regmap_add_irq_chip(twl6040->regmap, twl6040->irq, + IRQF_ONESHOT, 0, &twl6040_irq_chip, + &twl6040->irq_data); + if (ret < 0) goto irq_init_err; - ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_READY, - NULL, twl6040_naudint_handler, IRQF_ONESHOT, + twl6040->irq_ready = regmap_irq_get_virq(twl6040->irq_data, + TWL6040_IRQ_READY); + twl6040->irq_th = regmap_irq_get_virq(twl6040->irq_data, + TWL6040_IRQ_TH); + + ret = request_threaded_irq(twl6040->irq_ready, NULL, + twl6040_readyint_handler, IRQF_ONESHOT, "twl6040_irq_ready", twl6040); if (ret) { - dev_err(twl6040->dev, "READY IRQ request failed: %d\n", - ret); - goto irq_err; + dev_err(twl6040->dev, "READY IRQ request failed: %d\n", ret); + goto readyirq_err; + } + + ret = request_threaded_irq(twl6040->irq_th, NULL, + twl6040_thint_handler, IRQF_ONESHOT, + "twl6040_irq_th", twl6040); + if (ret) { + dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret); + goto thirq_err; } /* dual-access registers controlled by I2C only */ @@ -601,7 +628,7 @@ static int __devinit twl6040_probe(struct i2c_client *client, * The ASoC codec can work without pdata, pass the platform_data only if * it has been provided. */ - irq = twl6040->irq_base + TWL6040_IRQ_PLUG; + irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_PLUG); cell = &twl6040->cells[children]; cell->name = "twl6040-codec"; twl6040_codec_rsrc[0].start = irq; @@ -615,7 +642,7 @@ static int __devinit twl6040_probe(struct i2c_client *client, children++; if (twl6040_has_vibra(pdata, node)) { - irq = twl6040->irq_base + TWL6040_IRQ_VIB; + irq = regmap_irq_get_virq(twl6040->irq_data, TWL6040_IRQ_VIB); cell = &twl6040->cells[children]; cell->name = "twl6040-vibra"; @@ -654,9 +681,11 @@ static int __devinit twl6040_probe(struct i2c_client *client, return 0; mfd_err: - free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); -irq_err: - twl6040_irq_exit(twl6040); + free_irq(twl6040->irq_th, twl6040); +thirq_err: + free_irq(twl6040->irq_ready, twl6040); +readyirq_err: + regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); irq_init_err: if (gpio_is_valid(twl6040->audpwron)) gpio_free(twl6040->audpwron); @@ -680,8 +709,9 @@ static int __devexit twl6040_remove(struct i2c_client *client) if (gpio_is_valid(twl6040->audpwron)) gpio_free(twl6040->audpwron); - free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); - twl6040_irq_exit(twl6040); + free_irq(twl6040->irq_ready, twl6040); + free_irq(twl6040->irq_th, twl6040); + regmap_del_irq_chip(twl6040->irq, twl6040->irq_data); mfd_remove_devices(&client->dev); i2c_set_clientdata(client, NULL); diff --git a/drivers/mfd/viperboard.c b/drivers/mfd/viperboard.c new file mode 100644 index 000000000000..af2a6703f34f --- /dev/null +++ b/drivers/mfd/viperboard.c @@ -0,0 +1,137 @@ +/* + * Nano River Technologies viperboard driver + * + * This is the core driver for the viperboard. There are cell drivers + * available for I2C, ADC and both GPIOs. SPI is not yet supported. + * The drivers do not support all features the board exposes. See user + * manual of the viperboard. + * + * (C) 2012 by Lemonage GmbH + * Author: Lars Poeschel <poeschel@lemonage.de> + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/types.h> +#include <linux/mutex.h> + +#include <linux/mfd/core.h> +#include <linux/mfd/viperboard.h> + +#include <linux/usb.h> + + +static const struct usb_device_id vprbrd_table[] = { + { USB_DEVICE(0x2058, 0x1005) }, /* Nano River Technologies */ + { } /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(usb, vprbrd_table); + +static struct mfd_cell vprbrd_devs[] = { + { + .name = "viperboard-gpio", + }, + { + .name = "viperboard-i2c", + }, + { + .name = "viperboard-adc", + }, +}; + +static int vprbrd_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct vprbrd *vb; + + u16 version = 0; + int pipe, ret; + + /* allocate memory for our device state and initialize it */ + vb = kzalloc(sizeof(*vb), GFP_KERNEL); + if (vb == NULL) { + dev_err(&interface->dev, "Out of memory\n"); + return -ENOMEM; + } + + mutex_init(&vb->lock); + + vb->usb_dev = usb_get_dev(interface_to_usbdev(interface)); + + /* save our data pointer in this interface device */ + usb_set_intfdata(interface, vb); + dev_set_drvdata(&vb->pdev.dev, vb); + + /* get version information, major first, minor then */ + pipe = usb_rcvctrlpipe(vb->usb_dev, 0); + ret = usb_control_msg(vb->usb_dev, pipe, VPRBRD_USB_REQUEST_MAJOR, + VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, vb->buf, 1, + VPRBRD_USB_TIMEOUT_MS); + if (ret == 1) + version = vb->buf[0]; + + ret = usb_control_msg(vb->usb_dev, pipe, VPRBRD_USB_REQUEST_MINOR, + VPRBRD_USB_TYPE_IN, 0x0000, 0x0000, vb->buf, 1, + VPRBRD_USB_TIMEOUT_MS); + if (ret == 1) { + version <<= 8; + version = version | vb->buf[0]; + } + + dev_info(&interface->dev, + "version %x.%02x found at bus %03d address %03d\n", + version >> 8, version & 0xff, + vb->usb_dev->bus->busnum, vb->usb_dev->devnum); + + ret = mfd_add_devices(&interface->dev, -1, vprbrd_devs, + ARRAY_SIZE(vprbrd_devs), NULL, 0, NULL); + if (ret != 0) { + dev_err(&interface->dev, "Failed to add mfd devices to core."); + goto error; + } + + return 0; + +error: + if (vb) { + usb_put_dev(vb->usb_dev); + kfree(vb); + } + + return ret; +} + +static void vprbrd_disconnect(struct usb_interface *interface) +{ + struct vprbrd *vb = usb_get_intfdata(interface); + + mfd_remove_devices(&interface->dev); + usb_set_intfdata(interface, NULL); + usb_put_dev(vb->usb_dev); + kfree(vb); + + dev_dbg(&interface->dev, "disconnected\n"); +} + +static struct usb_driver vprbrd_driver = { + .name = "viperboard", + .probe = vprbrd_probe, + .disconnect = vprbrd_disconnect, + .id_table = vprbrd_table, +}; + +module_usb_driver(vprbrd_driver); + +MODULE_DESCRIPTION("Nano River Technologies viperboard mfd core driver"); +MODULE_AUTHOR("Lars Poeschel <poeschel@lemonage.de>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index 3141c4a173a7..088872ab6338 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -56,6 +56,18 @@ static const struct reg_default wm5102_reva_patch[] = { { 0x80, 0x0000 }, }; +static const struct reg_default wm5102_revb_patch[] = { + { 0x80, 0x0003 }, + { 0x081, 0xE022 }, + { 0x410, 0x6080 }, + { 0x418, 0x6080 }, + { 0x420, 0x6080 }, + { 0x428, 0xC000 }, + { 0x441, 0x8014 }, + { 0x458, 0x000b }, + { 0x80, 0x0000 }, +}; + /* We use a function so we can use ARRAY_SIZE() */ int wm5102_patch(struct arizona *arizona) { @@ -65,7 +77,9 @@ int wm5102_patch(struct arizona *arizona) wm5102_reva_patch, ARRAY_SIZE(wm5102_reva_patch)); default: - return 0; + return regmap_register_patch(arizona->regmap, + wm5102_revb_patch, + ARRAY_SIZE(wm5102_revb_patch)); } } @@ -291,6 +305,7 @@ static const struct reg_default wm5102_reg_default[] = { { 0x000001AA, 0x0004 }, /* R426 - FLL2 GPIO Clock */ { 0x00000200, 0x0006 }, /* R512 - Mic Charge Pump 1 */ { 0x00000210, 0x00D4 }, /* R528 - LDO1 Control 1 */ + { 0x00000212, 0x0001 }, /* R530 - LDO1 Control 2 */ { 0x00000213, 0x0344 }, /* R531 - LDO2 Control 1 */ { 0x00000218, 0x01A6 }, /* R536 - Mic Bias Ctrl 1 */ { 0x00000219, 0x01A6 }, /* R537 - Mic Bias Ctrl 2 */ @@ -1056,6 +1071,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) case ARIZONA_FLL1_CONTROL_5: case ARIZONA_FLL1_CONTROL_6: case ARIZONA_FLL1_LOOP_FILTER_TEST_1: + case ARIZONA_FLL1_NCO_TEST_0: case ARIZONA_FLL1_SYNCHRONISER_1: case ARIZONA_FLL1_SYNCHRONISER_2: case ARIZONA_FLL1_SYNCHRONISER_3: @@ -1071,6 +1087,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) case ARIZONA_FLL2_CONTROL_5: case ARIZONA_FLL2_CONTROL_6: case ARIZONA_FLL2_LOOP_FILTER_TEST_1: + case ARIZONA_FLL2_NCO_TEST_0: case ARIZONA_FLL2_SYNCHRONISER_1: case ARIZONA_FLL2_SYNCHRONISER_2: case ARIZONA_FLL2_SYNCHRONISER_3: @@ -1805,6 +1822,7 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) case ARIZONA_DSP1_CLOCKING_1: case ARIZONA_DSP1_STATUS_1: case ARIZONA_DSP1_STATUS_2: + case ARIZONA_DSP1_STATUS_3: return true; default: return false; @@ -1813,15 +1831,23 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg) static bool wm5102_volatile_register(struct device *dev, unsigned int reg) { + if (reg > 0xffff) + return true; + switch (reg) { case ARIZONA_SOFTWARE_RESET: case ARIZONA_DEVICE_REVISION: case ARIZONA_OUTPUT_STATUS_1: + case ARIZONA_RAW_OUTPUT_STATUS_1: + case ARIZONA_SLIMBUS_RX_PORT_STATUS: + case ARIZONA_SLIMBUS_TX_PORT_STATUS: case ARIZONA_SAMPLE_RATE_1_STATUS: case ARIZONA_SAMPLE_RATE_2_STATUS: case ARIZONA_SAMPLE_RATE_3_STATUS: case ARIZONA_HAPTICS_STATUS: case ARIZONA_ASYNC_SAMPLE_RATE_1_STATUS: + case ARIZONA_FLL1_NCO_TEST_0: + case ARIZONA_FLL2_NCO_TEST_0: case ARIZONA_FX_CTRL2: case ARIZONA_INTERRUPT_STATUS_1: case ARIZONA_INTERRUPT_STATUS_2: @@ -1847,6 +1873,7 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg) case ARIZONA_AOD_IRQ_RAW_STATUS: case ARIZONA_DSP1_STATUS_1: case ARIZONA_DSP1_STATUS_2: + case ARIZONA_DSP1_STATUS_3: case ARIZONA_HEADPHONE_DETECT_2: case ARIZONA_MIC_DETECT_3: return true; @@ -1855,12 +1882,14 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg) } } +#define WM5102_MAX_REGISTER 0x1a8fff + const struct regmap_config wm5102_spi_regmap = { .reg_bits = 32, .pad_bits = 16, .val_bits = 16, - .max_register = ARIZONA_DSP1_STATUS_2, + .max_register = WM5102_MAX_REGISTER, .readable_reg = wm5102_readable_register, .volatile_reg = wm5102_volatile_register, @@ -1874,7 +1903,7 @@ const struct regmap_config wm5102_i2c_regmap = { .reg_bits = 32, .val_bits = 16, - .max_register = ARIZONA_DSP1_STATUS_2, + .max_register = WM5102_MAX_REGISTER, .readable_reg = wm5102_readable_register, .volatile_reg = wm5102_volatile_register, diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index bcb226ff9d2b..57c488d42d3e 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -535,11 +535,10 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq) break; case 2: case 3: + default: regmap_patch = wm8994_revc_patch; patch_regs = ARRAY_SIZE(wm8994_revc_patch); break; - default: - break; } break; @@ -558,17 +557,9 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq) /* Revision C did not change the relevant layer */ if (wm8994->revision > 1) wm8994->revision++; - switch (wm8994->revision) { - case 0: - case 1: - case 2: - case 3: - regmap_patch = wm1811_reva_patch; - patch_regs = ARRAY_SIZE(wm1811_reva_patch); - break; - default: - break; - } + + regmap_patch = wm1811_reva_patch; + patch_regs = ARRAY_SIZE(wm1811_reva_patch); break; default: diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile index b648058d7182..e4e218c930bd 100644 --- a/drivers/mmc/host/Makefile +++ b/drivers/mmc/host/Makefile @@ -49,6 +49,8 @@ obj-$(CONFIG_MMC_WMT) += wmt-sdmmc.o obj-$(CONFIG_MMC_REALTEK_PCI) += rtsx_pci_sdmmc.o +obj-$(CONFIG_MMC_REALTEK_PCI) += rtsx_pci_sdmmc.o + obj-$(CONFIG_MMC_SDHCI_PLTFM) += sdhci-pltfm.o obj-$(CONFIG_MMC_SDHCI_CNS3XXX) += sdhci-cns3xxx.o obj-$(CONFIG_MMC_SDHCI_ESDHC_IMX) += sdhci-esdhc-imx.o diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c index 12eff6f8cab7..571915dfb218 100644 --- a/drivers/mmc/host/rtsx_pci_sdmmc.c +++ b/drivers/mmc/host/rtsx_pci_sdmmc.c @@ -21,6 +21,7 @@ */ #include <linux/module.h> +#include <linux/slab.h> #include <linux/highmem.h> #include <linux/delay.h> #include <linux/platform_device.h> @@ -382,8 +383,6 @@ static int sd_rw_multi(struct realtek_pci_sdmmc *host, struct mmc_request *mrq) 0xFF, (u8)data->blocks); rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_BLOCK_CNT_H, 0xFF, (u8)(data->blocks >> 8)); - rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, - CARD_DATA_SOURCE, 0x01, RING_BUFFER); rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, IRQSTAT0, DMA_DONE_INT, DMA_DONE_INT); @@ -407,6 +406,7 @@ static int sd_rw_multi(struct realtek_pci_sdmmc *host, struct mmc_request *mrq) rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CARD_DATA_SOURCE, 0x01, RING_BUFFER); + rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG2, 0xFF, cfg2); rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_TRANSFER, 0xFF, trans_mode | SD_TRANSFER_START); rtsx_pci_add_cmd(pcr, CHECK_REG_CMD, SD_TRANSFER, diff --git a/drivers/power/da9052-battery.c b/drivers/power/da9052-battery.c index bb0df8917adc..3c5c2e459d73 100644 --- a/drivers/power/da9052-battery.c +++ b/drivers/power/da9052-battery.c @@ -440,8 +440,10 @@ static int da9052_bat_check_health(struct da9052_battery *bat, int *health) static irqreturn_t da9052_bat_irq(int irq, void *data) { struct da9052_battery *bat = data; + int virq; - irq -= bat->da9052->irq_base; + virq = regmap_irq_get_virq(bat->da9052->irq_data, irq); + irq -= virq; if (irq == DA9052_IRQ_CHGEND) bat->status = POWER_SUPPLY_STATUS_FULL; @@ -567,7 +569,7 @@ static struct power_supply template_battery = { .get_property = da9052_bat_get_property, }; -static const char *const da9052_bat_irqs[] = { +static char *da9052_bat_irqs[] = { "BATT TEMP", "DCIN DET", "DCIN REM", @@ -576,12 +578,20 @@ static const char *const da9052_bat_irqs[] = { "CHG END", }; +static int da9052_bat_irq_bits[] = { + DA9052_IRQ_TBAT, + DA9052_IRQ_DCIN, + DA9052_IRQ_DCINREM, + DA9052_IRQ_VBUS, + DA9052_IRQ_VBUSREM, + DA9052_IRQ_CHGEND, +}; + static s32 da9052_bat_probe(struct platform_device *pdev) { struct da9052_pdata *pdata; struct da9052_battery *bat; int ret; - int irq; int i; bat = kzalloc(sizeof(struct da9052_battery), GFP_KERNEL); @@ -602,15 +612,14 @@ static s32 da9052_bat_probe(struct platform_device *pdev) bat->psy.use_for_apm = 1; for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++) { - irq = platform_get_irq_byname(pdev, da9052_bat_irqs[i]); - ret = request_threaded_irq(bat->da9052->irq_base + irq, - NULL, da9052_bat_irq, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - da9052_bat_irqs[i], bat); + ret = da9052_request_irq(bat->da9052, + da9052_bat_irq_bits[i], da9052_bat_irqs[i], + da9052_bat_irq, bat); + if (ret != 0) { dev_err(bat->da9052->dev, - "DA9052 failed to request %s IRQ %d: %d\n", - da9052_bat_irqs[i], irq, ret); + "DA9052 failed to request %s IRQ: %d\n", + da9052_bat_irqs[i], ret); goto err; } } @@ -623,23 +632,20 @@ static s32 da9052_bat_probe(struct platform_device *pdev) return 0; err: - while (--i >= 0) { - irq = platform_get_irq_byname(pdev, da9052_bat_irqs[i]); - free_irq(bat->da9052->irq_base + irq, bat); - } + while (--i >= 0) + da9052_free_irq(bat->da9052, da9052_bat_irq_bits[i], bat); + kfree(bat); return ret; } static int da9052_bat_remove(struct platform_device *pdev) { int i; - int irq; struct da9052_battery *bat = platform_get_drvdata(pdev); - for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++) { - irq = platform_get_irq_byname(pdev, da9052_bat_irqs[i]); - free_irq(bat->da9052->irq_base + irq, bat); - } + for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++) + da9052_free_irq(bat->da9052, da9052_bat_irq_bits[i], bat); + power_supply_unregister(&bat->psy); kfree(bat); diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c index 9277d945bf48..8b7464c8b5cf 100644 --- a/drivers/rtc/rtc-twl.c +++ b/drivers/rtc/rtc-twl.c @@ -233,7 +233,7 @@ static int twl_rtc_alarm_irq_enable(struct device *dev, unsigned enabled) */ static int twl_rtc_read_time(struct device *dev, struct rtc_time *tm) { - unsigned char rtc_data[ALL_TIME_REGS + 1]; + unsigned char rtc_data[ALL_TIME_REGS]; int ret; u8 save_control; u8 rtc_control; @@ -300,15 +300,15 @@ static int twl_rtc_read_time(struct device *dev, struct rtc_time *tm) static int twl_rtc_set_time(struct device *dev, struct rtc_time *tm) { unsigned char save_control; - unsigned char rtc_data[ALL_TIME_REGS + 1]; + unsigned char rtc_data[ALL_TIME_REGS]; int ret; - rtc_data[1] = bin2bcd(tm->tm_sec); - rtc_data[2] = bin2bcd(tm->tm_min); - rtc_data[3] = bin2bcd(tm->tm_hour); - rtc_data[4] = bin2bcd(tm->tm_mday); - rtc_data[5] = bin2bcd(tm->tm_mon + 1); - rtc_data[6] = bin2bcd(tm->tm_year - 100); + rtc_data[0] = bin2bcd(tm->tm_sec); + rtc_data[1] = bin2bcd(tm->tm_min); + rtc_data[2] = bin2bcd(tm->tm_hour); + rtc_data[3] = bin2bcd(tm->tm_mday); + rtc_data[4] = bin2bcd(tm->tm_mon + 1); + rtc_data[5] = bin2bcd(tm->tm_year - 100); /* Stop RTC while updating the TC registers */ ret = twl_rtc_read_u8(&save_control, REG_RTC_CTRL_REG); @@ -341,7 +341,7 @@ out: */ static int twl_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm) { - unsigned char rtc_data[ALL_TIME_REGS + 1]; + unsigned char rtc_data[ALL_TIME_REGS]; int ret; ret = twl_i2c_read(TWL_MODULE_RTC, rtc_data, @@ -368,19 +368,19 @@ static int twl_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm) static int twl_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) { - unsigned char alarm_data[ALL_TIME_REGS + 1]; + unsigned char alarm_data[ALL_TIME_REGS]; int ret; ret = twl_rtc_alarm_irq_enable(dev, 0); if (ret) goto out; - alarm_data[1] = bin2bcd(alm->time.tm_sec); - alarm_data[2] = bin2bcd(alm->time.tm_min); - alarm_data[3] = bin2bcd(alm->time.tm_hour); - alarm_data[4] = bin2bcd(alm->time.tm_mday); - alarm_data[5] = bin2bcd(alm->time.tm_mon + 1); - alarm_data[6] = bin2bcd(alm->time.tm_year - 100); + alarm_data[0] = bin2bcd(alm->time.tm_sec); + alarm_data[1] = bin2bcd(alm->time.tm_min); + alarm_data[2] = bin2bcd(alm->time.tm_hour); + alarm_data[3] = bin2bcd(alm->time.tm_mday); + alarm_data[4] = bin2bcd(alm->time.tm_mon + 1); + alarm_data[5] = bin2bcd(alm->time.tm_year - 100); /* update all the alarm registers in one shot */ ret = twl_i2c_write(TWL_MODULE_RTC, alarm_data, |