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path: root/drivers/gpio/gpio-axp209.c (follow)
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* gpio: axp209: use correct register for GPIO input statusQuentin Schulz2016-11-241-6/+2
| | | | | | | | The GPIO input status was read from control register (AXP20X_GPIO[210]_CTRL) instead of status register (AXP20X_GPIO20_SS). Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: axp209: Implement get_directionMaxime Ripard2016-09-231-0/+30
| | | | | | | | | | | | Implement the get_direction callback for the GPIOs found in the AXP209 PMIC. Due to the way they are implemented, in the same register you have the muxing options, GPIO directions and GPIO values. Since you have no control over what value is there at reset, simply use output as the default. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
* gpio: Add AXP209 GPIO driverMaxime Ripard2016-08-111-0/+162
The AXP209 PMIC has a bunch of GPIOs accessible, that are usually used to control LEDs or backlight. Add a driver for them Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>