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path: root/drivers/gpio/gpio-rockchip.c
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2022-02-16gpio: rockchip: Reset int_bothedge when changing triggerSamuel Holland1-27/+29
With v2 hardware, an IRQ can be configured to trigger on both edges via a bit in the int_bothedge register. Currently, the driver sets this bit when changing the trigger type to IRQ_TYPE_EDGE_BOTH, but fails to reset this bit if the trigger type is later changed to something else. This causes spurious IRQs, and when using gpio-keys with wakeup-event-action set to EV_ACT_(DE)ASSERTED, those IRQs translate into spurious wakeups. Fixes: 3bcbd1a85b68 ("gpio/rockchip: support next version gpio controller") Reported-by: Guillaume Savaton <guillaume@baierouge.fr> Tested-by: Guillaume Savaton <guillaume@baierouge.fr> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2021-12-17gpio: Get rid of duplicate of_node assignment in the driversAndy Shevchenko1-3/+0
GPIO library does copy the of_node from the parent device of the GPIO chip, there is no need to repeat this in the individual drivers. Remove these assignment all at once. For the details one may look into the of_gpio_dev_init() implementation. While at it, remove duplicate parent device assignment where it is the case. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-By: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2021-12-03gpio: rockchip: lock GPIOs used as interruptsJohn Keeping1-0/+18
Use the standard gpiochip request/release resource functions so that any GPIOs used as interrupts are properly locked. This allows libgpiod to correctly show these GPIOs as in-use. Signed-off-by: John Keeping <john@metanate.com> Tested-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2021-09-29Merge tag 'pinctrl-v5.15-2' of ↵Linus Torvalds1-0/+22
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control fixes from Linus Walleij: "Some few pin control fixes for the v5.15 kernel cycle. The most critical is the AMD fixes. - Fix wakeup interrupts in the AMD driver affecting AMD laptops. - Fix parent irqspec translation in the Qualcomm SPMI GPIO driver. - Fix deferred probe handling in the Rockchip driver, this is a stopgap solution while we look for something more elegant. - Add PM suspend callbacks to the Qualcomm SC7280 driver. - Some minor doc fix (should have come in earlier, sorry)" * tag 'pinctrl-v5.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: qcom: sc7280: Add PM suspend callbacks gpio/rockchip: fetch deferred output settings on probe pinctrl/rockchip: add a queue for deferred pin output settings on probe pinctrl: qcom: spmi-gpio: correct parent irqspec translation pinctrl: amd: Handle wake-up interrupt pinctrl: amd: Add irq field data pinctrl: core: Remove duplicated word from devm_pinctrl_unregister()
2021-09-22gpio/rockchip: fix get_direction value handlingHeiko Stuebner1-1/+1
The function uses the newly introduced rockchip_gpio_readl_bit() which directly returns the actual value of the requeste bit. So using the existing bit-wise check for the bit inside the value will always return 0. Fix this by dropping the bit manipulation on the result. Fixes: 3bcbd1a85b68 ("gpio/rockchip: support next version gpio controller") Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2021-09-22gpio/rockchip: extended debounce support is only available on v2Heiko Stuebner1-1/+1
The gpio driver runs into issues on v1 gpio blocks, as the db_clk and the whole extended debounce support is only ever defined on v2. So checking for the IS_ERR on the db_clk is not enough, as it will be NULL on v1. Fix this by adding the needed condition for v2 first before checking the existence of the db_clk. This caused my rk3288-veyron-pinky to enter a reboot loop when it tried to enable the power-key as adc-key device. Fixes: 3bcbd1a85b68 ("gpio/rockchip: support next version gpio controller") Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2021-09-18gpio/rockchip: fetch deferred output settings on probeHeiko Stuebner1-0/+22
Fetch the output settings the pinctrl driver may have created for pinctrl hogs and set the relevant pins as requested. Fixes: 9ce9a02039de ("pinctrl/rockchip: drop the gpio related codes") Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20210913224926.1260726-5-heiko@sntech.de Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-17gpio/rockchip: drop irq_gc_lock/irq_gc_unlock for irq set typeJianqun Xu1-2/+0
There has spin lock for irq set type already, so drop irq_gc_lock and irq_gc_unlock. Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Link: https://lore.kernel.org/r/20210816012135.1119234-1-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-17gpio/rockchip: support next version gpio controllerJianqun Xu1-72/+211
The next version gpio controller on SoCs like rk3568 have more write mask bits for registers. Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Link: https://lore.kernel.org/r/20210816012123.1119179-1-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-17gpio/rockchip: use struct rockchip_gpio_regs for gpio controllerJianqun Xu1-39/+47
Store register offsets in the struct rockchip_gpio_regs, this patch prepare for the driver update for new gpio controller. Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Link: https://lore.kernel.org/r/20210816012111.1119125-1-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2021-08-17gpio/rockchip: add driver for rockchip gpioJianqun Xu1-0/+626
This patch add support for rockchip gpio controller, which is supported in pinctrl driver in the past. With this patch, the pinctrl-rockchip driver will drop gpio related codes and populate platform driver to gpio-rockchip. Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com> Link: https://lore.kernel.org/r/20210816012053.1119069-1-jay.xu@rock-chips.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>