[PATCH 16/27] dt-bindings: display: rockchip: dw-hdmi: Add additional clock

[Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>]

The rk3568 HDMI has an additional clock that needs to be enabled for the
HDMI controller to work. The purpose of that clock is not clear. It is
named "hclk" in the downstream driver, so use the same name.

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
 .../bindings/display/rockchip/rockchip,dw-hdmi.yaml        | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
index d7cb2b2be60e..7dd753630b46 100644
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-hdmi.yaml
@@ -44,12 +44,13 @@ properties:
     items:
       - {}
       - {}
-      # The next three clocks are all optional, but shall be specified in this
+      # The next four clocks are all optional, but shall be specified in this
       # order when present.
       - description: The HDMI CEC controller main clock
       - description: Power for GRF IO
       - description: External clock for some HDMI PHY (old clock name, deprecated)
       - description: External clock for some HDMI PHY (new name)
+      - description: hclk
 
   clock-names:
     minItems: 2
@@ -61,13 +62,17 @@ properties:
           - grf
           - vpll
           - ref
+          - hclk
       - enum:
           - grf
           - vpll
           - ref
+          - hclk
       - enum:
           - vpll
           - ref
+          - hclk
+      - const: hclk
 
   ddc-i2c-bus:
     $ref: /schemas/types.yaml#/definitions/phandle
-- 
2.30.2