[PATCH 1/2] dt-bindings: i2c: mt7621: Document an7581 compatible

[Christian Marangi]

Airoha SoC implement the same Mediatek logic for I2C bus with the only
difference of not having SCL_STRETCH bit.

Add a dedicated compatible for the Airoha AN7581 SoC to abbount for this
minor bit variant.

Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx>
---
 .../devicetree/bindings/i2c/mediatek,mt7621-i2c.yaml          | 4 +++-
 1 file changed, 3 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..e6ea5bc1c681 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:
+      - airoha,an7581-i2c
+      - mediatek,mt7621-i2c
 
   reg:
     maxItems: 1
-- 
2.55.0