Subject: [V1, 1/2] media: dt-bindings: media: i2c: Add bindings for ov8856

From: <[email-masked]>
Date: Thu, 8 Aug 2019 17:22:14 +0800

From: Dongchun Zhu <[email-masked]>

Add device tree binding documentation for the ov8856 camera sensor.

Signed-off-by: Dongchun Zhu <[email-masked]>
---
 .../devicetree/bindings/media/i2c/ov8856.txt       | 41 ++++++++++++++++++++++
 MAINTAINERS                                        |  1 +
 2 files changed, 42 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/ov8856.txt

diff --git a/Documentation/devicetree/bindings/media/i2c/ov8856.txt b/Documentation/devicetree/bindings/media/i2c/ov8856.txt
new file mode 100644
index 0000000..96b10e0
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ov8856.txt
@@ -0,0 +1,41 @@
+* Omnivision OV8856 MIPI CSI-2 sensor
+
+Required Properties:
+- compatible: shall be "ovti,ov8856"
+- clocks: reference to the xvclk input clock
+- clock-names: shall be "xvclk"
+- avdd-supply: Analog voltage supply, 2.8 volts
+- dovdd-supply: Digital I/O voltage supply, 1.8 volts
+- dvdd-supply: Digital core voltage supply, 1.2 volts
+- reset-gpios: Low active reset gpio
+
+The device node shall contain one 'port' child node with an
+'endpoint' subnode for its digital output video port,
+in accordance with the video interface bindings defined in
+Documentation/devicetree/bindings/media/video-interfaces.txt.
+The endpoint optional property 'data-lanes' shall be "<0 1 3 4>".
+
+Example:
+&i2c7 {
+	ov8856: camera-sensor@10 {
+		compatible = "ovti,ov8856";
+		reg = <0x10>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&clk_24m_cam>;
+
+		clocks = <&cru SCLK_TESTCLKOUT1>;
+		clock-names = "xvclk";
+
+		avdd-supply = <&mt6358_vcama2_reg>;
+		dvdd-supply = <&mt6358_vcamd_reg>;
+		dovdd-supply = <&mt6358_vcamio_reg>;
+		reset-gpios = <&gpio2 3 GPIO_ACTIVE_LOW>;
+
+		port {
+			wcam_out: endpoint {
+				remote-endpoint = <&mipi_in_wcam>;
+				data-lanes = <0 1 3 4>;
+			};
+		};
+	};
+};
diff --git a/MAINTAINERS b/MAINTAINERS
index 783569e..7746c6b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11889,6 +11889,7 @@ L:	[email-masked]
 T:	git git://linuxtv.org/media_tree.git
 S:	Maintained
 F:	drivers/media/i2c/ov8856.c
+F:	Documentation/devicetree/bindings/media/i2c/ov8856.txt
 
 OMNIVISION OV9650 SENSOR DRIVER
 M:	Sakari Ailus <[email-masked]>
-- 
2.9.2

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