linux-kernel - Re: [PATCH v2 4/5] dt-bindings: drm/bridge Document Cadence MHDP DPI/DP bridge bindings

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Message-ID: <20180725174330.GA31540@rob-hp-laptop>
Date:   Wed, 25 Jul 2018 11:43:30 -0600
From:   Rob Herring <robh@...nel.org>
To:     Damian Kos <dkos@...ence.com>
Cc:     David Airlie <airlied@...ux.ie>,
        Mark Rutland <mark.rutland@....com>,
        Archit Taneja <architt@...eaurora.org>,
        Andrzej Hajda <a.hajda@...sung.com>,
        Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        Sandy Huang <hjc@...k-chips.com>,
        Heiko Stübner <heiko@...ech.de>,
        Quentin Schulz <quentin.schulz@...tlin.com>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, pgaj@...ence.com,
        ltyrala@...ence.com, stelford@...ence.com
Subject: Re: [PATCH v2 4/5] dt-bindings: drm/bridge Document Cadence MHDP
 DPI/DP bridge bindings

On Tue, Jul 24, 2018 at 12:13:35PM +0100, Damian Kos wrote:
> From: Quentin Schulz <quentin.schulz@...tlin.com>
> 
> Signed-off-by: Damian Kos <dkos@...ence.com>
> ---
>  .../bindings/display/bridge/cdns,mhdp.txt     | 43 +++++++++++++++++++
>  1 file changed, 43 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt
> new file mode 100644
> index 000000000000..dc7be7590048
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.txt
> @@ -0,0 +1,43 @@
> +Cadence MHDP bridge
> +==========================
> +
> +The Cadence MHDP bridge is a DPI to DP bridge.
> +
> +Required properties:
> +- compatible: should be "cdns,mhdp8546",
> +- reg: physical base address and length of the controller's registers,
> +- clocks: DP bridge clock, it's used by the IP to know how to translate
> +	a number of clock cycles into a time (which is used to comply
> +	with DP standard timings and delays),
> +
> +Required subnodes:
> +- ports: Ports as described in Documentation/devictree/bindings/graph.txt
> +	Port 0 - input port representing the VGA bridge input
> +	Port 1 - output port representing the VGA bridge output

VGA?

> +
> +Example:
> +
> +	mhdp: dp-bridge@...b000000 {
> +		compatible = "cdns,mhdp8546";
> +		reg = <0xf0 0xfb000000 0x0 0x1000000>;
> +		clocks = <&mhdp_clock>;
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				vga_bridge_input: endpoint {
> +					remote-endpoint = <&xxx_dpi_output>;
> +				};
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +				vga_bridge_output: endpoint {
> +					remote-endpoint = <&xxx_vga_connector_input>;

vga?

> +				};
> +			};
> +		};
> +	};
> -- 
> 2.17.1
> 
> --
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