[v7,3/7] dt-bindings: display: bridge: Add Cadence MHDP850

  Add bindings for Cadence MHDP8501 DisplayPort/HDMI bridge..

Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
---
 .../display/bridge/cdns,mhdp8501.yaml         | 105 ++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml
  

Am Montag, 17. Juli 2023, 10:03:49 CEST schrieb Sandor Yu:
> ********************
> Achtung externe E-Mail: Öffnen Sie Anhänge und Links nur, wenn Sie wissen,
> dass diese aus einer sicheren Quelle stammen und sicher sind. Leiten Sie
> die E-Mail im Zweifelsfall zur Prüfung an den IT-Helpdesk weiter.
> Attention external email: Open attachments and links only if you know that
> they are from a secure source and are safe. In doubt forward the email to
> the IT-Helpdesk to check it. ********************
> 
> Add bindings for Cadence MHDP8501 DisplayPort/HDMI bridge..
> 
> Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
> ---
>  .../display/bridge/cdns,mhdp8501.yaml         | 105 ++++++++++++++++++
>  1 file changed, 105 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 000000000000..b983ee765f54
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml
> @@ -0,0 +1,105 @@
> +# 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@nxp.com>
> +
> +description:
> +  Cadence MHDP8501 DisplayPort/HDMI interface.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - cdns,mhdp8501
> +      - fsl,imx8mq-mhdp8501
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +    description: MHDP8501 DP/HDMI APB clock.
> +
> +  phys:
> +    maxItems: 1
> +    description:
> +      phandle to the DisplayPort or HDMI PHY
> +
> +  interrupts:
> +    items:
> +      - description: Hotplug cable plugin.
> +      - description: Hotplug cable plugout.
> +
> +  interrupt-names:
> +    items:
> +      - const: plug_in
> +      - const: plug_out
> +
> +  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
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/imx8mq-clock.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    mhdp_dp: dp-bridge@32c00000 {

I'm not sure, but I would name this node just 'bridge', because it can be 
either DP or HDMI depending on the connector. But DT folks will know better 
than me.

Best regards,
Alexander

> +        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 = <&dp_phy>;
> +
> +        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>;
> +                };
> +            };
> +        };
> +    };
  

Hi Alexander,

Thanks for your comments,

>
> Am Montag, 17. Juli 2023, 10:03:49 CEST schrieb Sandor Yu:
> > ********************
> > Achtung externe E-Mail: Öffnen Sie Anhänge und Links nur, wenn Sie
> > wissen, dass diese aus einer sicheren Quelle stammen und sicher sind.
> > Leiten Sie die E-Mail im Zweifelsfall zur Prüfung an den IT-Helpdesk weiter.
> > Attention external email: Open attachments and links only if you know
> > that they are from a secure source and are safe. In doubt forward the
> > email to the IT-Helpdesk to check it. ********************
> >
> > Add bindings for Cadence MHDP8501 DisplayPort/HDMI bridge..
> >
> > Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
> > ---
> >  .../display/bridge/cdns,mhdp8501.yaml         | 105
> ++++++++++++++++++
> >  1 file changed, 105 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 000000000000..b983ee765f54
> > --- /dev/null
> > +++
> b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.y
> > +++ aml
> > @@ -0,0 +1,105 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2
> > +---
> > +$id:
> > +http://devi/
> >
> +cetree.org%2Fschemas%2Fdisplay%2Fbridge%2Fcdns%2Cmhdp8501.yaml%
> 23&dat
> >
> +a=05%7C01%7CSandor.yu%40nxp.com%7C603a90f3f3c34d32a1e708db86a
> 8f868%7C
> >
> +686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63825183250590544
> 2%7CUnkno
> >
> +wn%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1
> haWwi
> >
> +LCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=JnbufeZplo%2B6JGW4HaK
> %2BLyC0MESK
> > +GsV%2FtjfeXCXqK4U%3D&reserved=0
> > +$schema:
> > +http://devi/
> >
> +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C01%7CSandor.
> yu%40n
> >
> +xp.com%7C603a90f3f3c34d32a1e708db86a8f868%7C686ea1d3bc2b4c6fa9
> 2cd99c5
> >
> +c301635%7C0%7C0%7C638251832505905442%7CUnknown%7CTWFpbGZs
> b3d8eyJWIjoi
> >
> +MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3
> 000%7C%
> >
> +7C%7C&sdata=rdOyjVz4gGnToVC40Rcfp%2Fk925yC%2F6xNwGbBAnOtcDQ
> %3D&reserv
> > +ed=0
> > +
> > +title: Cadence MHDP8501 DP/HDMI bridge
> > +
> > +maintainers:
> > +  - Sandor Yu <Sandor.yu@nxp.com>
> > +
> > +description:
> > +  Cadence MHDP8501 DisplayPort/HDMI interface.
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - cdns,mhdp8501
> > +      - fsl,imx8mq-mhdp8501
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 1
> > +    description: MHDP8501 DP/HDMI APB clock.
> > +
> > +  phys:
> > +    maxItems: 1
> > +    description:
> > +      phandle to the DisplayPort or HDMI PHY
> > +
> > +  interrupts:
> > +    items:
> > +      - description: Hotplug cable plugin.
> > +      - description: Hotplug cable plugout.
> > +
> > +  interrupt-names:
> > +    items:
> > +      - const: plug_in
> > +      - const: plug_out
> > +
> > +  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
> > +  - ports
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/clock/imx8mq-clock.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +    mhdp_dp: dp-bridge@32c00000 {
>
> I'm not sure, but I would name this node just 'bridge', because it can be either
> DP or HDMI depending on the connector. But DT folks will know better than
> me.
This name should update too after DP and HDMI driver combined.
I will change to "mhdp: mhdp-bridge@32c00000" in the next version.
B.R
Sandor
>
> Best regards,
> Alexander
>
> > +        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 = <&dp_phy>;
> > +
> > +        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>;
> > +                };
> > +            };
> > +        };
> > +    };
>
>
> --
> TQ-Systems GmbH | Mühlstraße 2, Gut Delling | 82229 Seefeld, Germany
> Amtsgericht München, HRB 105018
> Geschäftsführer: Detlef Schneider, Rüdiger Stahl, Stefan Schneider
> http://www.tq/
> -group.com%2F&data=05%7C01%7CSandor.yu%40nxp.com%7C603a90f3f3c3
> 4d32a1e708db86a8f868%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C
> 0%7C638251832505905442%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4w
> LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C
> %7C%7C&sdata=m1JbdOzu8sx6h6fP2Q8OpyLAmvpguKFUj6ddCSB3OCs%3D&
> reserved=0
>
  

On Tue, Jul 18, 2023 at 01:58:09AM +0000, Sandor Yu wrote:
> Hi Alexander,
> 
> Thanks for your comments,
> 
> >
> > Am Montag, 17. Juli 2023, 10:03:49 CEST schrieb Sandor Yu:
> > > ********************
> > > Achtung externe E-Mail: Öffnen Sie Anhänge und Links nur, wenn Sie
> > > wissen, dass diese aus einer sicheren Quelle stammen und sicher sind.
> > > Leiten Sie die E-Mail im Zweifelsfall zur Prüfung an den IT-Helpdesk weiter.
> > > Attention external email: Open attachments and links only if you know
> > > that they are from a secure source and are safe. In doubt forward the
> > > email to the IT-Helpdesk to check it. ********************
> > >
> > > Add bindings for Cadence MHDP8501 DisplayPort/HDMI bridge..
> > >
> > > Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
> > > ---
> > >  .../display/bridge/cdns,mhdp8501.yaml         | 105
> > ++++++++++++++++++
> > >  1 file changed, 105 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 000000000000..b983ee765f54
> > > --- /dev/null
> > > +++
> > b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.y
> > > +++ aml
> > > @@ -0,0 +1,105 @@
> > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2
> > > +---
> > > +$id:
> > > +http://devi/
> > >
> > +cetree.org%2Fschemas%2Fdisplay%2Fbridge%2Fcdns%2Cmhdp8501.yaml%
> > 23&dat
> > >
> > +a=05%7C01%7CSandor.yu%40nxp.com%7C603a90f3f3c34d32a1e708db86a
> > 8f868%7C
> > >
> > +686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63825183250590544
> > 2%7CUnkno
> > >
> > +wn%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1
> > haWwi
> > >
> > +LCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=JnbufeZplo%2B6JGW4HaK
> > %2BLyC0MESK
> > > +GsV%2FtjfeXCXqK4U%3D&reserved=0
> > > +$schema:
> > > +http://devi/
> > >
> > +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C01%7CSandor.
> > yu%40n
> > >
> > +xp.com%7C603a90f3f3c34d32a1e708db86a8f868%7C686ea1d3bc2b4c6fa9
> > 2cd99c5
> > >
> > +c301635%7C0%7C0%7C638251832505905442%7CUnknown%7CTWFpbGZs
> > b3d8eyJWIjoi
> > >
> > +MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3
> > 000%7C%
> > >
> > +7C%7C&sdata=rdOyjVz4gGnToVC40Rcfp%2Fk925yC%2F6xNwGbBAnOtcDQ
> > %3D&reserv
> > > +ed=0
> > > +
> > > +title: Cadence MHDP8501 DP/HDMI bridge
> > > +
> > > +maintainers:
> > > +  - Sandor Yu <Sandor.yu@nxp.com>
> > > +
> > > +description:
> > > +  Cadence MHDP8501 DisplayPort/HDMI interface.
> > > +
> > > +properties:
> > > +  compatible:
> > > +    enum:
> > > +      - cdns,mhdp8501
> > > +      - fsl,imx8mq-mhdp8501
> > > +
> > > +  reg:
> > > +    maxItems: 1
> > > +
> > > +  clocks:
> > > +    maxItems: 1
> > > +    description: MHDP8501 DP/HDMI APB clock.
> > > +
> > > +  phys:
> > > +    maxItems: 1
> > > +    description:
> > > +      phandle to the DisplayPort or HDMI PHY
> > > +
> > > +  interrupts:
> > > +    items:
> > > +      - description: Hotplug cable plugin.
> > > +      - description: Hotplug cable plugout.
> > > +
> > > +  interrupt-names:
> > > +    items:
> > > +      - const: plug_in
> > > +      - const: plug_out
> > > +
> > > +  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
> > > +  - ports
> > > +
> > > +additionalProperties: false
> > > +
> > > +examples:
> > > +  - |
> > > +    #include <dt-bindings/clock/imx8mq-clock.h>
> > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > +
> > > +    mhdp_dp: dp-bridge@32c00000 {
> >
> > I'm not sure, but I would name this node just 'bridge', because it can be either
> > DP or HDMI depending on the connector. But DT folks will know better than
> > me.
> This name should update too after DP and HDMI driver combined.

Has nothing to do with a driver.

> I will change to "mhdp: mhdp-bridge@32c00000" in the next version.

What is 'mhdp'? Doesn't sound generic. Use just 'bridge' or 
'display-bridge'. We don't have a standard name defined in the DT spec 
(there's 'hdmi', but nothing that's protocol independent).

Rob
  

On Mon, Jul 17, 2023 at 04:03:49PM +0800, Sandor Yu wrote:
> Add bindings for Cadence MHDP8501 DisplayPort/HDMI bridge..
> 
> Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
> ---
>  .../display/bridge/cdns,mhdp8501.yaml         | 105 ++++++++++++++++++
>  1 file changed, 105 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 000000000000..b983ee765f54
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yaml
> @@ -0,0 +1,105 @@
> +# 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@nxp.com>
> +
> +description:
> +  Cadence MHDP8501 DisplayPort/HDMI interface.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - cdns,mhdp8501

Drop this.

> +      - fsl,imx8mq-mhdp8501
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +    description: MHDP8501 DP/HDMI APB clock.
> +
> +  phys:
> +    maxItems: 1
> +    description:
> +      phandle to the DisplayPort or HDMI PHY
> +
> +  interrupts:
> +    items:
> +      - description: Hotplug cable plugin.
> +      - description: Hotplug cable plugout.
> +
> +  interrupt-names:
> +    items:
> +      - const: plug_in
> +      - const: plug_out
> +
> +  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
> +  - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/imx8mq-clock.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> +    mhdp_dp: dp-bridge@32c00000 {
> +        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 = <&dp_phy>;
> +
> +        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
>
  

Hi Rob, 

Thanks for your comments,

> > Add bindings for Cadence MHDP8501 DisplayPort/HDMI bridge..
> >
> > Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
> > ---
> >  .../display/bridge/cdns,mhdp8501.yaml         | 105
> ++++++++++++++++++
> >  1 file changed, 105 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 000000000000..b983ee765f54
> > --- /dev/null
> > +++
> b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.y
> > +++ aml
> > @@ -0,0 +1,105 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2
> > +---
> > +$id:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fschemas%2Fdisplay%2Fbridge%2Fcdns%2Cmhdp8501.yaml%
> 23&dat
> >
> +a=05%7C01%7CSandor.yu%40nxp.com%7C7c33f38de4804df82ed108db87d
> eeeef%7C
> >
> +686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63825316378283684
> 1%7CUnkno
> >
> +wn%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1
> haWwi
> >
> +LCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=M0fImRvAyayYwQLSQsJVo
> OQF59Y47KI5
> > +XNnVzmuTHOc%3D&reserved=0
> > +$schema:
> > +https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdevi
> >
> +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C01%7CSandor.
> yu%40n
> >
> +xp.com%7C7c33f38de4804df82ed108db87deeeef%7C686ea1d3bc2b4c6fa9
> 2cd99c5
> >
> +c301635%7C0%7C0%7C638253163782836841%7CUnknown%7CTWFpbGZs
> b3d8eyJWIjoi
> >
> +MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3
> 000%7C%
> >
> +7C%7C&sdata=iCjpKSNsRnQYhRlXz7%2FR46uot%2B3aYbFz1ecfy63dYaw%3
> D&reserv
> > +ed=0
> > +
> > +title: Cadence MHDP8501 DP/HDMI bridge
> > +
> > +maintainers:
> > +  - Sandor Yu <Sandor.yu@nxp.com>
> > +
> > +description:
> > +  Cadence MHDP8501 DisplayPort/HDMI interface.
> > +
> > +properties:
> > +  compatible:
> > +    enum:
> > +      - cdns,mhdp8501
> 
> Drop this.
OK, " - cdns,mhdp8501" will be dropped.
B.R
Sandor
> 
> > +      - fsl,imx8mq-mhdp8501
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 1
> > +    description: MHDP8501 DP/HDMI APB clock.
> > +
> > +  phys:
> > +    maxItems: 1
> > +    description:
> > +      phandle to the DisplayPort or HDMI PHY
> > +
> > +  interrupts:
> > +    items:
> > +      - description: Hotplug cable plugin.
> > +      - description: Hotplug cable plugout.
> > +
> > +  interrupt-names:
> > +    items:
> > +      - const: plug_in
> > +      - const: plug_out
> > +
> > +  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
> > +  - ports
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/clock/imx8mq-clock.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +    mhdp_dp: dp-bridge@32c00000 {
> > +        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 = <&dp_phy>;
> > +
> > +        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
> >
  

Hi Rob,

Thanks for your comment.

> > Hi Alexander,
> >
> > Thanks for your comments,
> >
> > >
> > > Am Montag, 17. Juli 2023, 10:03:49 CEST schrieb Sandor Yu:
> > > > ********************
> > > > Achtung externe E-Mail: Öffnen Sie Anhänge und Links nur, wenn Sie
> > > > wissen, dass diese aus einer sicheren Quelle stammen und sicher sind.
> > > > Leiten Sie die E-Mail im Zweifelsfall zur Prüfung an den IT-Helpdesk
> weiter.
> > > > Attention external email: Open attachments and links only if you
> > > > know that they are from a secure source and are safe. In doubt
> > > > forward the email to the IT-Helpdesk to check it.
> > > > ********************
> > > >
> > > > Add bindings for Cadence MHDP8501 DisplayPort/HDMI bridge..
> > > >
> > > > Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
> > > > ---
> > > >  .../display/bridge/cdns,mhdp8501.yaml         | 105
> > > ++++++++++++++++++
> > > >  1 file changed, 105 insertions(+)  create mode 100644
> > > >
> Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.yam
> > > > l
> > > >
> > > > diff --git
> > > > a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.y
> > > > aml
> > > > b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.y
> > > > aml new file mode 100644 index 000000000000..b983ee765f54
> > > > --- /dev/null
> > > > +++
> > > b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp8501.y
> > > > +++ aml
> > > > @@ -0,0 +1,105 @@
> > > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2
> > > > +---
> > > > +$id:
> > > > +http://devi/
> > > >
> > >
> +cetree.org%2Fschemas%2Fdisplay%2Fbridge%2Fcdns%2Cmhdp8501.yaml%
> > > 23&dat
> > > >
> > >
> +a=05%7C01%7CSandor.yu%40nxp.com%7C603a90f3f3c34d32a1e708db86a
> > > 8f868%7C
> > > >
> > >
> +686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63825183250590544
> > > 2%7CUnkno
> > > >
> > >
> +wn%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1
> > > haWwi
> > > >
> > >
> +LCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=JnbufeZplo%2B6JGW4HaK
> > > %2BLyC0MESK
> > > > +GsV%2FtjfeXCXqK4U%3D&reserved=0
> > > > +$schema:
> > > > +http://devi/
> > > >
> > >
> +cetree.org%2Fmeta-schemas%2Fcore.yaml%23&data=05%7C01%7CSandor.
> > > yu%40n
> > > >
> > >
> +xp.com%7C603a90f3f3c34d32a1e708db86a8f868%7C686ea1d3bc2b4c6fa9
> > > 2cd99c5
> > > >
> > >
> +c301635%7C0%7C0%7C638251832505905442%7CUnknown%7CTWFpbGZs
> > > b3d8eyJWIjoi
> > > >
> > >
> +MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3
> > > 000%7C%
> > > >
> > >
> +7C%7C&sdata=rdOyjVz4gGnToVC40Rcfp%2Fk925yC%2F6xNwGbBAnOtcDQ
> > > %3D&reserv
> > > > +ed=0
> > > > +
> > > > +title: Cadence MHDP8501 DP/HDMI bridge
> > > > +
> > > > +maintainers:
> > > > +  - Sandor Yu <Sandor.yu@nxp.com>
> > > > +
> > > > +description:
> > > > +  Cadence MHDP8501 DisplayPort/HDMI interface.
> > > > +
> > > > +properties:
> > > > +  compatible:
> > > > +    enum:
> > > > +      - cdns,mhdp8501
> > > > +      - fsl,imx8mq-mhdp8501
> > > > +
> > > > +  reg:
> > > > +    maxItems: 1
> > > > +
> > > > +  clocks:
> > > > +    maxItems: 1
> > > > +    description: MHDP8501 DP/HDMI APB clock.
> > > > +
> > > > +  phys:
> > > > +    maxItems: 1
> > > > +    description:
> > > > +      phandle to the DisplayPort or HDMI PHY
> > > > +
> > > > +  interrupts:
> > > > +    items:
> > > > +      - description: Hotplug cable plugin.
> > > > +      - description: Hotplug cable plugout.
> > > > +
> > > > +  interrupt-names:
> > > > +    items:
> > > > +      - const: plug_in
> > > > +      - const: plug_out
> > > > +
> > > > +  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
> > > > +  - ports
> > > > +
> > > > +additionalProperties: false
> > > > +
> > > > +examples:
> > > > +  - |
> > > > +    #include <dt-bindings/clock/imx8mq-clock.h>
> > > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > > +
> > > > +    mhdp_dp: dp-bridge@32c00000 {
> > >
> > > I'm not sure, but I would name this node just 'bridge', because it
> > > can be either DP or HDMI depending on the connector. But DT folks
> > > will know better than me.
> > This name should update too after DP and HDMI driver combined.
> 
> Has nothing to do with a driver.
> 
> > I will change to "mhdp: mhdp-bridge@32c00000" in the next version.
> 
> What is 'mhdp'? Doesn't sound generic. Use just 'bridge' or 'display-bridge'.
> We don't have a standard name defined in the DT spec (there's 'hdmi', but
> nothing that's protocol independent).

OK, thanks, will change to "mhdp: display-bridge@32c00000".
B.R
Sandor
> 
> Rob