[Linux-stm32] [PATCH] pinctrl: stmfx: update pinconf settings

[Linus Walleij]

On Thu, Jul 25, 2019 at 1:16 PM Amelie Delaunay <amelie.delaunay at st.com> wrote:

> From: Alexandre Torgue <alexandre.torgue at st.com>
>
> According to the following tab (coming from STMFX datasheet), updates
> have to done in stmfx_pinconf_set function:
>
> -"type" has to be set when "bias" is configured as "pull-up or pull-down"
> -PIN_CONFIG_DRIVE_PUSH_PULL should only be used when gpio is configured as
>  output. There is so no need to check direction.
>
> DIR | TYPE | PUPD | MFX GPIO configuration
> ----|------|------|---------------------------------------------------
> 1   | 1    | 1    | OUTPUT open drain with internal pull-up resistor
> ----|------|------|---------------------------------------------------
> 1   | 1    | 0    | OUTPUT open drain with internal pull-down resistor
> ----|------|------|---------------------------------------------------
> 1   | 0    | 0/1  | OUTPUT push pull no pull
> ----|------|------|---------------------------------------------------
> 0   | 1    | 1    | INPUT with internal pull-up resistor
> ----|------|------|---------------------------------------------------
> 0   | 1    | 0    | INPUT with internal pull-down resistor
> ----|------|------|---------------------------------------------------
> 0   | 0    | 1    | INPUT floating
> ----|------|------|---------------------------------------------------
> 0   | 0    | 0    | analog (GPIO not used, default setting)
>
> Signed-off-by: Alexandre Torgue <alexandre.torgue at st.com>
> Signed-off-by: Amelie Delaunay <amelie.delaunay at st.com>

Patch applied.

Yours,
Linus Walleij