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Date: Fri, 17 Jun 2016 16:57:14 +0800 From: Songjun Wu <songjun.wu@...el.com> To: <laurent.pinchart@...asonboard.com>, <nicolas.ferre@...el.com>, <boris.brezillon@...e-electrons.com>, <alexandre.belloni@...e-electrons.com>, <robh@...nel.org> CC: <linux-arm-kernel@...ts.infradead.org>, Songjun Wu <songjun.wu@...el.com>, <devicetree@...r.kernel.org>, Kumar Gala <galak@...eaurora.org>, <linux-kernel@...r.kernel.org>, Ian Campbell <ijc+devicetree@...lion.org.uk>, Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>, Mark Rutland <mark.rutland@....com> Subject: [PATCH v5 2/2] [media] atmel-isc: DT binding for Image Sensor Controller driver DT binding documentation for ISC driver. Signed-off-by: Songjun Wu <songjun.wu@...el.com> --- Changes in v5: - Add clock names. Changes in v4: - Remove the isc clock nodes. Changes in v3: - Remove the 'atmel,sensor-preferred'. - Modify the isc clock node according to the Rob's remarks. Changes in v2: - Remove the unit address of the endpoint. - Add the unit address to the clock node. - Avoid using underscores in node names. - Drop the "0x" in the unit address of the i2c node. - Modify the description of 'atmel,sensor-preferred'. - Add the description for the ISC internal clock. .../devicetree/bindings/media/atmel-isc.txt | 64 ++++++++++++++++++++++ 1 file changed, 64 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..9558a77 --- /dev/null +++ b/Documentation/devicetree/bindings/media/atmel-isc.txt @@ -0,0 +1,64 @@ +Atmel Image Sensor Controller (ISC) +---------------------------------------------- + +Required properties for ISC: +- 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 ISC. +- clocks + List of clock specifiers, corresponding to entries in + the clock-names property; + Please refer to clock-bindings.txt. +- clock-names + Required elements: "hclock". +- #clock-cells + Should be 0. +- clock-output-names + Should contain the name of the clock driving the sensor master clock. +- pinctrl-names, pinctrl-0 + Please refer to pinctrl-bindings.txt. + +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@...08000 { + compatible = "atmel,sama5d2-isc"; + reg = <0xf0008000 0x4000>; + interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>; + clocks = <&isc_clk>, <&iscck>, <&isc_gclk>; + clock-names = "hclock", "iscck", "gck"; + #clock-cells = <0>; + clock-output-names = "isc-mck"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_isc_base &pinctrl_isc_data_8bit &pinctrl_isc_data_9_10 &pinctrl_isc_data_11_12>; + + port { + isc_0: endpoint { + remote-endpoint = <&ov7740_0>; + hsync-active = <1>; + vsync-active = <0>; + pclk-sample = <1>; + }; + }; +}; + +i2c1: i2c@...28000 { + ov7740: camera@21 { + compatible = "ovti,ov7740"; + reg = <0x21>; + clocks = <&isc>; + clock-names = "xvclk"; + assigned-clocks = <&isc>; + assigned-clock-rates = <24000000>; + + port { + ov7740_0: endpoint { + remote-endpoint = <&isc_0>; + }; + }; +}; -- 2.7.4
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