From f8d76c2c313c56d5cb894a243dff4550f048278d Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Wed, 3 Jul 2024 11:26:09 -0700 Subject: gpiolib: of: add polarity quirk for TSC2005 DTS for Nokia N900 incorrectly specifies "active high" polarity for the reset line, while the chip documentation actually specifies it as "active low". In the past the driver fudged gpiod API and inverted the logic internally, but it was changed in d0d89493bff8. Fixes: d0d89493bff8 ("Input: tsc2004/5 - switch to using generic device properties") Signed-off-by: Dmitry Torokhov Acked-by: Linus Walleij Link: https://lore.kernel.org/r/ZoWXwYtwgJIxi-hD@google.com Signed-off-by: Bartosz Golaszewski --- drivers/gpio/gpiolib-of.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers/gpio') diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 38679cf1969f..89d5e64cf68b 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -212,6 +212,14 @@ static void of_gpio_try_fixup_polarity(const struct device_node *np, * for the property. */ { "lantiq,pci-xway", "gpio-reset", false }, +#endif +#if IS_ENABLED(CONFIG_TOUCHSCREEN_TSC2005) + /* + * DTS for Nokia N900 incorrectly specified "active high" + * polarity for the reset line, while the chip actually + * treats it as "active low". + */ + { "ti,tsc2005", "reset-gpios", false }, #endif }; unsigned int i; -- cgit v1.2.3