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2014-02-24gpio: omap: Use devm_ioremap_resource()Jingoo Han1-17/+3
Use devm_ioremap_resource() in order to make the code simpler, and remove redundant return value check of platform_get_resource() because the value is checked by devm_ioremap_resource(). Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Kevin Hilman <khilman@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-24gpio: pl061: Use devm_ioremap_resource()Jingoo Han1-12/+3
Use devm_ioremap_resource() in order to make the code simpler. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-13gpio: pca953x: Fix gpio_base may not default to -1Aaron Sierra1-1/+2
If no device tree node existed for a device when CONFIG_OF_GPIO was defined, then gpio_base would not default to -1. Signed-off-by: Aaron Sierra <asierra@xes-inc.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-13gpio: pca953x: Add Exar XRA1202Aaron Sierra2-1/+4
Add Exar XRA1202 8-bit GPIO expander to supported list. Signed-off-by: Aaron Sierra <asierra@xes-inc.com> Acked-by: Graeme Smecher <gsmecher@threespeedlogic.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-13gpio: pca953x: Add NXP PCA9698Aaron Sierra2-2/+4
Add the NXP PCA9698 40-bit GPIO expander to the supported list. Note: This only enables GPIO functionality. Tested-by: Bob Schmitz <bschmitz@xes-inc.com> Signed-off-by: Aaron Sierra <asierra@xes-inc.com> Acked-by: Graeme Smecher <gsmecher@threespeedlogic.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-13gpio: pca953x: Add devices to Kconfig helpAaron Sierra2-1/+5
The pca953x driver supports tca6424 (24-bit) and pca9505 (40-bit) devices. They were the only supported devices not mentioned in the Kconfig help. Signed-off-by: Aaron Sierra <asierra@xes-inc.com> Acked-by: Graeme Smecher <gsmecher@threespeedlogic.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-13gpio: adp5588 - add support for gpio namesJean-Francois Dagenais1-0/+1
which is already found in the common header for adp5588 Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-13gpio: adp5588: get value from data out when dir is outJean-Francois Dagenais1-2/+13
As discussed here: http://ez.analog.com/message/35852, the 5587 revC and 5588 revB spec sheets contain a mistake in the GPIO_DAT_STATx register description. According to R.Shnell at ADI, as well as my own observations, it should read: "GPIO data status (shows GPIO state when read for inputs)". This commit changes the get value function accordingly. Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-12gpiolib: ACPI: remove gpio_to_desc() usageAlexandre Courbot1-1/+1
gpio_to_desc() must die. Replace one of its usage by the newly-introduced gpiochip_get_desc() function. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-12gpiolib: add gpiochip_get_desc() driver functionAlexandre Courbot1-8/+9
Some drivers dealing with a gpio_chip might need to act on its descriptors directly; one example is pinctrl drivers that need to lock a GPIO for being used as IRQ using gpiod_lock_as_irq(). This patch exports a gpiochip_get_desc() function that returns the GPIO descriptor at the requested index. It also sweeps the gpio_to_chip() function out of the consumer interface since any holder of a gpio_chip reference can manipulate its GPIOs way beyond what a consumer should be allowed to do. As a result, gpio_chip is not visible anymore to simple GPIO consumers. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-12GPIO: gpiolib: correct description of gpiod_direction_outputRahul Bedarkar1-1/+1
Signed-off-by: Rahul Bedarkar <rahulbedarkar89@gmail.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-12gpio: mvebu: use chained_irq_{enter,exit} for GIC compatibilityThomas Petazzoni1-0/+7
On currently supported SoCs, the GPIO block used on Marvell EBU SoCs is always connected to the Marvell MPIC. However, we are going to introduce the support for newer Marvell EBU SoCs that use the Cortex-A9 core, and therefore use the GIC as their main interrupt controller, to which the GPIO block controlled by the gpio-mvebu driver is connected. The GIC interrupt controller driver uses the fasteoi flow handler. In order to ensure that the eoi hook of the GIC driver gets called, the GPIO driver should call chained_irq_enter() and chained_irq_exit() in its handler. Without this, the first GPIO interrupt locks up the system because it doesn't get acked at the GIC level. This change is similar to for example commit 0d978eb7349941139241a99acf05de6dd49b78d1 ("gpio: davinci: use chained_irq_enter/chained_irq_exit API"). Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-12gpio: ich: Add output levels cache supportVincent Donnefort1-2/+19
This patch allows GPIO driver to cache GPIO_LVL output registers. The aim is to support chipsets on which GPIO_LVL value can't be read for output pins. Caching output levels implies the first output values reading as 0. The driver so can't be aware of set values GPIOs by bootloader or BIOS. Signed-off-by: Vincent Donnefort <vdonnefort@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-12gpio: ich: Add support for multiple register addressesVincent Donnefort1-12/+31
This patch introduces regs and reglen pointers which allow a chipset to have register addresses differing from ICH ones. Signed-off-by: Vincent Donnefort <vdonnefort@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-12gpio: ich: Add blink capability optionVincent Donnefort1-1/+9
This patch allows gpio_ich driver to be aware of non blink capable chipsets. Signed-off-by: Vincent Donnefort <vdonnefort@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-07gpio: make gpiod_direction_output take a logical valuePhilipp Zabel1-19/+48
The documentation was not clear about whether gpio_direction_output should take a logical value or the physical level on the output line, i.e. whether the ACTIVE_LOW status would be taken into account. This converts gpiod_direction_output to use the logical level and adds a new gpiod_direction_output_raw for the raw value. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-06gpio: generic: clamp retured value to [0,1]Linus Walleij1-1/+1
The generic GPIO would return 0 for low generic GPIO, and something != 0 for high GPIO. Let's make this sane by clamping the returned value to [0,1]. Reported-by: Evgeny Boger <boger@contactless.ru> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-06gpio: clps711x: Add missing .owner to struct gpio_chipAxel Lin1-0/+1
Add missing .owner of struct gpio_chip. This prevents the module from being removed from underneath its users. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-06gpio: pl061: Select IRQ_DOMAIN rather than GENERIC_IRQ_CHIPAxel Lin1-1/+1
commit f1f70479e999 "gpio: pl061: support irqdomain" drops the support of irq generic chip and use irqdomain instead. Thus fixes the dependency by selecting IRQ_DOMAIN rather than GENERIC_IRQ_CHIP. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-06gpio: generic: Add label to platform dataPawel Moll1-0/+2
When registering more than one platform device, it is useful to set the gpio chip label in the platform data. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-06gpio: bcm281xx: Use "unsigned gpio" consistently throughout the codeMarkus Mayer1-4/+4
This patch removes some inconsistencies caused by the use of "int gpio" in some parts of the code and "unsigned gpio" in others. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> Reviewed-by: Tim Kryger <tim.kryger@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-06gpio: gpiolib-of: Use PTR_ERR_OR_ZEROSachin Kamat1-1/+2
PTR_RET is deprecated. Use PTR_ERR_OR_ZERO instead. While at it also include missing err.h header. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-06gpio: bcm281xx: Centralize register lockingMarkus Mayer1-33/+49
Rather than unlock/re-lock for every write access, unlock a GPIO when it is requested and re-lock it when it is freed. As a result, the GPIO helper functions no longer have to deal with unlocking and re-locking the register. In addition, only unlock a specific GPIO rather than unlocking the entire GPIO bank as before. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> Reviewed-by: Tim Kryger <tim.kryger@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-06gpio: bcm281xx: Fix parameter name for GPIO_CONTROL macroMarkus Mayer1-1/+4
The GPIO_CONTROL macro returns the control register offset when given a GPIO number. Update the argument name in the macro to reflect that it takes in a GPIO number and not a bank. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> Reviewed-by: Tim Kryger <tim.kryger@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-05gpio: tb10x: GPIO_TB10X needs to select GENERIC_IRQ_CHIPAxel Lin1-0/+1
gpio-tb10x driver uses generic irq chip APIs (irq_alloc_domain_generic_chips, irq_remove_generic_chip), so it needs to select GENERIC_IRQ_CHIP to avoid build error. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-05gpio: clps711x: Add module alias to support module auto loadingAxel Lin1-0/+1
commit 55fe14ab872a "GPIO: clps711x: Rewrite driver for using generic GPIO code" allows this driver to be built as a module. Thus add module alias to support module auto loading. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-05gpio: bcm281xx: Update MODULE_AUTHORMarkus Mayer1-2/+2
Add Broadcom's upstreaming mailing list address to MODULE_AUTHOR. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-05gpio: intel-mid: fix the incorrect return of idle callbackxinhui.pan1-2/+2
intel_gpio_runtime_idle should return correct error code if it do fail. make it more correct even though -EBUSY is the most possible return value. Signed-off-by: bo.he <bo.he@intel.com> Signed-off-by: xinhui.pan <xinhuiX.pan@intel.com> Signed-off-by: David Cohen <david.a.cohen@linux.intel.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-03gpio: intel-mid: comments cleanupDavid Cohen1-6/+2
This is a simple cleanup on gpio-intel-mid.c's header comments. Signed-off-by: David Cohen <david.a.cohen@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-03gpio: pl061: remove confusing namingLinus Walleij1-3/+2
Drop the " gpio" suffix after the pl061 irq_chip name: this is only confusing: an irqchip name should be a single, short, simple string that looks nice in /proc/interrupts. Drop the nameing of each individual IRQ to "pl061" - I think this naming function is for naming the IRQ line, not for boilerplating them all with the name of the parent controller, which is already known from the .name field of the irq_chip. Cc: Haojian Zhuang <haojian.zhuang@linaro.org> Cc: Deepak Sikri <deepak.sikri@st.com> Acked-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-03gpio: pl061: refactor type settingLinus Walleij1-12/+14
Refactor this function so that I can understand it, do one big read/modify/write operation and have the bitmask in a variable instead of recalculating it every time it's needed. Cc: Haojian Zhuang <haojian.zhuang@linaro.org> Cc: Deepak Sikri <deepak.sikri@st.com> Acked-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-03gpio: pl061: lock IRQs when starting themLinus Walleij1-0/+22
This uses the new API for tagging GPIO lines as in use by IRQs. This enforces a few semantic checks on how the underlying GPIO line is used. Cc: Haojian Zhuang <haojian.zhuang@linaro.org> Cc: Deepak Sikri <deepak.sikri@st.com> Acked-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-03gpio: pl061: proper error messagesLinus Walleij1-5/+17
This makes the PL061 driver print proper error messages when probe fails, and also tell us when the chip is finally registered. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-03gpio: xtensa: fix build when XCHAL_HAVE_CP is 0Baruch Siach1-0/+16
In xtensa coprocessors may exist without coprocessor context, i.e. they cannot be disabled/enabled. In this case the RSR_CPENABLE/WSR_CPENABLE are undefined, thus breaking the build. Fix the build by adding dummy versions of enable_cp/disable_cp in this case. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-23Merge tag 'drivers-for-linus' of ↵Linus Torvalds3-59/+135
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM driver updates from Olof Johansson: "Updates of SoC-near drivers and other driver updates that makes more sense to take through our tree. The largest part of this is a conversion of device registration for some renesas shmobile/sh devices over to use resources. This has required coordination with the corresponding arch/sh changes, and we've agreed to merge the arch/sh changes through our tree. Added in this branch is support for Trusted Foundations secure firmware, which is what is used on many of the commercial Nvidia Tegra products that are in the market, including the Nvidia Shield. The code is local to arch/arm at this time since it's uncertain whether it will be shared with arm64 longer-term, if needed we will refactor later. A couple of new RTC drivers used on ARM boards, merged through our tree on request by the RTC maintainer. ... plus a bunch of smaller updates across the board, gpio conversions for davinci, etc" * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits) watchdog: davinci: rename platform driver to davinci-wdt tty: serial: Limit msm_serial_hs driver to platforms that use it mmc: msm_sdcc: Limit driver to platforms that use it usb: phy: msm: Move mach dependent code to platform data clk: versatile: fixup IM-PD1 clock implementation clk: versatile: pass a name to ICST clock provider ARM: integrator: pass parent IRQ to the SIC irqchip: versatile FPGA: support cascaded interrupts from DT gpio: davinci: don't create irq_domain in case of unbanked irqs gpio: davinci: use chained_irq_enter/chained_irq_exit API gpio: davinci: add OF support gpio: davinci: remove unused variable intc_irq_num gpio: davinci: convert to use irqdomain support. gpio: introduce GPIO_DAVINCI kconfig option gpio: davinci: get rid of DAVINCI_N_GPIO gpio: davinci: use {readl|writel}_relaxed() instead of __raw_* serial: sh-sci: Add OF support serial: sh-sci: Add device tree bindings documentation serial: sh-sci: Remove platform data mapbase and irqs fields serial: sh-sci: Remove platform data scbrr_algo_id field ...
2014-01-21Merge tag 'mfd-3.14-1' of git://git.linaro.org/people/ljones/mfdLinus Torvalds3-0/+251
Pull MFD changes from Lee Jones: "New drivers - Samsung Maxim 14577; Micro USB, Regulator, IRQ Controller and Battery Charger - TI/National Semiconductor LP3943 I2C GPIO Expander and PWM Generator Existing driver adaptions - Expansion of Wolfson Arizona DSP and High-Pass filter controls - TI TWL6040 default Regmap support and Regcache addition/bypass - Some nice Smatch catch fixes - Conversion of TI OMAP-USB and TI TWL6030 to endian neutralness - ChromeOS EC timing (delay) adaptions and added dependency on OF - Many constifications of 'struct {mfd_cell,regmap_irq,et.al}' - Watchdog support added for NVIDIA AS3722 - Convert functions to static in TI AM335x - Realigned previously defeated functionality in TI AM335x - IIO ADC-TSC concurrency dead-lock/timeout resolution - Addition of Power Management and Clock support for Samsung core - DEFINE_PCI_DEVICE_TABLE macro removal from MFD Subsystem - Greater use of irqdomain functionality in ST-E AB8500 - Removal of 'include/linux/mfd/abx500/ab8500-gpio.h' - Wolfson WM831x PMIC Power Management changes s/poweroff/shutdown/ - Device Tree documentation added for TI/Nat Semi LP3943 - Version detection and voltage tables for TI TPS6586x PMIC devices - Simplification of Freescale MC13XXX (de-)initialisation routines - Clean-up and simplification of the Realtek parent driver - Added support for RTL8402 Realtek PCI-Express card reader - Resource leak fix for Maxim 77686 - Possible suspend BUG() fix in OMAP USB TLL - Support for new Wolfson WM5110 Revision (D) - Testing of automatic assignment of of_node in mfd_add_device() - Reversion of the above when it started to cause issues - Remove legacy Platform Data from; TI TWL Core, Qualcomm SSBI and ST-E ABx500 Pinctrl - Clean-ups; tabbing issues, function name changes, 'drvdata = NULL' removal, unused uninitialised warning mitigation, error message clarity, removal of redundant/duplicate checks, licensing (GPL -> GPL2), coding consistency, duplicate function declaration, ret checks, commit corrections, redundant of_match_ptr() helper removal, spelling, #if-deffery removal and header guards name changes" * tag 'mfd-3.14-1' of git://git.linaro.org/people/ljones/mfd: (78 commits) mfd: wm5110: Add register patch for rev D chip mfd: omap-usb-tll: Don't hold lock during pm_runtime_get/put_sync() gpio: lp3943: Remove redundant of_match_ptr helper mfd: sta2x11-mfd: Use named constants for pci_power_t values Documentation: mfd: Fix LDO index in s2mps11.txt mfd: Cleanup mfd-mcp-sa11x0.h header mfd: max8997: Use "IS_ENABLED(CONFIG_OF)" for DT code. mfd: twl6030: Fix endianness problem in IRQ handler mfd: sec-core: Add cells for S5M8767-clocks mfd: max14577: Remove redundant of_match_ptr helper mfd: twl6040: Fix sparse non static symbol warning mfd: Revert "mfd: Always assign of_node in mfd_add_device()" mfd: rtsx: Fix sparse non static symbol warning mfd: max77693: Set proper maximum register for MUIC regmap mfd: max77686: Fix regmap resource leak on driver remove mfd: Represent correct filenames in file headers mfd: rtsx: Add support for card reader rtl8402 mfd: rtsx: Add set pull control macro and simplify rtl8411 mfd: max8997: Enforce mfd_add_devices() return value check mfd: mc13xxx: Simplify probe() & remove() ...
2014-01-21Merge tag 'gpio-v3.14-1' of ↵Linus Torvalds67-371/+1607
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO tree bulk changes from Linus Walleij: "A big set this merge window, as we have much going on in this subsystem. The changes to other subsystems (notably a slew of ARM machines as I am doing away with their custom APIs) have all been ACKed to the extent possible. Major changes this time: - Some core improvements and cleanups to the new GPIO descriptor API. This seems to be working now so we can start the exodus to this API, moving gradually away from the global GPIO numberspace. - Incremental improvements to the ACPI GPIO core, and move the few GPIO ACPI clients we have to the GPIO descriptor API right *now* before we go any further. We actually managed to contain this *before* we started to litter the kernel with yet another hackish global numberspace for the ACPI GPIOs, which is a big win. - The RFkill GPIO driver and all platforms using it have been migrated to use the GPIO descriptors rather than fixed number assignments. Tegra machine has been migrated as part of this. - New drivers for MOXA ART, Xtensa GPIO32 and SMSC SCH311x. Those should be really good examples of how I expect a nice GPIO driver to look these days. - Do away with custom GPIO implementations on a major part of the ARM machines: ks8695, lpc32xx, mv78xx0. Make a first step towards the same in the horribly convoluted Samsung S3C include forest. We expect to continue to clean this up as we move forward. - Flag GPIO lines used for IRQ on adnp, bcm-kona, em, intel-mid and lynxpoint. This makes the GPIOlib core aware that a certain GPIO line is used for IRQs and can then enforce some semantics such as disallowing a GPIO line marked as in use for IRQ to be switched to output mode. - Drop all use of irq_set_chip_and_handler_name(). The name provided in these cases were just unhelpful tags like "mux" or "demux". - Extend the MCP23s08 driver to handle interrupts. - Minor incremental improvements for rcar, lynxpoint, em 74x164 and msm drivers. - Some non-urgent bug fixes here and there, duplicate #includes and that usual kind of cleanups" Fix up broken Kconfig file manually to make this all compile. * tag 'gpio-v3.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (71 commits) gpio: mcp23s08: fix casting caused build warning gpio: mcp23s08: depend on OF_GPIO gpio: mcp23s08: Add irq functionality for i2c chips ARM: S5P[v210|c100|64x0]: Fix build error gpio: pxa: clamp gpio get value to [0,1] ARM: s3c24xx: explicit dependency on <plat/gpio-cfg.h> ARM: S3C[24|64]xx: move includes back under <mach/> scope Documentation / ACPI: update to GPIO descriptor API gpio / ACPI: get rid of acpi_gpio.h gpio / ACPI: register to ACPI events automatically mmc: sdhci-acpi: convert to use GPIO descriptor API ARM: s3c24xx: fix build error gpio: f7188x: set can_sleep attribute gpio: samsung: Update documentation gpio: samsung: Remove hardware.h inclusion gpio: xtensa: depend on HAVE_XTENSA_GPIO32 gpio: clps711x: Enable driver compilation with COMPILE_TEST gpio: clps711x: Use of_match_ptr() net: rfkill: gpio: convert to descriptor-based GPIO interface leds: s3c24xx: Fix build failure ...
2014-01-21gpio: lp3943: Remove redundant of_match_ptr helperSachin Kamat1-1/+1
'lp3943_gpio_of_match' is always compiled in. Hence the helper macro is not needed. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-21gpio: add LP3943 I2C GPIO expander driverMilo Kim3-0/+251
This is one of LP3943 MFD driver. LP3943 is configurable as a GPIO expander, up to 16 GPIOs. * Application note: how to configure LP3943 as a GPIO expander http://www.ti.com/lit/an/snva287a/snva287a.pdf * Supported GPIO controller operations request, free, direction_input, direction_output, get and set * GPIO direction register not supported LP3943 doesn't have the GPIO direction register. It only provides input and output status registers. So, private data for the direction should be handled manually. This variable is updated whenever the direction is changed and used in 'get' operation. * Pin assignment A driver data, 'pin_used' is checked when a GPIO is requested. If the GPIO is already assigned, then returns as failure. If the GPIO is available, 'pin_used' is set. When the GPIO is not used anymore, then it is cleared. It is defined as unsigned long type for atomic bit operation APIs, but only LSB 16bits are used because LP3943 has 16 outputs. Signed-off-by: Milo Kim <milo.kim@ti.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-20gpio: mcp23s08: fix casting caused build warningSeongJae Park1-1/+1
Signed-off-by: SeongJae Park <sj38.park@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-20gpio: mcp23s08: depend on OF_GPIOLinus Walleij1-1/+1
The MCP drivers fails to compile on trial builds due to missing Kconfig dependency on OF_GPIO. Fix it. Cc: Lars Poeschel <poeschel@lemonage.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-17gpio: mcp23s08: Add irq functionality for i2c chipsLars Poeschel2-5/+244
This adds interrupt functionality for i2c chips to the driver. They can act as a interrupt-controller and generate interrupts, if the inputs change. This is tested with a mcp23017 chip on an arm based platform. v3: - be a bit more clear that the irq functionality is also available on spi versions of the chips, but the linux driver does not support this yet v2: - some more word about irq-mirror property in binding doc - use of_read_bool instead of of_find_property for "interrupt-contrller" and "irq-mirror" - cache the "interrupt-controller" for remove function - do set the irq-mirror bit only if device is marked as interrupt-controller - do create the irq mapping and setup of irq_desc of all possible interrupts in probe path instead of in gpio_to_irq - mark gpios as in use as interrupts in irq in irq_startup and unlock it in irq_shutdown - rename virq to child_irq - remove dev argument from mcp23s08_irq_setup function - move gpiochip_add before mcp23s08_irq_setup in probe path Signed-off-by: Lars Poeschel <poeschel@lemonage.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-15ARM: S5P[v210|c100|64x0]: Fix build errorSachin Kamat1-0/+3
gpio-samsung.h header file introduced by commit 93177be0910c ("ARM: S3C[24|64]xx: move includes back under <mach/> scope") is required only by S3C[24|64]xx machines. Include them conditionally to avoid the following build errors for other machine configurations. drivers/gpio/gpio-samsung.c:35:31: fatal error: mach/gpio-samsung.h: No such file or directory arch/arm/plat-samsung/pm-gpio.c:22:31: fatal error: mach/gpio-samsung.h: No such file or directory Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-15gpio: pxa: clamp gpio get value to [0,1]Neil Zhang1-1/+2
It would be convenient to normalize the return value for gpio_get. I have checked mach-mmp / mach-pxa / plat-pxa / plat-orion / mach-orion5x. It's OK for all of them to change this function to return 0 and 1. Signed-off-by: Neil Zhang <zhangwm@marvell.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-14ARM: S3C[24|64]xx: move includes back under <mach/> scopeLinus Walleij1-6/+1
When refactoring and breaking out the includes for the machine-specific GPIO configuration, two files were created in <linux/platform_data/gpio-samsung-s3c[24|64]xx.h>, but as that namespace shall be used for defining data exchanged between machines and drivers, using it for these broad macros and config settings is wrong. Move the headers back into the machine-local <mach/gpio-samsung.h> file and think about the next step. Reported-by: Arnd Bergmann <arnd@arndb.de> Cc: Tomasz Figa <tomasz.figa@gmail.com> Cc: Sylwester Nawrocki <sylvester.nawrocki@gmail.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: linux-samsung-soc@vger.kernel.org Acked-by: Mark Brown <broonie@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-08gpio / ACPI: get rid of acpi_gpio.hMika Westerberg3-3/+26
Now that all users of acpi_gpio.h have been moved to use either the GPIO descriptor interface or to the internal gpiolib.h we can get rid of acpi_gpio.h entirely. Once this is done the only interface to get GPIOs to drivers enumerated from ACPI namespace is the descriptor based interface. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-08gpio / ACPI: register to ACPI events automaticallyMika Westerberg3-4/+39
Instead of asking each driver to register to ACPI events we can just call acpi_gpiochip_register_interrupts() for each chip that has an ACPI handle. The function checks chip->to_irq and if it is set to NULL (a GPIO driver that doesn't do interrupts) the function does nothing. We also add the a new header drivers/gpio/gpiolib.h that is used for functions internal to gpiolib and add ACPI GPIO chip registering functions to that header. Once that is done we can remove call to acpi_gpiochip_register_interrupts() from its only user, pinctrl-baytrail.c Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-07gpio: f7188x: set can_sleep attributeSimon Guinot1-0/+1
Since request_muxed_region() is used to synchronize access on the Super-I/O controller, then the can_sleep attribute must be set for the f7188x GPIO chips. Signed-off-by: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-07gpio: samsung: Remove hardware.h inclusionSachin Kamat1-1/+0
The contents of this header file are not referenced in the driver. Remove its inclusion. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-01-07gpio: xtensa: depend on HAVE_XTENSA_GPIO32Baruch Siach1-0/+1
Prevent build failure when the selected variant does not support GPIO32. Acked-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-27 21:54:15 +0000