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gpiolib: of: add polarity quirk for TSC2005

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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 d0d89493bf.

Fixes: d0d89493bf ("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>
This commit is contained in:
Dmitry Torokhov 2024-07-03 11:26:09 -07:00 committed by Bartosz Golaszewski
parent f07798d7bb
commit f8d76c2c31
1 changed files with 8 additions and 0 deletions
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8
drivers/gpio/gpiolib-of.c
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@ -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;