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gpiolib: of: add quirk for locating reset lines with legacy bindings

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Some legacy mappings used "gpio[s]-reset" instead of "reset-gpios",
add a quirk so that gpiod API will still work on unmodified DTSes.

Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Dmitry Torokhov 2022-10-17 22:41:05 -07:00 committed by Bartosz Golaszewski
parent 307c593ba5
commit fbbbcd177a
1 changed files with 16 additions and 0 deletions
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16
drivers/gpio/gpiolib-of.c
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@ -382,9 +382,18 @@ static struct gpio_desc *of_find_gpio_rename(struct device_node *np,
*/
const char *compatible;
} gpios[] = {
#if !IS_ENABLED(CONFIG_LCD_HX8357)
/* Himax LCD controllers used "gpios-reset" */
{ "reset", "gpios-reset", "himax,hx8357" },
{ "reset", "gpios-reset", "himax,hx8369" },
#endif
#if IS_ENABLED(CONFIG_MFD_ARIZONA)
{ "wlf,reset", NULL, NULL },
#endif
#if !IS_ENABLED(CONFIG_PCI_LANTIQ)
/* MIPS Lantiq PCI */
{ "reset", "gpios-reset", "lantiq,pci-xway" },
#endif
/*
* Some regulator bindings happened before we managed to
@ -399,6 +408,13 @@ static struct gpio_desc *of_find_gpio_rename(struct device_node *np,
{ "wlf,ldo2ena", NULL, NULL }, /* WM8994 */
#endif
#if IS_ENABLED(CONFIG_SND_SOC_TLV320AIC3X)
{ "reset", "gpio-reset", "ti,tlv320aic3x" },
{ "reset", "gpio-reset", "ti,tlv320aic33" },
{ "reset", "gpio-reset", "ti,tlv320aic3007" },
{ "reset", "gpio-reset", "ti,tlv320aic3104" },
{ "reset", "gpio-reset", "ti,tlv320aic3106" },
#endif
#if IS_ENABLED(CONFIG_SPI_GPIO)
/*
* The SPI GPIO bindings happened before we managed to