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

[Dumitru Ceclan via B4 Relay <devnull+dumitru.ceclan.analog.com@kernel.org>]

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 --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>

-- 
2.53.0