On Tue, Aug 24, 2021 at 03:54:15PM +0800, Sugar Zhang wrote:
> This is an optional property to describe data path mapping.
>
> Signed-off-by: Sugar Zhang <sugar.zhang@xxxxxxxxxxxxxx>
> ---
>
> Documentation/devicetree/bindings/sound/rockchip,pdm.txt | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt
> index 54d94438..b2d7e47 100644
> --- a/Documentation/devicetree/bindings/sound/rockchip,pdm.txt
> +++ b/Documentation/devicetree/bindings/sound/rockchip,pdm.txt
> @@ -24,6 +24,22 @@ Required properties:
> pinctrl-names. See ../pinctrl/pinctrl-bindings.txt
> for details of the property values.
>
> +Optional properties:
> +- rockchip,path-map: This is a variable length array, that shows the mapping
The schema says this is a fixed length array.
> + of SDIx to PATHx. By default, they are one-to-one mapping as follows:
> +
> + path0 <-- sdi0
> + path1 <-- sdi1
> + path2 <-- sdi2
> + path3 <-- sdi3
> +
> + e.g. "rockchip,path-map = <3 2 1 0>" means the mapping as follows:
> +
> + path0 <-- sdi3
> + path1 <-- sdi2
> + path2 <-- sdi1
> + path3 <-- sdi0
> +
> Example for rk3328 PDM controller:
>
> pdm: pdm@ff040000 {
> --
> 2.7.4
>
>
>
>
