kernel/linux.git/include/linux/gpio/consumer.h, branch v4.3.6

gpio: make flags mandatory for gpiod_get functions

2015-07-06T08:39:24+00:00

Now that all[1] users of the gpiod_get functions are converted to make use of the up to now optional flags parameter, make it mandatory which allows to remove some cpp magic. [1] all but etraxfs-uart which is broken anyhow and I'm allowed to ignore it by Jesper Nilsson :-) Acked-by: Alexandre Courbot Signed-off-by: Uwe Kleine-König

Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds

2015-07-02T02:09:11+00:00

Pull LED subsystem updates from Bryan Wu: "In this cycle, we finished to merge patches for LED Flash class driver. Other than that we have some bug fixes and new drivers for LED controllers" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds: (33 commits) leds:lp55xx: fix firmware loading error leds: fix max77693-led build errors leds: fix aat1290 build errors leds: aat1290: pass flags parameter to devm_gpiod_get leds: ktd2692: pass flags parameter to devm_gpiod_get drivers/leds: don't use module_init in non-modular leds-cobalt-raq.c leds: aat1290: add support for V4L2 Flash sub-device DT: aat1290: Document handling external strobe sources leds: max77693: add support for V4L2 Flash sub-device media: Add registration helpers for V4L2 flash sub-devices v4l: async: Add a pointer to of_node to struct v4l2_subdev, match it Documentation: leds: Add description of v4l2-flash sub-device leds: add BCM6358 LED driver leds: add DT binding for BCM6358 LED controller leds: fix brightness changing when software blinking is active Documentation: leds-lp5523: describe master fader attributes leds: lp5523: add master_fader support leds: leds-gpio: Allow compile test if !GPIOLIB leds: leds-gpio: Add missing #include gpiolib: Add missing dummies for the unified device properties interface ...

gpiolib: rename gpiod_set_array to gpiod_set_array_value

2015-06-01T13:10:09+00:00

There have been concerns that the function names gpiod_set_array() and gpiod_get_array() might be confusing to users. One might expect gpiod_get_array() to return array values, while it is actually the array counterpart of gpiod_get(). To be consistent with the single descriptor API we could rename gpiod_set_array() to gpiod_set_array_value(). This makes some function names a bit lengthy: gpiod_set_raw_array_value_cansleep(). Signed-off-by: Rojhalat Ibrahim Acked-by: Alexandre Courbot Signed-off-by: Linus Walleij

gpiolib: Add missing dummies for the unified device properties interface

2015-05-25T20:26:45+00:00

If GPIOLIB=n: drivers/leds/leds-gpio.c: In function ‘gpio_leds_create’: drivers/leds/leds-gpio.c:187: error: implicit declaration of function ‘devm_get_gpiod_from_child’ drivers/leds/leds-gpio.c:187: warning: assignment makes pointer from integer without a cast Add dummies for fwnode_get_named_gpiod() and devm_get_gpiod_from_child() for the !GPIOLIB case to fix this. Signed-off-by: Geert Uytterhoeven Fixes: 40b7318319281b1b ("gpio: Support for unified device properties interface") Acked-by: Alexandre Courbot Acked-by: Linus Walleij Signed-off-by: Bryan Wu

gpio: remove gpiod_sysfs_set_active_low

2015-05-12T08:46:53+00:00

Remove gpiod_sysfs_set_active_low (and gpio_sysfs_set_active_low) which allowed code to change the polarity of a gpio line even after it had been exported through sysfs. Drivers should not care, and generally does not know, about gpio-line polarity which is a hardware feature that needs to be described by firmware. It is currently possible to define gpio-line polarity in device-tree and acpi firmware or using platform data. Userspace can also change the polarity through sysfs. Note that drivers using the legacy gpio interface could still use GPIOF_ACTIVE_LOW to change the polarity before exporting the gpio. There are no in-kernel users of this interface. Cc: Jonathan Corbet Cc: Harry Wei Cc: Arnd Bergmann Cc: linux-doc@vger.kernel.org Cc: linux-kernel@zh-kernel.org Cc: linux-arch@vger.kernel.org Signed-off-by: Johan Hovold Reviewed-by: Alexandre Courbot Signed-off-by: Linus Walleij

gpiolib: add devm_gpiod_get_array and devm_gpiod_put_array functions

2015-03-05T08:55:42+00:00

Add device managed variants of gpiod_get_array() / gpiod_put_array() functions for conveniently obtaining and disposing of an entire array of GPIOs with one function call. Signed-off-by: Rojhalat Ibrahim Reviewed-by: Alexandre Courbot Signed-off-by: Linus Walleij

gpiolib: add gpiod_get_array and gpiod_put_array functions

2015-03-05T08:52:28+00:00

Introduce new functions for conveniently obtaining and disposing of an entire array of GPIOs with one function call. ACPI parts tested by Mika Westerberg, DT parts tested by Rojhalat Ibrahim. Change log: v5: move the ACPI functions to gpiolib-acpi.c v4: - use shorter names for members of struct gpio_descs - rename lut_gpio_count to platform_gpio_count for clarity - add check for successful memory allocation - use ERR_CAST() v3: - rebase on current linux-gpio devel branch - fix ACPI GPIO counting - allow for zero-sized arrays - make the flags argument mandatory for the new functions - clarify documentation v2: change interface Suggested-by: Alexandre Courbot Signed-off-by: Rojhalat Ibrahim Reviewed-by: Alexandre Courbot Reviewed-by: Mika Westerberg Tested-by: Mika Westerberg Tested-by: Rojhalat Ibrahim Signed-off-by: Linus Walleij

gpio: add parameter to allow the use named gpios

2015-03-04T12:58:58+00:00

The gpio binding document says that new code should always use named gpios. Patch 40b73183 added support to parse a list of gpios from child nodes, but does not make it possible to use named gpios. This patch adds the con_id property and implements it is done in gpiolib.c, where the old-style of using unnamed gpios still works. Signed-off-by: Olliver Schinagl Acked-by: Bryan Wu Acked-by: Dmitry Torokhov Reviewed-by: Alexandre Courbot Signed-off-by: Linus Walleij

gpio: Make the vararg hacks not pass magic values

2015-01-15T16:23:22+00:00

Right now, in consumer.h, there's some vararg hacks that pass 0 as the flags. What actually is passed however is GPIOD_ASIS, which naturally is also 0. Using the define/enum rather then the magic 0 makes it the define more readable to a passer by. Signed-off-by: Olliver Schinagl Signed-off-by: Linus Walleij

Merge tag 'gpio-v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

2014-12-14T22:05:05+00:00

Pull take two of the GPIO updates: "Same stuff as last time, now with a fixup patch for the previous compile error plus I ran a few extra rounds of compile-testing. This is the bulk of GPIO changes for the v3.19 series: - A new API that allows setting more than one GPIO at the time. This is implemented for the new descriptor-based API only and makes it possible to e.g. toggle a clock and data line at the same time, if the hardware can do this with a single register write. Both consumers and drivers need new calls, and the core will fall back to driving individual lines where needed. Implemented for the MPC8xxx driver initially - Patched the mdio-mux-gpio and the serial mctrl driver that drives modems to use the new multiple-setting API to set several signals simultaneously - Get rid of the global GPIO descriptor array, and instead allocate descriptors dynamically for each GPIO on a certain GPIO chip. This moves us closer to getting rid of the limitation of using the global, static GPIO numberspace - New driver and device tree bindings for 74xx ICs - New driver and device tree bindings for the VF610 Vybrid - Support the RCAR r8a7793 and r8a7794 - Guidelines for GPIO device tree bindings trying to get things a bit more strict with the advent of combined device properties - Suspend/resume support for the MVEBU driver - A slew of minor fixes and improvements" * tag 'gpio-v3.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (33 commits) gpio: mcp23s08: fix up compilation error gpio: pl061: document gpio-ranges property for bindings file gpio: pl061: hook request if gpio-ranges avaiable gpio: mcp23s08: Add option to configure IRQ output polarity as active high gpio: fix deferred probe detection for legacy API serial: mctrl_gpio: use gpiod_set_array function mdio-mux-gpio: Use GPIO descriptor interface and new gpiod_set_array function gpio: remove const modifier from gpiod_get_direction() gpio: remove gpio_descs global array gpio: mxs: implement get_direction callback gpio: em: Use dynamic allocation of GPIOs gpio: Check if base is positive before calling gpio_is_valid() gpio: mcp23s08: Add simple IRQ support for SPI devices gpio: mcp23s08: request a shared interrupt gpio: mcp23s08: Do not free unrequested interrupt gpio: rcar: Add r8a7793 and r8a7794 support gpio-mpc8xxx: add mpc8xxx_gpio_set_multiple function gpiolib: allow simultaneous setting of multiple GPIO outputs gpio: mvebu: add suspend/resume support gpio: gpio-davinci: remove duplicate check on resource ..