DT binding documentation for ISC driver. Signed-off-by: Songjun Wu <songjun.wu@xxxxxxxxx> --- .../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 index 0000000..449f05f --- /dev/null +++ b/Documentation/devicetree/bindings/media/atmel-isc.txt @@ -0,0 +1,84 @@ +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@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@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@fc028000 { + ov7740: camera@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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html