linux-kernel - [PATCH 3/7] dt-bindings: i2c: document st,stm32mp25-i2c compatible

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Date:   Wed, 29 Nov 2023 13:59:12 +0100
From:   Alain Volmat <alain.volmat@...s.st.com>
To:     Andi Shyti <andi.shyti@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Pierre-Yves MORDRET <pierre-yves.mordret@...s.st.com>,
        Alain Volmat <alain.volmat@...s.st.com>
CC:     <linux-i2c@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/7] dt-bindings: i2c: document st,stm32mp25-i2c compatible

Add a new compatible st,stm32mp25-i2c for the STM32MP25 series which
has only one interrupt line for both events and errors and differs in
term of handling of FastModePlus.

Signed-off-by: Alain Volmat <alain.volmat@...s.st.com>
---
 .../devicetree/bindings/i2c/st,stm32-i2c.yaml | 49 +++++++++++++++----
 1 file changed, 39 insertions(+), 10 deletions(-)

diff --git a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml
index 94b75d9f66cd..6a69bb6de23e 100644
--- a/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml
+++ b/Documentation/devicetree/bindings/i2c/st,stm32-i2c.yaml
@@ -19,6 +19,7 @@ allOf:
               - st,stm32f7-i2c
               - st,stm32mp13-i2c
               - st,stm32mp15-i2c
+              - st,stm32mp25-i2c
     then:
       properties:
         i2c-scl-rising-time-ns:
@@ -41,6 +42,43 @@ allOf:
         clock-frequency:
           enum: [100000, 400000]
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - st,stm32f4-i2c
+              - st,stm32f7-i2c
+              - st,stm32mp13-i2c
+              - st,stm32mp15-i2c
+    then:
+      properties:
+        interrupts:
+          items:
+            - description: interrupt ID for I2C event
+            - description: interrupt ID for I2C error
+
+        interrupt-names:
+          items:
+            - const: event
+            - const: error
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - st,stm32mp25-i2c
+    then:
+      properties:
+        interrupts:
+          items:
+            - description: common interrupt for events and errors
+
+        interrupt-names:
+          items:
+            - const: event
+
 properties:
   compatible:
     enum:
@@ -48,20 +86,11 @@ properties:
       - st,stm32f7-i2c
       - st,stm32mp13-i2c
       - st,stm32mp15-i2c
+      - st,stm32mp25-i2c
 
   reg:
     maxItems: 1
 
-  interrupts:
-    items:
-      - description: interrupt ID for I2C event
-      - description: interrupt ID for I2C error
-
-  interrupt-names:
-    items:
-      - const: event
-      - const: error
-
   resets:
     maxItems: 1
 
-- 
2.25.1