[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <22f3pkf63uphnx3opld6ibkhptbtxqoguqgu6iswb6w4hzkxxd@pwbdwjdodcnc>
Date: Thu, 31 Oct 2024 21:55:45 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Sandor Yu <Sandor.yu@....com>
Cc: andrzej.hajda@...el.com, neil.armstrong@...aro.org,
Laurent.pinchart@...asonboard.com, jonas@...boo.se, jernej.skrabec@...il.com, airlied@...il.com,
daniel@...ll.ch, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
shawnguo@...nel.org, s.hauer@...gutronix.de, festevam@...il.com, vkoul@...nel.org,
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, mripard@...nel.org,
kernel@...gutronix.de, linux-imx@....com, oliver.brown@....com,
alexander.stein@...tq-group.com, sam@...nborg.org
Subject: Re: [PATCH v18 3/8] dt-bindings: display: bridge: Add Cadence
MHDP8501
On Tue, Oct 29, 2024 at 02:02:11PM +0800, Sandor Yu wrote:
> Add bindings for Cadence MHDP8501 DisplayPort/HDMI bridge.
>
> Signed-off-by: Sandor Yu <Sandor.yu@....com>
> ---
> v17->v18:
> - remove lane-mapping and replace it with data-lanes
> - remove r-b tag as property changed.
>
> v16->v17:
> - Add lane-mapping property
>
> v9->v16:
> *No change
>
> .../display/bridge/cdns,mhdp8501.yaml | 112 ++++++++++++++++++
> 1 file changed, 112 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml
> new file mode 100644
> index 0000000000000..e4b900ecf1ac9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml
> @@ -0,0 +1,112 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/bridge/cdns,mhdp8501.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Cadence MHDP8501 DP/HDMI bridge
> +
> +maintainers:
> + - Sandor Yu <Sandor.yu@....com>
> +
> +description:
> + Cadence MHDP8501 DisplayPort/HDMI interface.
> +
> +properties:
> + compatible:
> + enum:
> + - fsl,imx8mq-mhdp8501
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> + description: MHDP8501 DP/HDMI APB clock.
> +
> + phys:
> + maxItems: 1
> + description:
> + phandle to the DP/HDMI PHY
> +
> + interrupts:
> + items:
> + - description: Hotplug cable plugin.
> + - description: Hotplug cable plugout.
> +
> + interrupt-names:
> + items:
> + - const: plug_in
> + - const: plug_out
> +
> + data-lanes:
> + $ref: /schemas/media/video-interfaces.yaml#/properties/data-lanes
> + minItems: 4
> + maxItems: 4
> + description: Lane reordering for HDMI or DisplayPort interface.
So, HDMI or DP port? I don't think the format is actually the same, so
it is either-or.
> +
> + ports:
> + $ref: /schemas/graph.yaml#/properties/ports
> +
> + properties:
> + port@0:
> + $ref: /schemas/graph.yaml#/properties/port
> + description:
> + Input port from display controller output.
> + port@1:
> + $ref: /schemas/graph.yaml#/properties/port
> + description:
> + Output port to DisplayPort or HDMI connector.
> +
> + required:
> + - port@0
> + - port@1
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - interrupts
> + - interrupt-names
> + - phys
> + - data-lanes
> + - ports
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/imx8mq-clock.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> + mhdp: display-bridge@...00000 {
> + compatible = "fsl,imx8mq-mhdp8501";
> + reg = <0x32c00000 0x100000>;
> + interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-names = "plug_in", "plug_out";
> + clocks = <&clk IMX8MQ_CLK_DISP_APB_ROOT>;
> + phys = <&mdhp_phy>;
> + data-lanes = <1 2 3 4>;
0 1 2 3
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> +
> + mhdp_in: endpoint {
> + remote-endpoint = <&dcss_out>;
> + };
> + };
> +
> + port@1 {
> + reg = <1>;
> +
> + mhdp_out: endpoint {
> + remote-endpoint = <&dp_connector>;
> + };
> + };
> + };
> + };
> --
> 2.34.1
>
--
With best wishes
Dmitry
Powered by blists - more mailing lists