[PATCH] ASoC: rockchip-i2s: add power-domains property

[Johan Jonker]

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-i2s.yaml'.

Signed-off-by: Johan Jonker <jbx6244@xxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20200324094149.6904-3-jbx6244@xxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
 Documentation/devicetree/bindings/sound/rockchip-i2s.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
index 7cd0e278ed85..a3ba2186d6a1 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.yaml
@@ -56,6 +56,9 @@ properties:
       - const: tx
       - const: rx
 
+  power-domains:
+    maxItems: 1
+
   rockchip,capture-channels:
     allOf:
       - $ref: /schemas/types.yaml#/definitions/uint32
-- 
2.20.1