The RK3588 eDP controller needs the video datapath clock "hclk" to work
well. Previously, it works without explicitly adding this clock because
the 'rockchip,vo-grf = <&vo1_grf>' property implicitly enables HCLK_VO1.

Fixes: f855146263b1 ("dt-bindings: display: rockchip: analogix-dp: Add support 
for RK3588")
Signed-off-by: Damon Ding <[email protected]>
---
 .../bindings/display/rockchip/rockchip,analogix-dp.yaml       | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git 
a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml 
b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
index d99b23b88cc5..d2bc8636b626 100644
--- 
a/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
+++ 
b/Documentation/devicetree/bindings/display/rockchip/rockchip,analogix-dp.yaml
@@ -26,7 +26,9 @@ properties:
     items:
       - const: dp
       - const: pclk
-      - const: grf
+      - enum:
+          - grf
+          - hclk
 
   power-domains:
     maxItems: 1
-- 
2.34.1

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