[PATCH 2/2] [media] atmel-isc: DT binding for Image Sensor Controller driver

[Songjun Wu]

DT binding documentation for ISC driver.

Signed-off-by: Songjun Wu <songjun.wu at atmel.com>
---

 .../devicetree/bindings/media/atmel-isc.txt        | 84 ++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/atmel-isc.txt

diff --git a/Documentation/devicetree/bindings/media/atmel-isc.txt b/Documentation/devicetree/bindings/media/atmel-isc.txt
new file mode 100644
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+Atmel Image Sensor Controller (ISC)
+----------------------------------------------
+
+Required properties:
+- compatible
+	Must be "atmel,sama5d2-isc"
+- reg
+	Physical base address and length of the registers set for the device;
+- interrupts
+  Should contain IRQ line for the ISI;
+- clocks
+	List of clock specifiers, corresponding to entries in
+	the clock-names property;
+	Please refer to clock-bindings.txt.
+- clock-names
+	Required elements: "hclock", "ispck".
+- pinctrl-names, pinctrl-0
+	Please refer to pinctrl-bindings.txt.
+- clk_in_isc
+	ISC internal clock node, it includes the isc_ispck and isc_mck.
+	Please refer to clock-bindings.txt.
+- atmel,sensor-preferred
+	Sensor is preferred to process image (1-preferred, 0-not).
+	The default value is 1.
+
+ISC supports a single port node with parallel bus. It should contain one
+'port' child node with child 'endpoint' node. Please refer to the bindings
+defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
+
+Example:
+isc: isc at f0008000 {
+	compatible = "atmel,sama5d2-isc";
+	reg = <0xf0008000 0x4000>;
+	interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>;
+	clocks = <&isc_clk>, <&isc_ispck>;
+	clock-names = "hclock", "ispck";
+	atmel,sensor-preferred = <1>;
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		isc_0: endpoint at 0 {
+			remote-endpoint = <&ov7740_0>;
+			hsync-active = <1>;
+			vsync-active = <0>;
+			pclk-sample = <1>;
+		};
+	};
+
+	clk_in_isc {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		isc_ispck: isc_ispck {
+			#clock-cells = <0>;
+			reg = <0>;
+			clocks = <&isc_clk>, <&iscck>;
+		};
+
+		isc_mck: isc_mck {
+			#clock-cells = <0>;
+			reg = <1>;
+			clocks = <&isc_clk>, <&iscck>, <&isc_gclk>;
+		};
+	};
+};
+
+i2c1: i2c at fc028000 {
+	ov7740: camera at 0x21 {
+	compatible = "ovti,ov7740";
+	reg = <0x21>;
+
+	clocks = <&isc_mck>;
+	clock-names = "xvclk";
+	assigned-clocks = <&isc_mck>;
+	assigned-clock-rates = <24000000>;
+
+	port {
+		ov7740_0: endpoint {
+			remote-endpoint = <&isc_0>;
+		};
+	};
+};
-- 
2.7.4