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

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

[Luca Leonardo Scorcia]

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.

This change fixes the following dtbs_check errors:

DTC [C] arch/arm/boot/dts/mediatek/mt7623n-rfb-emmc.dtb
i2c@11013000 (mediatek,mt7623-hdmi-ddc): compatible:
  ['mediatek,mt7623-hdmi-ddc', 'mediatek,mt8173-hdmi-ddc'] is too long
DTC [C] arch/arm/boot/dts/mediatek/mt7623n-bananapi-bpi-r2.dtb
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>
---
 .../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

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

[Krzysztof Kozlowski]

On 24/06/2026 19:34, Luca Leonardo Scorcia wrote:
> 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.
> 
> This change fixes the following dtbs_check errors:
> 
> DTC [C] arch/arm/boot/dts/mediatek/mt7623n-rfb-emmc.dtb

This you can drop, not relevant and such redundant logs only make it
more difficult to understand the error message. I asked only to paste
here the error.

Anyway,

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof