On Wed, Aug 02, 2023 at 01:26:02AM +0200, Marek Vasut wrote:
> The current gpio-uclass design uses name field in struct gpio_dev_priv as
> an indicator that GPIO is claimed by consumer. This overloads the function
> of name field and does not work well for named pins not configured as GPIO
> pins.
>
> Introduce separate bitfield array as the claim indicator.
>
> This unbreaks dual-purpose AF and GPIO operation on STM32MP since commit
> 2c38f7c31806 ("pinctrl: pinctrl_stm32: Populate uc_priv->name[] with pinmux
> node's name")
> where any pin which has already been configured as AF could no longer be
> claimed as dual-purpose GPIO. This is important for pins like STM32 MMCI
> st,cmd-gpios .
>
> Signed-off-by: Marek Vasut <[email protected]>
> Reviewed-by: Simon Glass <[email protected]>Applied to u-boot/next, thanks! -- Tom
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