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[media] atmel-isc: DT binding for Image Sensor Controller driver
DT binding documentation for ISC driver.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Songjun Wu <songjun.wu@microchip.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
authored by
Songjun Wu
and committed by
Mauro Carvalho Chehab
3f75dc94
10626744
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Documentation/devicetree/bindings/media/atmel-isc.txt
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Documentation/devicetree/bindings/media/atmel-isc.txt
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Atmel Image Sensor Controller (ISC)
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----------------------------------------------
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Required properties for ISC:
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- compatible
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Must be "atmel,sama5d2-isc".
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- reg
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Physical base address and length of the registers set for the device.
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- interrupts
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Should contain IRQ line for the ISC.
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- clocks
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List of clock specifiers, corresponding to entries in
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the clock-names property;
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Please refer to clock-bindings.txt.
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- clock-names
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Required elements: "hclock", "iscck", "gck".
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- #clock-cells
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Should be 0.
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- clock-output-names
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Should be "isc-mck".
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- pinctrl-names, pinctrl-0
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Please refer to pinctrl-bindings.txt.
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ISC supports a single port node with parallel bus. It should contain one
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'port' child node with child 'endpoint' node. Please refer to the bindings
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defined in Documentation/devicetree/bindings/media/video-interfaces.txt.
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Example:
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isc: isc@f0008000 {
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compatible = "atmel,sama5d2-isc";
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reg = <0xf0008000 0x4000>;
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interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>;
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clocks = <&isc_clk>, <&iscck>, <&isc_gclk>;
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clock-names = "hclock", "iscck", "gck";
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#clock-cells = <0>;
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clock-output-names = "isc-mck";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_isc_base &pinctrl_isc_data_8bit &pinctrl_isc_data_9_10 &pinctrl_isc_data_11_12>;
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port {
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isc_0: endpoint {
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remote-endpoint = <&ov7740_0>;
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hsync-active = <1>;
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vsync-active = <0>;
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pclk-sample = <1>;
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};
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};
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};
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i2c1: i2c@fc028000 {
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ov7740: camera@21 {
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compatible = "ovti,ov7740";
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reg = <0x21>;
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clocks = <&isc>;
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clock-names = "xvclk";
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assigned-clocks = <&isc>;
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assigned-clock-rates = <24000000>;
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port {
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ov7740_0: endpoint {
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remote-endpoint = <&isc_0>;
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};
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};
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};
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};