linux-kernel - Re: [PATCH 3/5] Documentation/devicetree/bindings: Add b850v3_lvds

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Date:	Thu, 2 Jun 2016 17:57:07 -0500
From:	Rob Herring <robh@...nel.org>
To:	Peter Senna Tschudin <peter.senna@...labora.com>
Cc:	airlied@...ux.ie, akpm@...ux-foundation.org, davem@...emloft.net,
	devicetree@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	enric.balletbo@...labora.com, galak@...eaurora.org,
	gregkh@...uxfoundation.org, heiko@...ech.de,
	ijc+devicetree@...lion.org.uk, jslaby@...e.cz,
	kernel@...gutronix.de, linux-arm-kernel@...ts.infradead.org,
	linux@...linux.org.uk, linux-kernel@...r.kernel.org,
	linux@...ck-us.net, mark.rutland@....com, martin.donnelly@...com,
	martyn.welch@...labora.co.uk, mchehab@....samsung.com,
	pawel.moll@....com, p.zabel@...gutronix.de,
	rmk+kernel@...linux.org.uk, shawnguo@...nel.org, tiwai@...e.com,
	treding@...dia.com, ykk@...k-chips.com
Subject: Re: [PATCH 3/5] Documentation/devicetree/bindings: Add b850v3_lvds_dp

On Mon, May 30, 2016 at 06:39:43PM +0200, Peter Senna Tschudin wrote:
> Devicetree bindings documentation for the GE B850v3 LVDS/DP++
> display bridge.
> 
> Signed-off-by: Peter Senna Tschudin <peter.senna@...labora.com>
> ---
>  .../devicetree/bindings/ge/b850v3_lvds_dp.txt      | 38 ++++++++++++++++++++++
>  1 file changed, 38 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/ge/b850v3_lvds_dp.txt
> 
> diff --git a/Documentation/devicetree/bindings/ge/b850v3_lvds_dp.txt b/Documentation/devicetree/bindings/ge/b850v3_lvds_dp.txt
> new file mode 100644
> index 0000000..32e123a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/ge/b850v3_lvds_dp.txt
> @@ -0,0 +1,38 @@
> +Driver for GE B850v3 LVDS/DP++ display bridge
> +
> +Required properties:
> +  - compatible : should be "ge,b850v3_lvds_dp".
> +  - reg : should contain the address used to ack the interrupts.
> +  - interrupt-parent : should link to the gpio used as interrupt
> +    source on the host.
> +  - interrupts : one interrupt should be described here, as in
> +    <0 IRQ_TYPE_LEVEL_HIGH>.
> +  - edid-reg : should contain the address used to read edid information

This should be known based on the bridge chip you are using.

> +  - port : should describe the vide signal connection between the host
> +    and the bridge.
> +
> +Example:
> +
> +&mux2_i2c2 {
> +	status = "okay";
> +	clock-frequency = <100000>;
> +
> +	b850v3_dp_bridge {

Don't use '_' in node or property names or compatible strings.

> +		compatible = "ge,b850v3_lvds_dp";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		reg = <0x73>;
> +		interrupt-parent = <&gpio2>;
> +		interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
> +
> +		edid-reg = <0x72>;
> +
> +		port@0 {
> +			reg = <0>;
> +			b850v3_dp_bridge_in: endpoint {
> +				remote-endpoint = <&lvds0_out>;
> +			};
> +		};
> +	};
> +};
> -- 
> 2.5.5
>