[PATCH v2 3/3] dt-bindings: sound: rockchip-spdif: add power-domains property

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In the old txt situation we add/describe only properties that are used
by the driver/hardware itself. With yaml it also filters things in a
node that are used by other drivers like 'power-domains' for rk3399,
so add it to 'rockchip-spdif.yaml'.

Signed-off-by: Johan Jonker <jbx6244@xxxxxxxxx>
---
 Documentation/devicetree/bindings/sound/rockchip-spdif.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rockchip-spdif.yaml b/Documentation/devicetree/bindings/sound/rockchip-spdif.yaml
index 0546fd4cc..f79dbd153 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-spdif.yaml
+++ b/Documentation/devicetree/bindings/sound/rockchip-spdif.yaml
@@ -51,6 +51,9 @@ properties:
   dma-names:
     const: tx
 
+  power-domains:
+    maxItems: 1
+
   rockchip,grf:
     $ref: /schemas/types.yaml#/definitions/phandle
     description:
-- 
2.11.0




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