Subject: Re: [RFC PATCH V2 3/4] dt-bindings: mt8183: Add sensor interface dt-bindings

From: Rob Herring <[email-masked]>
Date: Tue, 14 May 2019 15:22:23 -0500

On Sun, May 12, 2019 at 02:00:04PM +0800, Louis Kuo wrote:
> This patch adds the DT binding documentation for the sensor interface
> module in Mediatek SoCs.
> 
> Signed-off-by: Louis Kuo <[email-masked]>
> ---
>  .../bindings/media/mediatek-seninf.txt        | 52 +++++++++++++++++++
>  1 file changed, 52 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek-seninf.txt
> 
> diff --git a/Documentation/devicetree/bindings/media/mediatek-seninf.txt b/Documentation/devicetree/bindings/media/mediatek-seninf.txt
> new file mode 100644
> index 000000000000..5c84a777acbd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek-seninf.txt
> @@ -0,0 +1,52 @@
> +* Mediatek seninf MIPI-CSI2 host driver

Bindings are for h/w blocks, not drivers...

How does this relate to the other series for Mediatek MIPI CSI2?

> +
> +Seninf MIPI-CSI2 host driver is a HW camera interface controller. It support a widely adopted,
> +simple, high-speed protocol primarily intended for point-to-point image and video
> +transmission between cameras and host devices.
> +
> +Required properties:
> +  - compatible: "mediatek,mt8183-seninf"
> +  - reg: Must contain an entry for each entry in reg-names.
> +  - reg-names: Must include the following entries:
> +    "base_reg": seninf registers base
> +    "rx_reg": Rx analog registers base

'_reg' part is redundant.

> +  - interrupts: interrupt number to the cpu.
> +  - clocks : clock name from clock manager
> +  - clock-names: must be CLK_CAM_SENINF and CLK_TOP_MUX_SENINF.
> +    It is the clocks of seninf
> +  - port : port for camera sensor

port is not a property

> +  - port reg : must be '0' for camera 0, '1' for camera 1
> +  - endpoint : config mipi-csi2 port setting for each camera

endpoint is not a property

> +  - data-lanes : the number of the data lane
> +
> +Example:
> +    seninf: seninf@1a040000 {
> +       compatible = "mediatek,mt8183_seninf";
> +		reg = <0 0x1a040000 0 0x8000>,
> +		      <0 0x11C80000 0 0x6000>;
> +		reg-names = "base_reg", "ana_reg";
> +		interrupts = <GIC_SPI 251 IRQ_TYPE_LEVEL_LOW>;
> +		power-domains = <&scpsys MT8183_POWER_DOMAIN_CAM>;
> +	    clocks =

The indentation is all wrong.

> +			<&camsys CLK_CAM_SENINF>, <&topckgen CLK_TOP_MUX_SENINF>;
> +		clock-names =
> +			"CLK_CAM_SENINF", "CLK_TOP_MUX_SENINF";
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			port@0 {
> +				reg = <0>;
> +				mipi_in_cam0: endpoint@0 {
> +					reg = <0>;
> +					data-lanes = <1 3>;
> +				};
> +			};
> +			port@1 {
> +				reg = <1>;
> +				mipi_in_cam1: endpoint@0 {
> +					reg = <1>;
> +					data-lanes = <1 3>;
> +				};
> +			};
> +		};
> +	}
> -- 
> 2.18.0
> 

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