Re: [PATCH v1 01/10] dt-bindings: media: Add Renesas CEU bindings

Kieran Bingham
2017-11-15T11:33:04Z

Hi Jacopo,

A couple of minor language fixups inline.

On 15/11/17 10:55, Jacopo Mondi wrote:
> Add bindings documentation for Renesas Capture Engine Unit (CEU).
>
> Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> ---
> .../devicetree/bindings/media/renesas,ceu.txt | 87 ++++++++++++++++++++++
> 1 file changed, 87 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/media/renesas,ceu.txt
>
> diff --git a/Documentation/devicetree/bindings/media/renesas,ceu.txt b/Documentation/devicetree/bindings/media/renesas,ceu.txt
> new file mode 100644
> index 0000000..a88e9cb
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/renesas,ceu.txt
> @@ -0,0 +1,87 @@
> +Renesas Capture Engine Unit (CEU)
> +----------------------------------------------
> +
> +The Capture Engine Unit is the image capture interface found on Renesas
> +RZ chip series and on SH Mobile ones.
> +
> +The interface supports a single parallel input with up 8/16bits data bus width.

s/with up 8/16bits/with either 8 or 16 bits/ ?

> +
> +Required properties:
> +- compatible
> + Must be "renesas,renesas-ceu".
> +- reg
> + Physical address base and size.
> +- interrupts
> + The interrupt line number.
> +- pinctrl-names, pinctrl-0
> + phandle of pin controller sub-node configuring pins for CEU operations.
> +
> +CEU supports a single parallel input and should contain a single 'port' subnode
> +with a single 'endpoint'. Optional endpoint properties applicable to parallel
> +input bus are described in "video-interfaces.txt".
> +
> +Example:
> +
> +The example describes the connection between the Capture Engine Unit and a

s/and a/and an/

> +OV7670 image sensor sitting on bus i2c1 with an on-board 24Mhz clock.
> +
> +ceu: ceu@e8210000 {
> + reg = <0xe8210000 0x209c>;
> + compatible = "renesas,renesas-ceu";
> + interrupts = <GIC_SPI 332 IRQ_TYPE_LEVEL_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&vio_pins>;
> +
> + status = "okay";
> +
> + port {
> + ceu_in: endpoint {
> + remote-endpoint = <&ov7670_out>;
> +
> + bus-width = <8>;
> + hsync-active = <1>;
> + vsync-active = <1>;
> + pclk-sample = <1>;
> + data-active = <1>;
> + };
> + };
> +};
> +
> +i2c1: i2c@fcfee400 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&i2c1_pins>;
> +
> + status = "okay";
> + clock-frequency = <100000>;
> +
> + ov7670: camera@21 {
> + compatible = "ovti,ov7670";
> + reg = <0x21>;
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&vio_pins>;
> +
> + reset-gpios = <&port3 11 GPIO_ACTIVE_LOW>;
> + powerdown-gpios = <&port3 12 GPIO_ACTIVE_HIGH>;
> +
> + clocks = <&xclk>;
> + clock-names = "xclk";
> +
> + xclk: fixed_clk {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <24000000>;
> + };
> +
> + port {
> + ov7670_out: endpoint {
> + remote-endpoint = <&ceu_in>;
> +
> + bus-width = <8>;
> + hsync-active = <1>;
> + vsync-active = <1>;
> + pclk-sample = <1>;
> + data-active = <1>;
> + };
> + };
> + };
>