linux-kernel - [PATCH 3/5] dt-bindings: i2c: mt7621: Document an7581 compatible

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Message-ID: <20250719125617.8886-4-ansuelsmth@gmail.com>
Date: Sat, 19 Jul 2025 14:56:13 +0200
From: Christian Marangi <ansuelsmth@...il.com>
To: Stefan Roese <sr@...x.de>,
	Andi Shyti <andi.shyti@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	linux-i2c@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Cc: Christian Marangi <ansuelsmth@...il.com>
Subject: [PATCH 3/5] dt-bindings: i2c: mt7621: Document an7581 compatible

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@...il.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