[PATCH next v2 04/17] dt-bindings: phy: mediatek: dsi-phy: add optional clock-names

[Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>]

Add an optional "clock-names" property, it's not used to get the clock,
but some DTS files (e.g. mt8183) provide it.

Cc: Chun-Kuang Hu <chunkuang.hu@xxxxxxxxxx>
Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>
---
v2: new patch separated from [3/15] suggested by CK
---
 Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml
index 6e4d795f9b02..af6e554c5b69 100644
--- a/Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/mediatek,dsi-phy.yaml
@@ -35,6 +35,10 @@ properties:
     items:
       - description: PLL reference clock
 
+  clock-names:
+    items:
+      - const: ref
+
   clock-output-names:
     maxItems: 1
 
-- 
2.18.0