[V2, 1/2] media: dt-bindings: media: i2c: Add bindings for ov8856

dongchun.zhu
2019-09-10T13:04:45Z

From: Dongchun Zhu <dongchun.zhu@mediatek.com>

This patch adds device tree bindings documentation for the ov8856 CMOS
image sensor.

Signed-off-by: Dongchun Zhu <dongchun.zhu@mediatek.com>
---
.../devicetree/bindings/media/i2c/ov8856.txt | 51 ++++++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 52 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..99c654a
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/ov8856.txt
@@ -0,0 +1,51 @@
+* Omnivision OV8856 MIPI CSI-2 sensor
+
+Required Properties:
+- compatible: Shall be "ovti,ov8856"
+- reg: I2C bus address of the device. Depending on how the sensor is wired,
+ it shall be <0x10>.
+- clocks: Reference to the xvclk input clock.
+- clock-names: Shall be "xvclk".
+- clock-frequency: Frequency of the xclk clock.
+- dovdd-supply: Digital I/O voltage supply, 1.8 volts
+- avdd-supply: Analog voltage supply, 2.8 volts
+- dvdd-supply: Digital core voltage supply, 1.5 volts
+- reset-gpios: High active reset gpio
+
+The device node shall contain one 'port' child node with
+an 'endpoint' subnode. For further reading on port node refer to
+Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Required Properties on endpoint:
+- data-lanes: check ../video-interfaces.txt
+- link-frequencies: check ../video-interfaces.txt
+- remote-endpoint: check ../video-interfaces.txt
+
+Example:
+
+&i2c1 {
+ ov8856: camera-sensor@10 {
+ compatible = "ovti,ov8856";
+ reg = <0x10>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&clk_24m_cam>;
+
+ clocks = <&cru SCLK_TESTCLKOUT1>;
+ clock-names = "xvclk";
+ clock-frequency = <19200000>;
+
+ avdd-supply = <&mt6358_vcama2_reg>;
+ dvdd-supply = <&mt6358_vcamd_reg>;
+ dovdd-supply = <&mt6358_vcamio_reg>;
+ reset-gpios = <&pio 111 GPIO_ACTIVE_HIGH>;
+
+ port {
+ /* MIPI CSI-2 bus endpoint */
+ wcam_out: endpoint {
+ remote-endpoint = <&mipi_in_wcam>;
+ data-lanes = <1 2 3 4>;
+ link-frequencies = /bits/ 64 <360000000 180000000>;
+ };
+ };
+ };
+};
diff --git a/MAINTAINERS b/MAINTAINERS
index 783569e..7746c6b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11889,6 +11889,7 @@ L: linux-media@vger.kernel.org
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 <sakari.ailus@linux.intel.com>
--
2.9.2