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* gpio: dwapb: convert device node to fwnodeJiang Qiu2016-04-293-21/+19
| | | | | | | | | | This patch converts device node to fwnode for dwapb driver, so as to provide a unified fwnode for DT and ACPI bindings. Tested-by: Alan Tull <delicious.quinoa@gmail.com> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jiang Qiu <qiujiang@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: dwapb: remove name from dwapb_port_propertyJiang Qiu2016-04-293-15/+11
| | | | | | | | | | This patch removed the name property from dwapb_port_property. The name property is redundant, since we can get this info from dwapb_gpio dev node. Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jiang Qiu <qiujiang@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio/qoriq: select IRQ_DOMAINArnd Bergmann2016-04-291-0/+1
| | | | | | | | | | | | | | | | The gpio-mpc8xxx driver requires IRQ domains but can be built without them, resulting on a failure to build certain randconfigs on ARM: drivers/gpio/gpio-mpc8xxx.c: In function 'mpc8xxx_gpio_to_irq': drivers/gpio/gpio-mpc8xxx.c:92:10: error: implicit declaration of function 'irq_create_mapping' [-Werror=implicit-function-declaration] return irq_create_mapping(mpc8xxx_gc->irq, offset); This selects IRQ_DOMAIN from the driver to ensure we can build it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 5df7fd46b70b ("gpio/qoriq: Add qoriq platforms support") Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Add support for gpio debounceLaxman Dewangan2016-04-291-1/+68
| | | | | | | | | | | | | NVIDIA's Tegra210 support the HW debounce in the GPIO controller for all its GPIO pins. Add support for setting debounce timing by implementing the set_debounce callback of gpiochip. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Get rid of all file scoped global variablesLaxman Dewangan2016-04-291-152/+198
| | | | | | | | | | | Move the file scoped multiple global variable from Tegra GPIO driver to the structure and make this as gpiochip data which can be referred from GPIO chip callbacks. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Make of_device_id compatible data to constantLaxman Dewangan2016-04-291-2/+2
| | | | | | | | | | | The data member of the of_device_id is the constant type and hence all static structure which is used for this initialisation as static. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Suggested-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Don't open code of_device_get_match_data()Laxman Dewangan2016-04-291-26/+24
| | | | | | | | | | | Use of_device_get_match_data() for getting matched data instead of implementing this locally. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: pl061: implement .get_direction()Linus Walleij2016-04-281-0/+8
| | | | | | | Implement this callback so that the driver reports correctly the direction setting of each line. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: pl061: remove range checkLinus Walleij2016-04-281-6/+0
| | | | | | | The gpiochip calls are already checking that the GPIO line offsets are in range. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: clarify open drain/source docsLinus Walleij2016-04-271-6/+14
| | | | | | | Make the text clearer, remove reference to confusing "positive" and "negative" and elaborate a bit. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: omap: fix irq triggering in smart-idle wakeup modeGrygorii Strashko2016-04-261-40/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now GPIO IRQ loss is observed on dra7-evm after suspend/resume cycle in the following case: extcon_usb1(id_irq) -> pcf8575.gpio1 -> omapgpio6.gpio11 -> gic the extcon_usb1 is wake up source and it enables IRQ wake up for id_irq by calling enable/disable_irq_wake() during suspend/resume which, in turn, causes execution of omap_gpio_wake_enable(). And omap_gpio_wake_enable() will set/clear corresponding bit in GPIO_IRQWAKEN_x register. omapgpio6 configuration after boot - wakeup is enabled for GPIO IRQs by default from omap_gpio_irq_type: GPIO_IRQSTATUS_SET_0 | 0x00000400 GPIO_IRQSTATUS_CLR_0 | 0x00000400 GPIO_IRQWAKEN_0 | 0x00000400 GPIO_RISINGDETECT | 0x00000000 GPIO_FALLINGDETECT | 0x00000400 omapgpio6 configuration after after suspend/resume cycle: GPIO_IRQSTATUS_SET_0 | 0x00000400 GPIO_IRQSTATUS_CLR_0 | 0x00000400 GPIO_IRQWAKEN_0 | 0x00000000 <--- GPIO_RISINGDETECT | 0x00000000 GPIO_FALLINGDETECT | 0x00000400 As result, system will start to lose interrupts from pcf8575 GPIO expander, because when OMAP GPIO IP is in smart-idle wakeup mode, there is no guarantee that transition(s) on input non wake up GPIO pin will trigger asynchronous wake-up request to PRCM and then IRQ generation. IRQ will be generated when GPIO is in active mode - for example, some time after accessing GPIO bank registers IRQs will be generated normally, but issue will happen again once PRCM will put GPIO in low power smart-idle wakeup mode. Note 1. Issue is not reproduced if debounce clk is enabled for GPIO bank. Note 2. Issue hardly reproducible if GPIO pins group contains both wakeup/non-wakeup gpios - for example, it will be hard to reproduce issue with pin2 if GPIO_IRQWAKEN_0=0x1 GPIO_IRQSTATUS_SET_0=0x3 GPIO_FALLINGDETECT = 0x3 (TRM "Power Saving by Grouping the Edge/Level Detection"). Note 3. There nothing common bitween System wake up and OMAP GPIO bank IP wake up logic - the last one defines how the GPIO bank ON-IDLE-ON transition will happen inside SoC under control of PRCM. Hence, fix the problem by removing omap_set_gpio_wakeup() function completely and so keeping always in sync GPIO IRQ mask/unmask (IRQSTATUS_SET) and wake up enable (GPIO_IRQWAKEN) bits; and adding IRQCHIP_MASK_ON_SUSPEND flag in OMAP GPIO irqchip. That way non wakeup GPIO IRQs will be properly masked/unmask by IRQ PM core during suspend/resume cycle. Cc: Roger Quadros <rogerq@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* ASoC: ac97: use gpiochip data pointerLinus Walleij2016-04-261-5/+3
| | | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: alsa-devel@alsa-project.org Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* ASoC: wm8996: use gpiochip data pointerLinus Walleij2016-04-261-10/+6
| | | | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: alsa-devel@alsa-project.org Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* ASoC: wm8962: use gpiochip data pointerLinus Walleij2016-04-261-10/+5
| | | | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: alsa-devel@alsa-project.org Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* ASoC: wm8903: use gpiochip data pointerLinus Walleij2016-04-261-11/+6
| | | | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: alsa-devel@alsa-project.org Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* ASoC: wm5100: use gpiochip data pointerLinus Walleij2016-04-261-10/+6
| | | | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: alsa-devel@alsa-project.org Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* ASoC: rt5677: use gpiochip data pointerLinus Walleij2016-04-261-11/+6
| | | | | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Bard Liao <bardliao@realtek.com> Cc: Oder Chiou <oder_chiou@realtek.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: alsa-devel@alsa-project.org Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* serial: sc16is7xx: use gpiochip data pointerLinus Walleij2016-04-261-10/+6
| | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Jiri Slaby <jslaby@suse.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* serial: max310x: use gpiochip data pointerLinus Walleij2016-04-261-6/+6
| | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Jiri Slaby <jslaby@suse.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* staging: vme: use gpiochip data pointerLinus Walleij2016-04-261-11/+6
| | | | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Manohar Vanga <manohar.vanga@gmail.com> Cc: devel@driverdev.osuosl.org Acked-by: Martyn Welch <martyn@welchs.me.uk> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* ssb: gpio_driver: use gpiochip data pointerLinus Walleij2016-04-261-19/+14
| | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Michael Buesch <m@bues.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* platform: x86: intel-pmic: use gpiochip data pointerLinus Walleij2016-04-261-3/+3
| | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Feng Tang <feng.tang@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* input: adp5588-keys: use gpiochip data pointerLinus Walleij2016-04-261-5/+5
| | | | | | | | | | | This makes the driver use the data pointer added to the gpio_chip to store a pointer to the state container instead of relying on container_of(). Cc: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* arc: select GPIOLIB directlyLinus Walleij2016-04-262-2/+2
| | | | | | | | | | Instead of indirectly selecting GPIOLIB via the ARCH_REQUIRE_GPIOLIB symbol, just select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: linux-snps-arc@lists.infradead.org Acked-by: Vineet Gupta <vgupt@synopsys.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* sparc: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij2016-04-261-1/+0
| | | | | | | | | | This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: sparclinux@vger.kernel.org Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* cris: do away with ARCH_REQUIRE_GPIOLIBLinus Walleij2016-04-261-1/+1
| | | | | | | | | | | Replace "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. Cc: Michael Büsch <m@bues.ch> Cc: Mikael Starvik <starvik@axis.com> Cc: linux-cris-kernel@axis.com Acked-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* nios2: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij2016-04-261-1/+0
| | | | | | | | | | This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: nios2-dev@lists.rocketboards.org Acked-by: Ley Foon Tan <lftan@altera.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* m68k: do away with ARCH_REQUIRE_GPIOLIBLinus Walleij2016-04-261-1/+1
| | | | | | | | | | | Replace "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. Cc: Michael Büsch <m@bues.ch> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org Acked-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* xtensa: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij2016-04-261-1/+0
| | | | | | | | | | | This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: Chris Zankel <chris@zankel.net> Cc: linux-xtensa@linux-xtensa.org Acked-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* alpha: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij2016-04-261-1/+0
| | | | | | | | | | | | This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: linux-alpha@vger.kernel.org Acked-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* metag: remove ARCH_WANT_OPTIONAL_GPIOLIBLinus Walleij2016-04-261-1/+0
| | | | | | | | | | This symbols is not needed to get access to selecting the GPIOLIB anymore: any arch can select GPIOLIB. Cc: Michael Büsch <m@bues.ch> Cc: linux-metag@vger.kernel.org Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* avr32: do away with ARCH_REQUIRE_GPIOLIBLinus Walleij2016-04-261-1/+1
| | | | | | | | | | Replace "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. Cc: Michael Büsch <m@bues.ch> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Acked-by: Acked-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: remove deps on ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIBLinus Walleij2016-04-261-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The GPIOLIB symbol currently require that ARCH_WANT_OPTIONAL_GPIOLIB or ARCH_REQUIRE_GPIOLIB is selected to be selectable. The ARCH_REQUIRE_GPIOLIB does only one thing: select GPIOLIB. This is just confusing: architectures that want GPIOLIB should be able to configure it in no matter what, and those who require it should just select GPIOLIB. It also creates problems for drivers that need to state "select GPIOLIB" to get dependencies: those depend on the selected architecture to select ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB first, and will cause compile errors for the few archs that state neither. These intermediary symbols need to go. As a first step, remove the dependencies so that: - ARCH_WANT_OPTIONAL_GPIOLIB becomes a noop (GPIOLIB will be available for everyone) and - "select ARCH_REQUIRE_GPIOLIB" can be replaced by just "select GPIOLIB" After this patch we can follow up with patches cleaning up the architectures one-by one and eventually remove the ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB symbols altogether. Reported-by: Michael Hennerich <michael.hennerich@analog.com> Cc: Michael Büsch <m@bues.ch> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: revert bank bindingsLinus Walleij2016-04-261-7/+0
| | | | | | | | Keep the words talking about what a GPIO bank is, but remove the binding. We have not agreed that this is something we want to have. Acked-by: Rob Herring <robh+dt@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: move gpiod_set_array_value_priv()Linus Walleij2016-04-262-12/+16
| | | | | | | | This renames gpiod_set_array_value_priv() to gpiod_set_array_value_complex() and moves it to the gpiolib.h private header file so we can reuse it in the subsystem. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: f7188x: fix edit mistakeLinus Walleij2016-04-181-1/+1
| | | | | | | | Fix a typo causing a build regression. Fixes: f90c6bdb690b ("gpio: f7188x: use the new open drain callback") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio/reset: move gpio-{poweroff|restart} DT doc to proper placeWolfram Sang2016-04-152-0/+0
| | | | | | | | | I did only find them after a fuzzy search, so let them be where one would expect them. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: brcmstb: Return proper error if bank width is invalidAxel Lin2016-04-151-0/+1
| | | | | | | | Return proper error in brcmstb_gpio_probe if bank width is invalid. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Gregory Fong <gregory.0xf0@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: gpiolib: Print error number if gpio hog failedLaxman Dewangan2016-04-141-5/+6
| | | | | | | | Print the error number of GPIO hog failed during its configurations. This helps in identifying the failure without instrumenting the code. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: of: Scan available child node for gpio-hogLaxman Dewangan2016-04-141-1/+1
| | | | | | | | | | | | | | Look for child node which are available when iterating for gpio hog node for request/set GPIO initial configuration during OF gpio chip registration. All it really does is make it possible to set status = "disabled"; in the hog nodes, and then they will not be applied. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: tegra: Allow compile testAlexander Stein2016-04-142-1/+6
| | | | | | | Allow compile testing this driver by adding a new config option which is enabled by default and depends on the old symbol or COMPILE_TEST. Signed-off-by: Alexander Stein <alexanders83@web.de>
* gpio: gpiolib-of: Allow compile testingAlexander Stein2016-04-141-1/+1
| | | | | | Lower dependencies for compile testing. Signed-off-by: Alexander Stein <alexanders83@web.de>
* gpio: wm8994: use the new open drain callbackLinus Walleij2016-04-141-1/+24
| | | | | | | | | | | | | | | | | | | | | The WM8994 GPIOs clearly have a dedicated open drain control register. Implement support for controlling this from GPIO descriptor tables or other hardware descriptions such as device tree by implementing the .set_single_ended() callback. Before this patch, lines requesting open drain will just be switched to input mode by the framework, thus emulating open drain. But the hardware can do the real thing, so let's support that. As part of this, rename the debugfs string for output mode from "CMOS" to "push-pull" because it is the term used in the framework to signify a tomem-pole CMOS output. Cc: patches@opensource.wolfsonmicro.com Cc: Mark Brown <broonie@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: wm831x: use the new open drain callbackLinus Walleij2016-04-141-1/+24
| | | | | | | | | | | | | | | | | | | | | The WM831x GPIOs clearly have a dedicated open drain control register. Implement support for controlling this from GPIO descriptor tables or other hardware descriptions such as device tree by implementing the .set_single_ended() callback. Before this patch, lines requesting open drain will just be switched to input mode by the framework, thus emulating open drain. But the hardware can do the real thing, so let's support that. As part of this, rename the debugfs string for output mode from "CMOS" to "push-pull" because it is the term used in the framework to signify a tomem-pole CMOS output. Cc: patches@opensource.wolfsonmicro.com Cc: Mark Brown <broonie@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: vx855: use the new open drain callbackLinus Walleij2016-04-141-0/+23
| | | | | | | | | | | | | | The vx855 driver clearly states it has three groups of lines: GPI, GPO and GPIO. The GPO are assumedly push-pull. The GPIO are implicit open drain, but if the GPIO subsystem ask for them to be explicitly open drain (i.e. set the flag on a machine table that we want open drain) it will currently misbehave: it will switch the GPIOs to input mode (emulate open drain). Instead: indicate in the .set_single_ended() callback that we support open drain and open drain only. Cc: Daniel Drake <drake@endlessm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: menz127: use the new open drain callbackLinus Walleij2016-04-141-7/+11
| | | | | | | | | | | | | | The menz127 driver tries to support open drain by detecting it at request time. However: without the new callbacks from the gpiolib it is not really working: the core will still just emulate the open drain mode by switching the line to an input. By adding a hook into the new .set_single_ended() call rather than trying to autodetect at request() time, proper open drain can be supported. Cc: Andreas Werner <andy@wernerandy.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: f7188x: use the new open drain callbackLinus Walleij2016-04-141-0/+33
| | | | | | | | | | The F7188x chips supports setting the pins in open drain mode. Activate the new .set_single_ended() callback. Cc: Peter Hung <hpeter@gmail.com> Cc: Andreas Bofjall <andreas@gazonk.org> Cc: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: f7188x: use BIT() macroLinus Walleij2016-04-141-9/+10
| | | | | | | | | | Align to how we handle bitmasks in most drivers in the subsystem: using the BIT(n) macro over (1 << n). Cc: Peter Hung <hpeter@gmail.com> Cc: Andreas Bofjall <andreas@gazonk.org> Cc: Simon Guinot <simon.guinot@sequanux.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: sx150x: use the new open drain callbackLinus Walleij2016-04-141-14/+27
| | | | | | | | | | | | | | | | | One variant of the SX150X GPIO chip supports setting the pins in open drain mode. This is currently available to set from platform data, but completely unused in the kernel. Activate the new .set_single_ended() callback so users can set this up from e.g. device tree or board files using the new GPIO descriptors. As part of this, delete the platform data open drain setting method. Cc: Wei Chen <Wei.Chen@csr.com> Cc: Peter Rosin <peda@axentia.se> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: sx150x: move platform data into driverLinus Walleij2016-04-142-83/+59
| | | | | | | | | | | The sx150x has some platform data definition in <linux/i2c/sx150x.h> but this file is only included from the driver in the whole kernel so move its contents into the driver. Cc: Wei Chen <Wei.Chen@csr.com> Cc: Peter Rosin <peda@axentia.se> Acked-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-23 04:13:52 +0100