[PATCH v2 3/6] gpiolib: of: add quirk for IS31FL319X shutdown line

[Bartosz Golaszewski]

On Mon, 25 May 2026 16:46:09 +0200, Jun Yan <jerrysteve1101 at gmail.com> said:
> According to the IS31FL319x datasheet[1], the SDB pin is active‑low.
> However, existing device tree incorrectly configure it as active‑high.
>
> Add a fixup to force the consumer active low for legacy device trees.
>
> [1] https://lumissil.com/assets/pdf/core/IS31FL3196_DS.pdf
>
> Signed-off-by: Jun Yan <jerrysteve1101 at gmail.com>
> ---
>  drivers/gpio/gpiolib-of.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>
> diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
> index ef1ac68b94b7..8a79aaadc9ea 100644
> --- a/drivers/gpio/gpiolib-of.c
> +++ b/drivers/gpio/gpiolib-of.c
> @@ -194,6 +194,16 @@ 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_LEDS_IS31FL319X)
> +		/*
> +		 * According to the IS31FL319x datasheet, the SDB pin is active‑low.
> +		 * However, existing device tree incorrectly configure it
> +		 * as active‑high.
> +		 */
> +		{ "issi,is31fl3199",	"shutdown-gpios",	false },
> +		{ "si-en,sn3190",	"shutdown-gpios",	false },
> +		{ "si-en,sn3193",	"shutdown-gpios",	false },
> +#endif
>  #if IS_ENABLED(CONFIG_MTD_NAND_JZ4780)
>  		/*
>  		 * The rb-gpios semantics was undocumented and qi,lb60 (along with
> --
> 2.54.0
>
>

Acked-by: Bartosz Golaszewski <bartosz.golaszewski at oss.qualcomm.com>