dt-bindings: display: rockchip: Add rk3576 DisplayPort

The DisplayPort found on RK3576 is very similar to that of RK3588,
but work in dual pixel mode. And itself does not depend on the I2S
clock or the SPDIF clock when transmit audio.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260206010421.443605-2-andyshrk@163.com

diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml
index 6345f0132d43db9c924ed4f920ed389c44a92e9c..2b0d9e23e9432f785c1c8bb595166baa47984b5a 100644 (file)
--- a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml
+++ b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml
@@ -27,12 +27,10 @@ description: |
   * Pixel clock up to 594MHz
   * I2S, SPDIF audio interface
 
-allOf:
-  - $ref: /schemas/sound/dai-common.yaml#
-
 properties:
   compatible:
     enum:
+      - rockchip,rk3576-dp
       - rockchip,rk3588-dp
 
   reg:
@@ -42,6 +40,7 @@ properties:
     maxItems: 1
 
   clocks:
+    minItems: 3
     items:
       - description: Peripheral/APB bus clock
       - description: DisplayPort AUX clock
@@ -50,6 +49,7 @@ properties:
       - description: SPDIF interfce clock
 
   clock-names:
+    minItems: 3
     items:
       - const: apb
       - const: aux
@@ -95,6 +95,27 @@ required:
   - ports
   - resets
 
+allOf:
+  - $ref: /schemas/sound/dai-common.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rk3588-dp
+    then:
+      properties:
+        clocks:
+          minItems: 5
+        clock-names:
+          minItems: 5
+    else:
+      properties:
+        clocks:
+          maxItems: 3
+        clock-names:
+          maxItems: 3
+
 unevaluatedProperties: false
 
 examples: