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path: root/drivers/gpio/gpio-vx855.c
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2018-09-17gpio: vx855: Cut down on boilerplateLinus Walleij1-17/+1
Just use the SPDX header for the license. Cc: Daniel Drake <drake@endlessm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2018-09-17gpio: vx855: Include the right headerLinus Walleij1-1/+1
This is a GPIO driver so include only <linux/gpio/driver.h>. Cc: Daniel Drake <drake@endlessm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26pinctrl / gpio: Introduce .set_config() callback for GPIO chipsMika Westerberg1-6/+7
Currently we already have two pin configuration related callbacks available for GPIO chips .set_single_ended() and .set_debounce(). In future we expect to have even more, which does not scale well if we need to add yet another callback to the GPIO chip structure for each possible configuration parameter. Better solution is to reuse what we already have available in the generic pinconf. To support this, we introduce a new .set_config() callback for GPIO chips. The callback takes a single packed pin configuration value as parameter. This can then be extended easily beyond what is currently supported by just adding new types to the generic pinconf enum. If the GPIO driver is backed up by a pinctrl driver the GPIO driver can just assign gpiochip_generic_config() (introduced in this patch) to .set_config and that will take care configuration requests are directed to the pinctrl driver. We then convert the existing drivers over .set_config() and finally remove the .set_single_ended() and .set_debounce() callbacks. Suggested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-14gpio: vx855: use the new open drain callbackLinus Walleij1-0/+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>
2016-02-23gpio: vx855: Use devm_gpiochip_add_data() for gpio registrationLaxman Dewangan1-11/+1
Use devm_gpiochip_add_data() for GPIO registration and remove the need of driver callback .remove. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
2016-01-05gpio: vx855: use gpiochip data pointerLinus Walleij1-4/+4
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(). Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2015-01-15gpio: vx855: Switch to use managed resources APIsAxel Lin1-38/+6
Use devm_* APIs to simplify the code a bit. Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Alexandre Courbot <acourbot@nvidia.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>
2014-07-22gpio: remove all usage of gpio_remove retval in driver/gpioabdoulaye berthe1-2/+1
Signed-off-by: abdoulaye berthe <berthe.ab@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-12-04gpio/pinctrl: make gpio_chip members typed booleanLinus Walleij1-1/+1
This switches the two members of struct gpio_chip that were defined as unsigned foo:1 to bool, because that is indeed what they are. Switch all users in the gpio and pinctrl subsystems to assign these values with true/false instead of 0/1. The users outside these subsystems will survive since true/false is 1/0, atleast we set some kind of more strict typing example. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-30gpio: vx855: remove unnecessary platform_set_drvdata()Jingoo Han1-2/+0
The driver core clears the driver data to NULL after device_release or on probe failure, since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d (device-core: Ensure drvdata = NULL when no driver is bound). Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-11-28gpio: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Grant Likely <grant.likely@secretlab.ca> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Peter Tyser <ptyser@xes-inc.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28gpio: remove use of __devinitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28gpio: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Peter Tyser <ptyser@xes-inc.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-01-02gpio: Convert GPIO drivers to module_platform_driverMark Brown1-11/+1
Where appropriate factor out some boilerplate code for platform device registration into module_platform_driver. Drivers that don't use the standard module_init initcall haven't been converted. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-06-06gpio: reorganize driversGrant Likely1-0/+333
Sort the gpio makefile and enforce the naming convention gpio-*.c for gpio drivers. v2: cleaned up filenames in Kconfig and comment blocks v3: fixup use of BASIC_MMIO to GENERIC_GPIO for mxc Signed-off-by: Grant Likely <grant.likely@secretlab.ca>