Re: [PATCH v2 1/3] dt-bindings: media: ov772x: Document endpoint properties

Hello Prabhakar,

On Sat, Aug 15, 2020 at 11:34:33AM +0100, Lad, Prabhakar wrote:

Hi Jacopo,

On Mon, Aug 3, 2020 at 12:39 PM Lad Prabhakar
[off-list ref] wrote:

quoted

Document endpoint properties required for parallel interface

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../devicetree/bindings/media/i2c/ov772x.txt     | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

I see you already have a patch for YAML conversion for OV772x binding
[1], if you plan to post a v2 would you be OK to pick these changes as
part of your conversion changes ?

Sure thing, I'll add the following properties to the series!

Thanks
  j

[1] https://www.spinics.net/lists/linux-media/msg173201.html

Cheers,
Prabhakar

quoted

diff --git a/Documentation/devicetree/bindings/media/i2c/ov772x.txt b/Documentation/devicetree/bindings/media/i2c/ov772x.txt
index 0b3ede5b8e6a..1f4153484717 100644
--- a/Documentation/devicetree/bindings/media/i2c/ov772x.txt
+++ b/Documentation/devicetree/bindings/media/i2c/ov772x.txt

@@ -21,6 +21,22 @@ subnode for its digital output video port, in accordance with the video
 interface bindings defined in Documentation/devicetree/bindings/media/
 video-interfaces.txt.

+Endpoint node required properties for parallel connection are:
+- remote-endpoint: a phandle to the bus receiver's endpoint node.
+- bus-width: shall be set to <8> for 8 bits parallel bus
+            or <10> for 10 bits parallel bus
+- data-shift: shall be set to <2> for 8 bits parallel bus
+             (lines 9:2 are used) or <0> for 10 bits parallel bus
+- hsync-active: active state of the HSYNC signal, 0/1 for LOW/HIGH respectively.
+               (Not required for bus-type equal 6)
+- vsync-active: active state of the VSYNC signal, 0/1 for LOW/HIGH respectively.
+               (Not required for bus-type equal 6)
+- pclk-sample: sample data on rising (1) or falling (0) edge of the pixel clock
+              signal. (Not required for bus-type equal 6)
+- bus-type: data bus type. Possible values are:
+           5 - Parallel
+           6 - Bt.656
+
 Example:

 &i2c0 {
--

2.17.1