diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-ldp.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-ldp.c | 219 |
1 files changed, 216 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c index da57b0fcda14..d8bc0a7dcb8d 100644 --- a/arch/arm/mach-omap2/board-ldp.c +++ b/arch/arm/mach-omap2/board-ldp.c @@ -16,11 +16,13 @@ #include <linux/platform_device.h> #include <linux/delay.h> #include <linux/input.h> +#include <linux/gpio_keys.h> #include <linux/workqueue.h> #include <linux/err.h> #include <linux/clk.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> +#include <linux/regulator/machine.h> #include <linux/i2c/twl4030.h> #include <linux/io.h> #include <linux/smsc911x.h> @@ -39,6 +41,7 @@ #include <asm/delay.h> #include <mach/control.h> #include <mach/usb.h> +#include <mach/keypad.h> #include "mmc-twl4030.h" @@ -77,8 +80,163 @@ static struct platform_device ldp_smsc911x_device = { }, }; -static struct platform_device *ldp_devices[] __initdata = { - &ldp_smsc911x_device, +static int ldp_twl4030_keymap[] = { + KEY(0, 0, KEY_1), + KEY(1, 0, KEY_2), + KEY(2, 0, KEY_3), + KEY(0, 1, KEY_4), + KEY(1, 1, KEY_5), + KEY(2, 1, KEY_6), + KEY(3, 1, KEY_F5), + KEY(0, 2, KEY_7), + KEY(1, 2, KEY_8), + KEY(2, 2, KEY_9), + KEY(3, 2, KEY_F6), + KEY(0, 3, KEY_F7), + KEY(1, 3, KEY_0), + KEY(2, 3, KEY_F8), + PERSISTENT_KEY(4, 5), + KEY(4, 4, KEY_VOLUMEUP), + KEY(5, 5, KEY_VOLUMEDOWN), + 0 +}; + +static struct twl4030_keypad_data ldp_kp_twl4030_data = { + .rows = 6, + .cols = 6, + .keymap = ldp_twl4030_keymap, + .keymapsize = ARRAY_SIZE(ldp_twl4030_keymap), + .rep = 1, +}; + +static struct gpio_keys_button ldp_gpio_keys_buttons[] = { + [0] = { + .code = KEY_ENTER, + .gpio = 101, + .desc = "enter sw", + .active_low = 1, + .debounce_interval = 30, + }, + [1] = { + .code = KEY_F1, + .gpio = 102, + .desc = "func 1", + .active_low = 1, + .debounce_interval = 30, + }, + [2] = { + .code = KEY_F2, + .gpio = 103, + .desc = "func 2", + .active_low = 1, + .debounce_interval = 30, + }, + [3] = { + .code = KEY_F3, + .gpio = 104, + .desc = "func 3", + .active_low = 1, + .debounce_interval = 30, + }, + [4] = { + .code = KEY_F4, + .gpio = 105, + .desc = "func 4", + .active_low = 1, + .debounce_interval = 30, + }, + [5] = { + .code = KEY_LEFT, + .gpio = 106, + .desc = "left sw", + .active_low = 1, + .debounce_interval = 30, + }, + [6] = { + .code = KEY_RIGHT, + .gpio = 107, + .desc = "right sw", + .active_low = 1, + .debounce_interval = 30, + }, + [7] = { + .code = KEY_UP, + .gpio = 108, + .desc = "up sw", + .active_low = 1, + .debounce_interval = 30, + }, + [8] = { + .code = KEY_DOWN, + .gpio = 109, + .desc = "down sw", + .active_low = 1, + .debounce_interval = 30, + }, +}; + +static struct gpio_keys_platform_data ldp_gpio_keys = { + .buttons = ldp_gpio_keys_buttons, + .nbuttons = ARRAY_SIZE(ldp_gpio_keys_buttons), + .rep = 1, +}; + +static struct platform_device ldp_gpio_keys_device = { + .name = "gpio-keys", + .id = -1, + .dev = { + .platform_data = &ldp_gpio_keys, + }, +}; + +static int ts_gpio; + +/** + * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq + * + * @return - void. If request gpio fails then Flag KERN_ERR. + */ +static void ads7846_dev_init(void) +{ + if (gpio_request(ts_gpio, "ads7846 irq") < 0) { + printk(KERN_ERR "can't get ads746 pen down GPIO\n"); + return; + } + + gpio_direction_input(ts_gpio); + omap_set_gpio_debounce(ts_gpio, 1); + omap_set_gpio_debounce_time(ts_gpio, 0xa); +} + +static int ads7846_get_pendown_state(void) +{ + return !gpio_get_value(ts_gpio); +} + +static struct ads7846_platform_data tsc2046_config __initdata = { + .get_pendown_state = ads7846_get_pendown_state, + .keep_vref_on = 1, +}; + +static struct omap2_mcspi_device_config tsc2046_mcspi_config = { + .turbo_mode = 0, + .single_channel = 1, /* 0: slave, 1: master */ +}; + +static struct spi_board_info ldp_spi_board_info[] __initdata = { + [0] = { + /* + * TSC2046 operates at a max freqency of 2MHz, so + * operate slightly below at 1.5MHz + */ + .modalias = "ads7846", + .bus_num = 1, + .chip_select = 0, + .max_speed_hz = 1500000, + .controller_data = &tsc2046_mcspi_config, + .irq = 0, + .platform_data = &tsc2046_config, + }, }; static inline void __init ldp_init_smsc911x(void) @@ -122,8 +280,22 @@ static struct omap_uart_config ldp_uart_config __initdata = { .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), }; +static struct platform_device ldp_lcd_device = { + .name = "ldp_lcd", + .id = -1, +}; + +static struct omap_lcd_config ldp_lcd_config __initdata = { + .ctrl_name = "internal", +}; + static struct omap_board_config_kernel ldp_config[] __initdata = { { OMAP_TAG_UART, &ldp_uart_config }, + { OMAP_TAG_LCD, &ldp_lcd_config }, +}; + +static struct twl4030_usb_data ldp_usb_data = { + .usb_mode = T2_USB_MODE_ULPI, }; static struct twl4030_gpio_platform_data ldp_gpio_data = { @@ -132,12 +304,39 @@ static struct twl4030_gpio_platform_data ldp_gpio_data = { .irq_end = TWL4030_GPIO_IRQ_END, }; +static struct twl4030_madc_platform_data ldp_madc_data = { + .irq_line = 1, +}; + +static struct regulator_consumer_supply ldp_vmmc1_supply = { + .supply = "vmmc", +}; + +/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ +static struct regulator_init_data ldp_vmmc1 = { + .constraints = { + .min_uV = 1850000, + .max_uV = 3150000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE + | REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &ldp_vmmc1_supply, +}; + static struct twl4030_platform_data ldp_twldata = { .irq_base = TWL4030_IRQ_BASE, .irq_end = TWL4030_IRQ_END, /* platform_data for children goes here */ + .madc = &ldp_madc_data, + .usb = &ldp_usb_data, + .vmmc1 = &ldp_vmmc1, .gpio = &ldp_gpio_data, + .keypad = &ldp_kp_twl4030_data, }; static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = { @@ -168,15 +367,29 @@ static struct twl4030_hsmmc_info mmc[] __initdata = { {} /* Terminator */ }; +static struct platform_device *ldp_devices[] __initdata = { + &ldp_smsc911x_device, + &ldp_lcd_device, + &ldp_gpio_keys_device, +}; + static void __init omap_ldp_init(void) { omap_i2c_init(); platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices)); omap_board_config = ldp_config; omap_board_config_size = ARRAY_SIZE(ldp_config); + ts_gpio = 54; + ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio); + spi_register_board_info(ldp_spi_board_info, + ARRAY_SIZE(ldp_spi_board_info)); + ads7846_dev_init(); omap_serial_init(); - twl4030_mmc_init(mmc); usb_musb_init(); + + twl4030_mmc_init(mmc); + /* link regulators to MMC adapters */ + ldp_vmmc1_supply.dev = mmc[0].dev; } static void __init omap_ldp_map_io(void) |