Re: [PATCH v2 08/11] pinctrl: mediatek: paris: Support generic PIN_CONFIG_DRIVE_STRENGTH_UA

[AngeloGioacchino Del Regno]

Il 08/03/22 11:09, Chen-Yu Tsai ha scritto:
> Some of the MediaTek chips that utilize the Paris pinctrl driver library
> support a lower drive strength (<= 1mA) than the standard drive strength
> settings (2~16 mA) on certain pins. This was previously supported by the
> custom MTK_PIN_CONFIG_DRV_ADV parameter along with the
> "mediatek,drive-strength-adv" device tree property.
>
> The drive strength values for this hardware are 125, 250, 500, and 1000 mA,
> and can be readily described by the existing "drive-strength-microamp"
> property, which then gets parsed by the generic pinconf library into the
> parameter PIN_CONFIG_DRIVE_STRENGTH_UA.
>
> Add support for PIN_CONFIG_DRIVE_STRENGTH_UA while keeping the old
> custom parameter around for backward compatibility.
>
> Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>

> ---
>   drivers/pinctrl/mediatek/pinctrl-paris.c | 99 ++++++++++++++++++++++++
>   1 file changed, 99 insertions(+)