[v2,1/2] dt-bindings: adv7180: Introduce 'adv,force-bt656-4' property
Commit Message
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@gmail.com>
---
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(+)
Comments
On Fri, 04 Jun 2021 18:22:16 -0300, Fabio Estevam wrote:
> 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@gmail.com>
> ---
> 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(+)
>
Acked-by: Rob Herring <robh@kernel.org>
@@ -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