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Message-ID: <20221116162544.GA193163-robh@kernel.org>
Date:   Wed, 16 Nov 2022 10:25:44 -0600
From:   Rob Herring <robh@...nel.org>
To:     Sandor Yu <Sandor.yu@....com>
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org, andrzej.hajda@...el.com,
        neil.armstrong@...aro.org, robert.foss@...aro.org,
        Laurent.pinchart@...asonboard.com, jonas@...boo.se,
        jernej.skrabec@...il.com, vkoul@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, linux-imx@....com,
        tzimmermann@...e.de, lyude@...hat.com, javierm@...hat.com,
        ville.syrjala@...ux.intel.com, sam@...nborg.org,
        jani.nikula@...el.com, maxime@...no.tech,
        penguin-kernel@...ove.sakura.ne.jp, oliver.brown@....com
Subject: Re: [PATCH v3 02/10] dt-bindings: display: bridge: Add MHDP HDMI for
 i.MX8MQ

On Tue, Nov 08, 2022 at 09:00:05PM +0800, Sandor Yu wrote:
> Add bindings for i.MX8MQ MHDP HDMI.
> 
> Signed-off-by: Sandor Yu <Sandor.yu@....com>
> ---
>  .../display/bridge/cdns,mhdp-imx8mq-hdmi.yaml | 59 +++++++++++++++++++
>  1 file changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp-imx8mq-hdmi.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp-imx8mq-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp-imx8mq-hdmi.yaml
> new file mode 100644
> index 000000000000..8c0afef157aa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp-imx8mq-hdmi.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/cdns,mhdp-imx8mq-hdmi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Cadence MHDP HDMI bridge
> +
> +maintainers:
> +  - Sandor Yu <Sandor.yu@....com>
> +
> +description:
> +  The Cadence MHDP TX HDMI interface.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - cdns,mhdp-imx8mq-hdmi
> +
> +  reg:
> +    maxItems: 1
> +
> +  phys:
> +    maxItems: 1
> +
> +  interrupts:
> +    items:
> +      - description: Hotplug detect interrupter for cable plugin event.
> +      - description: Hotplug detect interrupter for cable plugout event.
> +
> +  interrupt-names:
> +    items:
> +      - const: plug_in
> +      - const: plug_out
> +
> +  port:
> +    $ref: /schemas/graph.yaml#/properties/port
> +    description:
> +      A port node pointing to the output port of a display controller.

You also need an output port to an HDMI connector node.

> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    mhdp_hdmi: hdmi-bridge@...00000 {
> +        compatible = "cdns,mhdp-imx8mq-hdmi";
> +        reg = <0x32c00000 0x100000>;
> +        interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
> +                <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
> +        interrupt-names = "plug_in", "plug_out";
> +        phys = <&hdmi_phy>;
> +
> +        port {
> +            mhdp_in: endpoint {
> +                remote-endpoint = <&dcss_out>;
> +            };
> +        };
> +    };
> -- 
> 2.34.1
> 
> 

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