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@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@ff040000 {
2.7.4