Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 622b2d10 authored by Jacopo Mondi's avatar Jacopo Mondi Committed by Mauro Carvalho Chehab
Browse files

media: dt-bindings: Add OF properties to ov7670 



Describe newly introduced OF properties for ov7670 image sensor.
The driver supports two standard properties to configure synchronism
signals polarities and one custom property already supported as
platform data options to suppress pixel clock during horizontal
blankings.

Re-phrase child nodes description while at there.

Signed-off-by: default avatarJacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 36e49ffb

Documentation/devicetree/bindings/media/i2c/ov7670.txt

+14 −2
Original line number Diff line number Diff line
@@ -9,14 +9,21 @@ Required Properties: 
- clocks: reference to the xclk input clock.

- clock-names: should be "xclk".



Required Endpoint Properties:

- hsync-active: active state of the HSYNC signal, 0/1 for LOW/HIGH respectively.

- vsync-active: active state of the VSYNC signal, 0/1 for LOW/HIGH respectively.



Optional Properties:

- reset-gpios: reference to the GPIO connected to the resetb pin, if any.

  Active is low.

- powerdown-gpios: reference to the GPIO connected to the pwdn pin, if any.

  Active is high.

- ov7670,pclk-hb-disable: a boolean property to suppress pixel clock output

  signal during horizontal blankings.



The device node must contain one 'port' child node for its digital output

video port, in accordance with the video interface bindings defined in

The device node must contain one 'port' child node with one 'endpoint' child

sub-node for its digital output video port, in accordance with the video

interface bindings defined in:

Documentation/devicetree/bindings/media/video-interfaces.txt.



Example:
@@ -34,8 +41,13 @@ Example: 
			assigned-clocks = <&pck0>;

			assigned-clock-rates = <25000000>;



			ov7670,pclk-hb-disable;



			port {

				ov7670_0: endpoint {

					hsync-active = <0>;

					vsync-active = <0>;



					remote-endpoint = <&isi_0>;

				};

			};