- 29 Apr, 2016 10 commits
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Christian Lamparter authored
This patch renames the gpio-generic.c into gpio-mmio.c. This is because currently the file only contains code for a memory-mapped GPIO driver. There isn't any support for ioports or other resource type. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Christian Lamparter authored
GPIO_GENERIC_PLATFORM is a tristate. If the module option is selected the resulting gpio-generic.ko will lack most of the module initialzation and probe code. Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Jiang Qiu authored
This patch adds gpio-signaled acpi event support. It is used for power button on hisilicon D02 board, an arm64 platform. The corresponding DSDT file is defined as follows: Device(GPI0) { Name(_HID, "HISI0181") Name(_ADR, 0) Name(_UID, 0) Name (_CRS, ResourceTemplate () { Memory32Fixed (ReadWrite, 0x802e0000, 0x10000) Interrupt (ResourceConsumer, Level, ActiveHigh, Exclusive,,,) {344} }) Device(PRTa) { Name (_DSD, Package () { Package () { Package () {"reg",0}, Package () {"snps,nr-gpios",32}, } }) } Name (_AEI, ResourceTemplate () { GpioInt(Edge, ActiveLow, ExclusiveAndWake, PullUp, , " \\_SB.GPI0") {8} }) Method (_E08, 0x0, NotSerialized) { Notify (\_SB.PWRB, 0x80) } } Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> 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>
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Jiang Qiu authored
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>
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Jiang Qiu authored
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>
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Arnd Bergmann authored
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: 5df7fd46 ("gpio/qoriq: Add qoriq platforms support") Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Laxman Dewangan authored
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>
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Laxman Dewangan authored
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>
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Laxman Dewangan authored
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>
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Laxman Dewangan authored
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>
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- 28 Apr, 2016 2 commits
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Linus Walleij authored
Implement this callback so that the driver reports correctly the direction setting of each line. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Linus Walleij authored
The gpiochip calls are already checking that the GPIO line offsets are in range. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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- 27 Apr, 2016 1 commit
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Linus Walleij authored
Make the text clearer, remove reference to confusing "positive" and "negative" and elaborate a bit. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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- 26 Apr, 2016 25 commits
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Grygorii Strashko authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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Linus Walleij authored
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>
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- 18 Apr, 2016 1 commit
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Linus Walleij authored
Fix a typo causing a build regression. Fixes: f90c6bdb ("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>
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- 15 Apr, 2016 1 commit
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Wolfram Sang authored
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>
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