Airoha SoC implement the same Mediatek logic for I2C bus with the only
difference of not having a dedicated reset line to reset it.

Add a dedicated compatible for the Airoha AN7581 SoC and reject the
unsupported property.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
---
 .../bindings/i2c/mediatek,mt7621-i2c.yaml          | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml b/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml
index 118ec00fc190..38118007b601 100644
--- a/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml
@@ -14,7 +14,9 @@ allOf:
 
 properties:
   compatible:
-    const: mediatek,mt7621-i2c
+    enum:
+      - mediatek,mt7621-i2c
+      - airoha,an7581-i2c
 
   reg:
     maxItems: 1
@@ -38,6 +40,16 @@ required:
   - "#address-cells"
   - "#size-cells"
 
+if:
+  properties:
+    compatible:
+      contains:
+        const: airoha,an7581-i2c
+then:
+  properties:
+    resets: false
+    reset-names: false
+
 unevaluatedProperties: false
 
 examples:
-- 
2.50.0

On Sat, Jul 19, 2025 at 02:56:13PM +0200, Christian Marangi wrote:
> Airoha SoC implement the same Mediatek logic for I2C bus with the only
> difference of not having a dedicated reset line to reset it.
> 
> Add a dedicated compatible for the Airoha AN7581 SoC and reject the
> unsupported property.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> ---
>  .../bindings/i2c/mediatek,mt7621-i2c.yaml          | 14 +++++++++++++-
>  1 file changed, 13 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml b/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml
> index 118ec00fc190..38118007b601 100644
> --- a/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml
> +++ b/Documentation/devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml
> @@ -14,7 +14,9 @@ allOf:
>  
>  properties:
>    compatible:
> -    const: mediatek,mt7621-i2c
> +    enum:
> +      - mediatek,mt7621-i2c
> +      - airoha,an7581-i2c

Keep list ordered.

Best regards,
Krzysztof