[U-Boot] [U-Boot, v2, 2/4] rockchip: pinctrl: rk3328: use gpio instead of sdmmc-pwren

[Philipp Tomsich]

> SDMMC-PWREN is a pin to control voltage for SDMMC IO, it may
> be high active or low active, the dwmmc driver always assume
> the sdmmc-pwren as high active.
> 
> Kernel treat this pin as fixed regulator instead of a pin from
> controller, and then it can set in dts file upon board schematic,
> that's a good solution, we can also do this in u-boot.
> 
> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
> Acked-by: Simon Glass <sjg at chromium.org>
> Acked-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
> ---
> 
> Changes in v2: None
> 
>  drivers/pinctrl/rockchip/pinctrl_rk3328.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 

Reviewed-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>