Thread (9 messages) 9 messages, 3 authors, 2026-02-22
STALE126d REVIEWED: 1 (0M)
Revisions (3)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 current

[PATCH v3 1/5] dt-bindings: display: rockchip: Add rk3576 DisplayPort

From: Andy Yan <hidden>
Date: 2026-02-06 01:05:58
Also in: dri-devel, linux-devicetree, linux-rockchip, lkml
Subsystem: drm driver for synopsys designware displayport bridge, drm drivers, drm drivers and misc gpu patches, drm drivers for rockchip, open firmware and flattened device tree bindings, the rest · Maintainers: Andy Yan, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Sandy Huang, Heiko Stübner, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

From: Andy Yan <andy.yan@rock-chips.com>

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 <redacted>

---

Changes in v3:
- Fix compatible order

Changes in v2:
- Remove unnecessary maxItems

 .../display/rockchip/rockchip,dw-dp.yaml      | 27 ++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml b/Documentation/devicetree/bindings/display/rockchip/rockchip,dw-dp.yaml
index 6345f0132d43..2b0d9e23e943 100644
--- 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:
-- 
2.43.0

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