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path: root/drivers/gpio/gpio-tz1090-pdc.c (follow)
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2016-01-05gpio: tz1090-pdc: use gpiochip data pointerLinus Walleij1-7/+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: James Hogan <james.hogan@imgtec.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-26gpio: tz1090-pdc: Be sure to clamp return valueLinus Walleij1-1/+1
As we want gpio_chip .get() calls to be able to return negative error codes and propagate to drivers, we need to go over all drivers and make sure their return values are clamped to [0,1]. We do this by using the ret = !!(val) design pattern. Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-12-11gpio: Restore indentation of parent device setupGeert Uytterhoeven1-1/+1
Fixes: 58383c78425e4ee1 ("gpio: change member .dev to .parent") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-11-19gpio: change member .dev to .parentLinus Walleij1-1/+1
The name .dev in a struct is normally reserved for a struct device that is let us say a superclass to the thing described by the struct. struct gpio_chip stands out by confusingly using a struct device *dev to point to the parent device (such as a platform_device) that represents the hardware. As we want to give gpio_chip:s real devices, this is not working. We need to rename this member to parent. This was done by two coccinelle scripts, I guess it is possible to combine them into one, but I don't know such stuff. They look like this: @@ struct gpio_chip *var; @@ -var->dev +var->parent and: @@ struct gpio_chip var; @@ -var.dev +var.parent and: @@ struct bgpio_chip *var; @@ -var->gc.dev +var->gc.parent Plus a few instances of bgpio that I couldn't figure out how to teach Coccinelle to rewrite. This patch hits all over the place, but I *strongly* prefer this solution to any piecemal approaches that just exercise patch mechanics all over the place. It mainly hits drivers/gpio and drivers/pinctrl which is my own backyard anyway. Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Rafał Miłecki <zajec5@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Cc: Alek Du <alek.du@intel.com> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Lee Jones <lee.jones@linaro.org> Acked-by: Jiri Kosina <jkosina@suse.cz> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-10-16gpio: replace trivial implementations of request/free with generic oneJonas Gorski1-12/+2
Replace all trivial request/free callbacks that do nothing but call into pinctrl code with the generic versions. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: James Hogan <james.hogan@imgtec.com> Acked-by: Stefan Agner <stefan@agner.ch> Acked-by: Joachim Eastwood <manabian@gmail.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-01-29gpio: tz1090-pdc: Use resource_size to fix off-by-one resource size calculationAxel Lin1-1/+1
Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-10-20gpio: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2013-07-20gpio-tz1090-pdc: add TZ1090 PDC gpio driverJames Hogan1-0/+243
Add a GPIO driver for the low-power Powerdown Controller GPIOs in the TZ1090 SoC. The driver is instantiated by device tree and supports interrupts for the SysWake GPIOs only. Changes in v4: - fix typos in DT bindings compatible properties - reference Documentation/devicetree/bindings/gpio/gpio.txt in gpio-ranges description in DT bindings - fix gpio-ranges examples in DT bindings (it must now have 3 cells) Changes in v3: - separated from irq-imgpdc and removed arch/metag changes to allow these patches to go upstream separately via the pinctrl[/gpio] trees (particularly the pinctrl drivers depend on the new pinconf DT bindings). - some s/unsigned/unsigned int/. - gpio-tz1090*: refer to <dt-bindings/gpio/gpio.h> and <dt-bindings/interrupt-controller/irq.h> flags in bindings. - gpio-tz1090*: move initcall from postcore to subsys. Changes in v2: - gpio-tz1090-pdc: remove references to Linux flags in dt bindings - gpio-tz1090-pdc: make use of BIT() from linux/bitops.h - gpio-tz1090-pdc: make register accessors inline to match pinctrl - gpio-tz1090-pdc: update gpio-ranges to use 3 cells after recent ABI breakage Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: linux-doc@vger.kernel.org Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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