Re: [PATCH 2/2] gpio: rockchip: request GPIO mux to pinctrl when setting direction

[Heiko Stuebner]

Am Freitag, 23. September 2022, 16:51:41 CEST schrieb Quentin Schulz:
> From: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxxxxx>
> 
> Before the split of gpio and pinctrl sections in their own driver,
> rockchip_set_mux was called in pinmux_ops.gpio_set_direction for
> configuring a pin in its GPIO function.
> 
> This is essential for cases where pinctrl is "bypassed" by gpio
> consumers otherwise the GPIO function is not configured for the pin and
> it does not work. Such was the case for the sysfs/libgpiod userspace
> GPIO handling.
> 
> Let's call pinctrl_gpio_direction_input/output when setting the
> direction of a GPIO so that the pinctrl core requests from the rockchip
> pinctrl driver to put the pin in its GPIO function.
> 
> Fixes: 9ce9a02039de ("pinctrl/rockchip: drop the gpio related codes")
> Fixes: 936ee2675eee ("gpio/rockchip: add driver for rockchip gpio")
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxxxxx>

cool, thanks a lot for reimplementing this

Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx>