[PATCH v2] dt-bindings: mediatek: hdmi-ddc: Correct the compatibles for mt7623-mt8167

[Luca Leonardo Scorcia <l.scorcia@gmail.com>]

The HDMI DDC driver for both mt7623 and mt8167 is actually the same as
mt8173-hdmi-ddc and the mt7623n.dtsi board include file already uses
mt8173-hdmi-ddc compatible as a fallback, but the documentation lists
them as separate entries. Correct the binding by adding the correct
fallback.

Fixes the following dtbs_check error in mt7623n-rfb-emmc.dts and
mt7623n-bananapi-bpi-r2.dts:

i2c@11013000 (mediatek,mt7623-hdmi-ddc): compatible:
  ['mediatek,mt7623-hdmi-ddc', 'mediatek,mt8173-hdmi-ddc'] is too long

Signed-off-by: Luca Leonardo Scorcia <l.scorcia@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
---
Changes in v2: Simplified error description in commit message.
Initial version: [1]

[1] https://lore.kernel.org/linux-mediatek/20260624173514.19752-1-l.scorcia@gmail.com/

 .../bindings/display/mediatek/mediatek,hdmi-ddc.yaml  | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi-ddc.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi-ddc.yaml
index bd8f7b8ae0ff..966127e1ee63 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi-ddc.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi-ddc.yaml
@@ -15,10 +15,13 @@ description: |
 
 properties:
   compatible:
-    enum:
-      - mediatek,mt7623-hdmi-ddc
-      - mediatek,mt8167-hdmi-ddc
-      - mediatek,mt8173-hdmi-ddc
+    oneOf:
+      - const: mediatek,mt8173-hdmi-ddc
+      - items:
+          - enum:
+              - mediatek,mt7623-hdmi-ddc
+              - mediatek,mt8167-hdmi-ddc
+          - const: mediatek,mt8173-hdmi-ddc
 
   reg:
     maxItems: 1
-- 
2.43.0