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2014-05-09gpio: palmas: Make of_device_id array constJingoo Han
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: mvebu: Make of_device_id array constJingoo Han
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: mcp23s08: Make of_device_id array constJingoo Han
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: grgpio: Make of_device_id array constJingoo Han
Make of_device_id array const, because all OF functions handle it as const. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Andreas Larsson <andreas@gaisler.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: zevio: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: tps65910: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: tps6586x: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: tegra: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: SPEAr: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: rdc321x: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: rcar: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: rc5t583: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: palmas: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: mvebu: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Acked-by: Jason Cooper <jason@lakedaemon.net> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: moxart: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: lynxpoint: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: janz-ttl: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: em: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: davinci: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: adp5588: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: adp5520: remove unnecessary OOM messagesJingoo Han
The site-specific OOM messages are unnecessary, because they duplicate the MM subsystem generic OOM message. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-09gpio: always enable GPIO_OMAP on ARCH_OMAPArnd Bergmann
Commit 4df42de9d3e "gpio: omap: add a GPIO_OMAP option instead of using ARCH_OMAP" made it possible to build OMAP kernels without the GPIO driver, which at least on OMAP2 and OMAP3 causes build errors because of functions used by the platform power management code: arch/arm/mach-omap2/built-in.o: In function `omap_sram_idle': arch/arm/mach-omap2/pm24xx.c:129: undefined reference to `omap2_gpio_prepare_for_idle' arch/arm/mach-omap2/pm24xx.c:129: undefined reference to `omap2_gpio_resume_after_idle' We presumably always want the GPIO driver on OMAP, so this adds a slightly broader dependency and only allows disabling the driver only when no OMAP2PLUS platform is selected. However, it seems entirely reasonable to include the driver in build tests on other platforms, so we should also allow building it for COMPILE_TEST builds and select the required GENERIC_IRQ_CHIP that may not already be enabled on other platforms. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-03gpio: pl061: use BIT() macro instead of shifting bitsJavier Martinez Canillas
Using the BIT() macro instead of shifting bits makes the code less error prone and also more readable. Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-03gpio: omap: use BIT() macro instead of shifting bitsJavier Martinez Canillas
Using the BIT() macro instead of shifting bits makes the code less error prone and also more readable. Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-03gpio: kempld: use BIT() macro instead of shifting bitsJavier Martinez Canillas
Using the BIT() macro instead of shifting bits makes the code less error prone and also more readable. Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-03gpio: em: use BIT() macro instead of shifting bitsJavier Martinez Canillas
Using the BIT() macro instead of shifting bits makes the code less error prone and also more readable. Signed-off-by: Javier Martinez Canillas <javier@dowhile0.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-02gpio: Add missing device-managed documentationThierry Reding
Add the GPIO-related device-managed functions to the list of functions in Documentation/driver-model/devres.txt. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-02gpio: Fix gpio_get -> gpiod_get typo in kernel-docThierry Reding
The function is called gpiod_get(), not gpio_get(). Fix the kernel-doc comment to match the name. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: of: Allow -gpio suffix for property namesThierry Reding
Many bindings use the -gpio suffix in property names. Support this in addition to the -gpios suffix when requesting GPIOs using the new descriptor-based API. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: omap: implement get_directionYegor Yefremov
This patch implements gpio_chip's get_direction() routine, that lets other drivers get particular GPIOs direction using struct gpio_desc. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Acked-by: Javier Martinez Canillas <javier@dowhile0.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Reviewed-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: of: Remove unneeded dummy functionThierry Reding
of_find_gpio() is always called under an IS_ENABLED(CONFIG_OF), so the dummy implementation provided for !OF configurations is not needed. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: do not set up hardware for IRQ_TYPE_NONELinus Walleij
Some GPIO irqchip drivers exploit the irqdomain mapping function to set up the IRQ default type in the hardware, make sure that if we pass IRQ_TYPE_NONE, no hardware setup whatsoever takes place (this should be the norm) until later when the IRQ gets utilized. Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: linux-omap <linux-omap@vger.kernel.org> Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Javier Martinez Canillas <javier@dowhile0.org> Tested-by: Nishanth Menon <nm@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: rdc321x: Convert to use devm_kzallocAxel Lin
This saves a few unwind code. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: rcar: Add minimal runtime PM supportGeert Uytterhoeven
This is just enough to automatically enable the functional clock, if present. Clock management during suspend/resume is still to be added. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: linux-gpio@vger.kernel.org Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: kempld: Fix autoloading of moduleAxel Lin
Make the module alias match the platform device name, so gpio-kempld module should now autoload correctly. Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: rcar: Add optional functional clock to bindingsGeert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: linux-gpio@vger.kernel.org Cc: devicetree@vger.kernel.org Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: sch311x: Slightly refactor sch311x_detect for better readabilityAxel Lin
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: pl061/sx150x: Remove unneeded include of linux/workqueue.hAxel Lin
Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: max730x: Remove kfree(ts) in __max730x_remove()Axel Lin
The memory for ts is allocated by devm_kzalloc now, so the kfree is not required. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Juergen Beisert <jbe@pengutronix.de> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: ge: Convert to platform driverAlexander Shiyan
This patch converts GE I/O FPGA GPIO driver to platform driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpiolib: of: remove gpio_to_desc() usageLinus Walleij
As demonstrated by commit 390d82e312c56b75407a3606cbcde8c4bc7f10ae "gpiolib: ACPI: remove gpio_to_desc() usage" gpio_to_desc() must die. Replace one of its usage by the newly-introduced gpiochip_get_desc() function. Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: zevio: Get correct gpio output valueAxel Lin
Read gpio output value from ZEVIO_GPIO_OUTPUT. The spin_lock is required to ensure the direction is not changed before reading input/ouput value. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: put GPIO IRQs into their own lock classLinus Walleij
Another feature that is duplicated in a number of GPIO irqchips is that these cascades IRQs are assigned their own lock class so as to avoid warnings about lockdep recursions. Do this also in the generic GPIO irqchip helpers for smooth transition to this core infrastructure. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio-sch: set output level after configuration of directionDaniel Krueger
According to the datasheet, writing to the level register has no effect when GPIO is programmed as input. Actually the the level register is read-only when configured as input. Thus presetting the output level before switching to output is _NOT_ possible. Any writes are lost! Hence we set the level after configuring the GPIO as output. But we cannot prevent a short low pulse if direction is set to high and an external pull-up is connected. Signed-off-by: Daniel Krueger <daniel.krueger@systec-electronic.com> Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: zevio: Remove of_match_ptr around zevio_gpio_of_matchAxel Lin
This is a DT-only driver and it will be built only when CONFIG_OF is set. So it's pointless to use of_match_ptr. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: dwapb: drop irq_setup_generic_chip()Sebastian Andrzej Siewior
The driver calls irq_alloc_domain_generic_chips() which creates a gc and adds it to gc_list. The driver later then calls irq_setup_generic_chip() which also initializes the gc and adds it to the gc_list() and this corrupts the list. Enable LIST_DEBUG and you see the kernel complain. This isn't required, irq_alloc_domain_generic_chips() did the init. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Tested-by: Alan Tull <delicious.quinoa@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28MAINTAINERS: update GPIO OMAP driver entryJavier Martinez Canillas
I've been maintaining this driver by fixing all issues found while migrating OMAP2+ towards Device Tree based booting and keeping it up-to-date by using the latest infraestructure that is provided by the GPIO subsystem. It would be nice if people know that I care about this driver and put me in copy when sending patches for it. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: omap: convert driver to use gpiolib irqchipJavier Martinez Canillas
Converts the GPIO OMAP driver to register its chained irq handler and irqchip using the helpers in the gpiolib core. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: omap: add a GPIO_OMAP option instead of using ARCH_OMAPJavier Martinez Canillas
The ARCH_OMAP config option was used to built the GPIO OMAP driver but this is not consistent with the rest of the GPIO drivers that have their own Kconfig option. Also, this make it harder to add dependencies or reverse dependencies (i.e: select) since that would mean touching the sub-arch config option. So is better to add a boolean Kconfig option for this driver that defaults to true if ARCH_OMAP is enabled. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-04-28gpio: omap: check gpiochip_add() return valueJavier Martinez Canillas
The gpiochip_add() function can fail if the chip cannot be registered so the return value has to be checked and the error propagated in case it happens. Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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