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2023-06-13gpiolib: remove unused gpio_cansleep()Andy Shevchenko7-63/+7
There is not a single user in the entire kernel of this deprecated API, kill it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-13gpio: tps65219: add GPIO support for TPS65219 PMICJerome Neanne4-0/+203
Add support for TPS65219 PMICs GPIO interface. 3 GPIO pins: - GPIO0 only is IO but input mode reserved for MULTI_DEVICE_ENABLE usage. - GPIO1 and GPIO2 are Output only and referred as GPO1 and GPO2 in spec. GPIO0 is statically configured as input or output prior to Linux boot. it is used for MULTI_DEVICE_ENABLE function. This setting is statically configured by NVM. GPIO0 can't be used as a generic GPIO (specification Table 8-34). It's either a GPO when MULTI_DEVICE_EN=0 or a GPI when MULTI_DEVICE_EN=1. Datasheet describes specific usage for non standard GPIO. Datasheet: https://www.ti.com/lit/ds/symlink/tps65219.pdf Co-developed-by: Jonathan Cormier <jcormier@criticallink.com> Signed-off-by: Jonathan Cormier <jcormier@criticallink.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jerome Neanne <jneanne@baylibre.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-13gpio: zynq: fix zynqmp_gpio not an immutable chip warningManikanta Guntupalli1-7/+15
Make the struct irq_chip const and flag it as IRQCHIP_IMMUTABLE, call gpiochip_disable_irq() in the .irq_mask() callback and gpiochip_enable_irq() in the .irq_unmask() callback to fix "gpio gpiochip1: (zynqmp_gpio): not an immutable chip" warning. Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli@amd.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-13gpio: davinci: make davinci_gpio_dev_pm_ops staticMin-Hua Chen1-1/+1
This patch fixes the following sprse warnings: drivers/gpio/gpio-davinci.c:695:1: sparse: warning: symbol 'davinci_gpio_dev_pm_ops' was not declared. Should it be static? No functional change intended. Signed-off-by: Min-Hua Chen <minhuadotchen@gmail.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-09gpiolib: Do not unexport GPIO on freeingAndy Shevchenko1-2/+0
Since the legacy exporting is gone with 2f804aca4832 ("gpiolib: Kill unused GPIOF_EXPORT and Co") there is no need to unexport GPIO on freeing. Remove that call. Note, the other users of this functionality do that explicitly, except one SH and one OMAP boardfile which don't free GPIO anyways, so it is safe to drop the call. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-07gpiolib: demote the hogging log messages to debugBartosz Golaszewski2-9/+9
Drivers should be silent when they work correctly. There's no reason to emit info messages when GPIO lines are hogged. Demote the message to debug. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Suggested-by: Kent Gibson <warthog618@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2023-06-06dt-bindings: gpio: gpio-delay: Spelling s/curcuit/circuit/Geert Uytterhoeven1-2/+2
Fix misspellings of "circuit". Fixes: c7239a3da1628767 ("dt-bindings: gpio: Add gpio-delay binding document") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-05gpio: Fix dependency for gpio-delayAlexander Stein1-0/+1
This driver relies on OF_GPIO features, add a dependency to Kconfig. Fixes: cf5dec80c4e2 ("gpio: Add gpio delay driver") Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2023-06-02gpio: Add gpio delay driverAlexander Stein3-0/+173
This driver implements a GPIO enable/disable delay. It supports a list of GPIO outputs, which ramp-up/ramp-down delay can be specified at consumer location. The main purpose is to address external, passive delays upon line voltage changes. Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>