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[v3,02/12] dt-bindings: media: i2c: max9286: Add property to select I2C speed

Message ID 20221214233825.13050-3-laurent.pinchart+renesas@ideasonboard.com
State New
Headers show
Series media: i2c: max9286: Small new features | expand

Commit Message

Laurent Pinchart Dec. 14, 2022, 11:38 p.m. UTC 
The I2C speed on the remote side (the I2C master bus of the connected
serializers) is configurable, and doesn't need to match the speed of the
local bus (the slave bus of the MAX9286). All remote buses must use the
same speed, and the MAX9286 needs to be programmed accordingly. Add a
new DT property to select the speed to make it configurable.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
Changes since v2:

- Rename property to maxim,i2c-remote-bus-hz
- Specify the property type
---
 .../devicetree/bindings/media/i2c/maxim,max9286.yaml      | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
index 4f28690eabcd..315a6eef6198 100644
--- a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml
@@ -50,6 +50,14 @@  properties:
   '#gpio-cells':
     const: 2
 
+  maxim,i2c-remote-bus-hz:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [ 8470, 28300, 84700, 105000, 173000, 339000, 533000, 837000 ]
+    default: 105000
+    description: |
+      The I2C clock frequency for the remote I2C buses. The value must match
+      the configuration of the remote serializers.
+
   maxim,reverse-channel-microvolt:
     minimum: 30000
     maximum: 200000