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Message-ID: <fabde8a2-1fab-45bd-8250-898254e0ba8d@linaro.org>
Date: Mon, 5 Feb 2024 12:17:57 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Adam Ford <aford173@...il.com>, linux-arm-kernel@...ts.infradead.org
Cc: marex@...x.de, alexander.stein@...tq-group.com,
 frieder.schrempf@...tron.de, Lucas Stach <l.stach@...gutronix.de>,
 Andrzej Hajda <andrzej.hajda@...el.com>, Robert Foss <rfoss@...nel.org>,
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, NXP Linux Team <linux-imx@....com>,
 Philipp Zabel <p.zabel@...gutronix.de>, Vinod Koul <vkoul@...nel.org>,
 Kishon Vijay Abraham I <kishon@...nel.org>,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
 Liu Ying <victor.liu@....com>, Ulf Hansson <ulf.hansson@...aro.org>,
 dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
 linux-pm@...r.kernel.org
Subject: Re: [PATCH V8 09/12] dt-bindings: display: imx: add binding for
 i.MX8MP HDMI TX

On 03/02/2024 17:52, Adam Ford wrote:
> From: Lucas Stach <l.stach@...gutronix.de>
> 
> The HDMI TX controller on the i.MX8MP SoC is a Synopsys designware IP
> core with a little bit of SoC integration around it.
> 
> Signed-off-by: Lucas Stach <l.stach@...gutronix.de>
> Signed-off-by: Adam Ford <aford173@...il.com>
> 
> ---
> V3:  Change name and location to better idenfity as a bridge and
>       HDMI 2.0a transmitter
> 
>       Fix typos and feedback from Rob and added ports.
> ---
>   .../display/bridge/fsl,imx8mp-hdmi-tx.yaml    | 102 ++++++++++++++++++
>   1 file changed, 102 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml b/Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml
> new file mode 100644
> index 000000000000..3791c9f4ebab
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/fsl,imx8mp-hdmi-tx.yaml
> @@ -0,0 +1,102 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/fsl,imx8mp-hdmi-tx.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale i.MX8MP DWC HDMI TX Encoder
> +
> +maintainers:
> +  - Lucas Stach <l.stach@...gutronix.de>
> +
> +description:
> +  The i.MX8MP HDMI transmitter is a Synopsys DesignWare
> +  HDMI 2.0a TX controller IP.
> +
> +allOf:
> +  - $ref: /schemas/display/bridge/synopsys,dw-hdmi.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - fsl,imx8mp-hdmi-tx
> +
> +  reg-io-width:
> +    const: 1
> +
> +  clocks:
> +    maxItems: 4
> +
> +  clock-names:
> +    items:
> +      - const: iahb
> +      - const: isfr
> +      - const: cec
> +      - const: pix
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  ports:
> +    $ref: /schemas/graph.yaml#/properties/ports
> +
> +    properties:
> +      port@0:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description: Parallel RGB input port
> +
> +      port@1:
> +        $ref: /schemas/graph.yaml#/properties/port
> +        description: HDMI output port
> +
> +    required:
> +      - port@0
> +      - port@1
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +  - interrupts
> +  - power-domains
> +  - ports
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/imx8mp-clock.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/power/imx8mp-power.h>
> +
> +    hdmi@...d8000 {
> +        compatible = "fsl,imx8mp-hdmi-tx";
> +        reg = <0x32fd8000 0x7eff>;
> +        interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
> +        clocks = <&clk IMX8MP_CLK_HDMI_APB>,
> +                 <&clk IMX8MP_CLK_HDMI_REF_266M>,
> +                 <&clk IMX8MP_CLK_32K>,
> +                 <&hdmi_tx_phy>;
> +        clock-names = "iahb", "isfr", "cec", "pix";
> +        power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_HDMI_TX>;
> +        reg-io-width = <1>;
> +        ports {
> +           #address-cells = <1>;
> +           #size-cells = <0>;
> +           port@0 {
> +             reg = <0>;
> +
> +             hdmi_tx_from_pvi: endpoint {
> +               remote-endpoint = <&pvi_to_hdmi_tx>;
> +             };
> +          };
> +
> +          port@1 {
> +            reg = <1>;
> +              hdmi_tx_out: endpoint {
> +                remote-endpoint = <&hdmi0_con>;
> +              };
> +          };
> +        };
> +    };

I'll apply patches 9 & 10 once this one is properly reviewed

Thanks,
Neil

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