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[v16,07/22] dt-bindings: media: i2c: max96712: add support for I2C ATR

Message ID 20260831-gmsl2-3_serdes-v16-7-4fa6e08bb514@analog.com
State New
Headers show
Series media: i2c: add Maxim GMSL2/3 serializer and deserializer drivers | expand

Commit Message

Dumitru Ceclan via B4 Relay Aug. 31, 2026, 1:21 p.m. UTC 
From: Cosmin Tanislav <demonsingur@gmail.com>

MAX96712 and MAX96724 have more than one GMSL2 link, and each link is
capable of connecting to a separate serializer. If these serializers
have the same CFG pins configuration, they will also have the same I2C
address, causing conflicts unless the deserializer changes the address
of the connected serializers.

The MAX96712 and MAX96724 support changing the I2C address of the
connected serializers.

Document this capability.

Signed-off-by: Cosmin Tanislav <demonsingur@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
---
 .../bindings/media/i2c/maxim,max96712.yaml         | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml
index 583bbd60157c..abacc3c874a9 100644
--- a/Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml
@@ -36,6 +36,30 @@  properties:
 
   enable-gpios: true
 
+  i2c-alias-pool:
+    maxItems: 4
+
+  i2c-atr:
+    type: object
+    additionalProperties: false
+
+    properties:
+      '#address-cells':
+        const: 1
+
+      '#size-cells':
+        const: 0
+
+    patternProperties:
+      '^i2c@[0-3]$':
+        $ref: /schemas/i2c/i2c-controller.yaml#
+        unevaluatedProperties: false
+        properties:
+          reg:
+            items:
+              minimum: 0
+              maximum: 3
+
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
 
@@ -78,6 +102,13 @@  required:
 
 additionalProperties: false
 
+allOf:
+  - $ref: /schemas/i2c/i2c-atr.yaml#
+
+dependentRequired:
+  i2c-atr: [i2c-alias-pool]
+  i2c-alias-pool: [i2c-atr]
+
 examples:
   - |
     #include <dt-bindings/gpio/gpio.h>