diff mbox series

[v4,6/7] ASoC: dt-bindings: rockchip: pdm: Document property 'rockchip, path-map'

Message ID 1630675438-3418-1-git-send-email-sugar.zhang@rock-chips.com (mailing list archive)
State New, archived
Headers show
Series Patches to update for rockchip pdm | expand

Commit Message

Sugar Zhang Sept. 3, 2021, 1:23 p.m. UTC 
This is an optional property to describe data path mapping.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Acked-by: Rob Herring <robh@kernel.org>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 Documentation/devicetree/bindings/sound/rockchip,pdm.txt | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
diff mbox series

Patch

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
+  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 {