5.15-stable review patch. If anyone has any objections, please let me know.
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From: Dmitry Torokhov dmitry.torokhov@gmail.com
[ Upstream commit f8d76c2c313c56d5cb894a243dff4550f048278d ]
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 dmitry.torokhov@gmail.com Acked-by: Linus Walleij linus.walleij@linaro.org Link: https://lore.kernel.org/r/ZoWXwYtwgJIxi-hD@google.com Signed-off-by: Bartosz Golaszewski bartosz.golaszewski@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpio/gpiolib-of.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 7a77d9cd9c774..608526ce7bab0 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -173,6 +173,14 @@ static void of_gpio_try_fixup_polarity(const struct device_node *np, */ { "himax,hx8357", "gpios-reset", false }, { "himax,hx8369", "gpios-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;