[PATCH 19/21] dt-bindings: media: imx258: Add alternate compatible strings

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There are a number of variants of the imx258 modules that can not
be differentiated at runtime, so add compatible strings for them.

Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
---
 .../devicetree/bindings/media/i2c/sony,imx258.yaml         | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml b/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
index bee61a443b23..3415b26b5991 100644
--- a/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/sony,imx258.yaml
@@ -14,10 +14,15 @@ description: |-
   type stacked image sensor with a square pixel array of size 4208 x 3120. It
   is programmable through I2C interface.  Image data is sent through MIPI
   CSI-2.
+  There are a number of variants of the sensor which cannot be detected at
+  runtime, so multiple compatible strings are required to differentiate these.
 
 properties:
   compatible:
-    const: sony,imx258
+    oneOf:
+      - enum:
+          - sony,imx258
+          - sony,imx258-pdaf
 
   assigned-clocks: true
   assigned-clock-parents: true
-- 
2.25.1




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