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| -rw-r--r-- | Documentation/devicetree/bindings/media/atmel-isi.txt | 91 |
1 files changed, 53 insertions, 38 deletions
diff --git a/Documentation/devicetree/bindings/media/atmel-isi.txt b/Documentation/devicetree/bindings/media/atmel-isi.txt index 251f008f220c..332513a151cc 100644 --- a/Documentation/devicetree/bindings/media/atmel-isi.txt +++ b/Documentation/devicetree/bindings/media/atmel-isi.txt @@ -1,51 +1,66 @@ -Atmel Image Sensor Interface (ISI) SoC Camera Subsystem ----------------------------------------------- - -Required properties: -- compatible: must be "atmel,at91sam9g45-isi" -- 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; -- clock-names: must contain "isi_clk", which is the isi peripherial clock. - -ISI supports a single port node with parallel bus. It should contain one +Atmel Image Sensor Interface (ISI) +---------------------------------- + +Required properties for ISI: +- compatible: must be "atmel,at91sam9g45-isi". +- 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: "isi_clk". +- pinctrl-names, pinctrl-0: please refer to pinctrl-bindings.txt. + +ISI supports a single port node with parallel bus. It shall contain one 'port' child node with child 'endpoint' node. Please refer to the bindings defined in Documentation/devicetree/bindings/media/video-interfaces.txt. -Example: - isi: isi@f0034000 { - compatible = "atmel,at91sam9g45-isi"; - reg = <0xf0034000 0x4000>; - interrupts = <37 IRQ_TYPE_LEVEL_HIGH 5>; - - clocks = <&isi_clk>; - clock-names = "isi_clk"; +Endpoint node properties +------------------------ - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_isi>; +- bus-width: <8> or <10> (mandatory) +- hsync-active (default: active high) +- vsync-active (default: active high) +- pclk-sample (default: sample on falling edge) +- remote-endpoint: A phandle to the bus receiver's endpoint node (mandatory). - port { - #address-cells = <1>; - #size-cells = <0>; +Example: - isi_0: endpoint { - remote-endpoint = <&ov2640_0>; - bus-width = <8>; - }; +isi: isi@f0034000 { + compatible = "atmel,at91sam9g45-isi"; + reg = <0xf0034000 0x4000>; + interrupts = <37 IRQ_TYPE_LEVEL_HIGH 5>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_isi_data_0_7>; + clocks = <&isi_clk>; + clock-names = "isi_clk"; + port { + isi_0: endpoint { + remote-endpoint = <&ov2640_0>; + bus-width = <8>; + vsync-active = <1>; + hsync-active = <1>; }; }; +}; - i2c1: i2c@f0018000 { - ov2640: camera@0x30 { - compatible = "ovti,ov2640"; - reg = <0x30>; +i2c1: i2c@f0018000 { + ov2640: camera@30 { + compatible = "ovti,ov2640"; + reg = <0x30>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pck0_as_isi_mck &pinctrl_sensor_power &pinctrl_sensor_reset>; + resetb-gpios = <&pioE 11 GPIO_ACTIVE_LOW>; + pwdn-gpios = <&pioE 13 GPIO_ACTIVE_HIGH>; + clocks = <&pck0>; + clock-names = "xvclk"; + assigned-clocks = <&pck0>; + assigned-clock-rates = <25000000>; - port { - ov2640_0: endpoint { - remote-endpoint = <&isi_0>; - bus-width = <8>; - }; + port { + ov2640_0: endpoint { + remote-endpoint = <&isi_0>; + bus-width = <8>; }; }; }; +}; |