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    SubjectRe: [PATCH v4 24/36] [media] add Omnivision OV5640 sensor driver
    On Wed, Feb 15, 2017 at 06:19:26PM -0800, Steve Longerbeam wrote:
    > This driver is based on ov5640_mipi.c from Freescale imx_3.10.17_1.0.0_beta
    > branch, modified heavily to bring forward to latest interfaces and code
    > cleanup.
    >
    > Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
    > ---
    > .../devicetree/bindings/media/i2c/ov5640.txt | 43 +

    Please split to separate commit.

    > drivers/media/i2c/Kconfig | 7 +
    > drivers/media/i2c/Makefile | 1 +
    > drivers/media/i2c/ov5640.c | 2109 ++++++++++++++++++++
    > 4 files changed, 2160 insertions(+)
    > create mode 100644 Documentation/devicetree/bindings/media/i2c/ov5640.txt
    > create mode 100644 drivers/media/i2c/ov5640.c
    >
    > diff --git a/Documentation/devicetree/bindings/media/i2c/ov5640.txt b/Documentation/devicetree/bindings/media/i2c/ov5640.txt
    > new file mode 100644
    > index 0000000..4607bbe
    > --- /dev/null
    > +++ b/Documentation/devicetree/bindings/media/i2c/ov5640.txt
    > @@ -0,0 +1,43 @@
    > +* Omnivision OV5640 MIPI CSI-2 sensor
    > +
    > +Required Properties:
    > +- compatible: should be "ovti,ov5640"
    > +- clocks: reference to the xclk input clock.
    > +- clock-names: should be "xclk".
    > +- DOVDD-supply: Digital I/O voltage supply, 1.8 volts
    > +- AVDD-supply: Analog voltage supply, 2.8 volts
    > +- DVDD-supply: Digital core voltage supply, 1.5 volts
    > +
    > +Optional Properties:
    > +- reset-gpios: reference to the GPIO connected to the reset pin, if any.
    > +- pwdn-gpios: reference to the GPIO connected to the pwdn pin, if any.

    Use powerdown-gpios here as that is a somewhat standard name.

    Both need to state what is the active state.

    > +
    > +The device node must contain one 'port' child node for its digital output
    > +video port, in accordance with the video interface bindings defined in
    > +Documentation/devicetree/bindings/media/video-interfaces.txt.
    > +
    > +Example:
    > +
    > +&i2c1 {
    > + ov5640: camera@3c {
    > + compatible = "ovti,ov5640";
    > + pinctrl-names = "default";
    > + pinctrl-0 = <&pinctrl_ov5640>;
    > + reg = <0x3c>;
    > + clocks = <&clks IMX6QDL_CLK_CKO>;
    > + clock-names = "xclk";
    > + DOVDD-supply = <&vgen4_reg>; /* 1.8v */
    > + AVDD-supply = <&vgen3_reg>; /* 2.8v */
    > + DVDD-supply = <&vgen2_reg>; /* 1.5v */
    > + pwdn-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
    > + reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
    > +
    > + port {
    > + ov5640_to_mipi_csi2: endpoint {
    > + remote-endpoint = <&mipi_csi2_from_ov5640>;
    > + clock-lanes = <0>;
    > + data-lanes = <1 2>;
    > + };
    > + };
    > + };
    > +};

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