[PATCH v1 6/7] ASoC: dt-bindings: rockchip: pdm: Document property 'rockchip,path-map'

[Rob Herring]

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 at rock-chips.com>
> ---
> 
>  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 at ff040000 {
> -- 
> 2.7.4
> 
> 
> 
>