6.6-stable review patch. If anyone has any objections, please let me know.
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From: Peng Fan peng.fan@nxp.com
[ Upstream commit 4e310626eb4df52a31a142c1360fead0fcbd3793 ]
This is prepare patch for switching s5m8767 regulator driver to use GPIO descriptor. DTS for exynos5250 spring incorrectly specifies "active low" polarity for the DVS and DS line. But per datasheet, they are actually active high. So add polarity quirk for it.
Signed-off-by: Peng Fan peng.fan@nxp.com Reviewed-by: Linus Walleij linus.walleij@linaro.org Link: https://lore.kernel.org/r/20250327004945.563765-1-peng.fan@oss.nxp.com Signed-off-by: Bartosz Golaszewski bartosz.golaszewski@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpio/gpiolib-of.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index a0a2a0f75bba4..c1e83b2926ae4 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -203,6 +203,15 @@ static void of_gpio_try_fixup_polarity(const struct device_node *np, */ { "lantiq,pci-xway", "gpio-reset", false }, #endif +#if IS_ENABLED(CONFIG_REGULATOR_S5M8767) + /* + * According to S5M8767, the DVS and DS pin are + * active-high signals. However, exynos5250-spring.dts use + * active-low setting. + */ + { "samsung,s5m8767-pmic", "s5m8767,pmic-buck-dvs-gpios", true }, + { "samsung,s5m8767-pmic", "s5m8767,pmic-buck-ds-gpios", true }, +#endif #if IS_ENABLED(CONFIG_TOUCHSCREEN_TSC2005) /* * DTS for Nokia N900 incorrectly specified "active high"