The MediaTek DP hardware supports audio, and the "#sound-dai-cells"
property is required to describe DAI links and audio routing.
Add "#sound-dai-cells" property to the binding and filter out non-DP
compatibles, as MediaTek eDP doesn't support audio.
Signed-off-by: Fei Shao <fshao@xxxxxxxxxxxx>
---
.../bindings/display/mediatek/mediatek,dp.yaml | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml
index 2aef1eb32e11..c05c2b409780 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dp.yaml
@@ -42,6 +42,9 @@ properties:
interrupts:
maxItems: 1
+ "#sound-dai-cells":
+ const: 0
+
ports:
$ref: /schemas/graph.yaml#/properties/ports
properties:
@@ -87,6 +90,19 @@ required:
additionalProperties: false
+allOf:
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - mediatek,mt8188-dp-tx
+ - mediatek,mt8195-dp-tx
+ then:
+ properties:
+ "#sound-dai-cells": false
+
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
--
2.47.0.163.g1226f6d8fa-goog
