Captured NTSC video would be out of sync when using the adv7280 with
the BT.656-4 protocol. Certain registers (0x04, 0x31, 0xE6) need to
be configured properly to ensure BT.656-4 compatibility.
Introduce the 'adv,force-bt656-4' property to allow the ADV7280
behavior to be consistent with the ADV7180, where BT.656-4 timing
is used by default.
Signed-off-by: Fabio Estevam <festevam@xxxxxxxxx>
---
Changes since v1:
- Remove the part number from the property name (Rob)
Documentation/devicetree/bindings/media/i2c/adv7180.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/media/i2c/adv7180.yaml b/Documentation/devicetree/bindings/media/i2c/adv7180.yaml
index bcfd93739b4f..83e47b0c9fa2 100644
--- a/Documentation/devicetree/bindings/media/i2c/adv7180.yaml
+++ b/Documentation/devicetree/bindings/media/i2c/adv7180.yaml
@@ -35,6 +35,11 @@ properties:
powerdown-gpios:
maxItems: 1
+ adv,force-bt656-4:
+ description:
+ Indicates that the output is a BT.656-4 compatible stream.
+ type: boolean
+
port:
$ref: /schemas/graph.yaml#/properties/port
--
2.25.1
