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[PATCH 4/4] arm64: dts: imx8mp: Add hdmi parallel audio interface node

Shengjiu Wang posted 4 patches 2 months, 2 weeks ago
There is a newer version of this series
[PATCH 4/4] arm64: dts: imx8mp: Add hdmi parallel audio interface node
Posted by Shengjiu Wang 2 months, 2 weeks ago 
The HDMI TX Parallel Audio Interface (HTX_PAI) is a digital module that
acts as the bridge between the Audio Subsystem to the HDMI TX Controller.

Correct the register map of hdmi_pvi, which is overlapped with the
hdmi_pai device.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts |  4 +++
 arch/arm64/boot/dts/freescale/imx8mp.dtsi    | 26 +++++++++++++++++++-
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index c0cc5611048e..cc9351a5bd65 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -442,6 +442,10 @@ &flexcan2 {
 	status = "disabled";/* can2 pin conflict with pdm */
 };
 
+&hdmi_pai {
+	status = "okay";
+};
+
 &hdmi_pvi {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index bb24dba7338e..6e5a41f46309 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -2063,7 +2063,7 @@ irqsteer_hdmi: interrupt-controller@32fc2000 {
 
 			hdmi_pvi: display-bridge@32fc4000 {
 				compatible = "fsl,imx8mp-hdmi-pvi";
-				reg = <0x32fc4000 0x1000>;
+				reg = <0x32fc4000 0x800>;
 				interrupt-parent = <&irqsteer_hdmi>;
 				interrupts = <12>;
 				power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PVI>;
@@ -2089,6 +2089,22 @@ pvi_to_hdmi_tx: endpoint {
 				};
 			};
 
+			hdmi_pai: hdmi@32fc4800 {
+				compatible = "fsl,imx8mp-hdmi-pai";
+				reg = <0x32fc4800 0x800>;
+				interrupt-parent = <&irqsteer_hdmi>;
+				interrupts = <14>;
+				power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PAI>;
+				status = "disabled";
+
+				port {
+
+					pai_to_hdmi_tx: endpoint {
+						remote-endpoint = <&hdmi_tx_from_pai>;
+					};
+				};
+			};
+
 			lcdif3: display-controller@32fc6000 {
 				compatible = "fsl,imx8mp-lcdif";
 				reg = <0x32fc6000 0x1000>;
@@ -2140,6 +2156,14 @@ port@1 {
 						reg = <1>;
 						/* Point endpoint to the HDMI connector */
 					};
+
+					port@2 {
+						reg = <2>;
+
+						hdmi_tx_from_pai: endpoint {
+							remote-endpoint = <&pai_to_hdmi_tx>;
+						};
+					};
 				};
 			};
 
-- 
2.34.1
Re: [PATCH 4/4] arm64: dts: imx8mp: Add hdmi parallel audio interface node
Posted by Frank Li 2 months, 2 weeks ago 
On Fri, Jul 18, 2025 at 06:11:50PM +0800, Shengjiu Wang wrote:
> The HDMI TX Parallel Audio Interface (HTX_PAI) is a digital module that
> acts as the bridge between the Audio Subsystem to the HDMI TX Controller.

Remove " a digital module that acts as the" is more straightforward.

>
> Correct the register map of hdmi_pvi, which is overlapped with the
> hdmi_pai device.

Shrink register map size of hdmi_pvi to avoid overlapped hdmi_pai device.

>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mp-evk.dts |  4 +++
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi    | 26 +++++++++++++++++++-
>  2 files changed, 29 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> index c0cc5611048e..cc9351a5bd65 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> @@ -442,6 +442,10 @@ &flexcan2 {
>  	status = "disabled";/* can2 pin conflict with pdm */
>  };
>
> +&hdmi_pai {
> +	status = "okay";
> +};
> +
>  &hdmi_pvi {
>  	status = "okay";
>  };
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index bb24dba7338e..6e5a41f46309 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -2063,7 +2063,7 @@ irqsteer_hdmi: interrupt-controller@32fc2000 {
>
>  			hdmi_pvi: display-bridge@32fc4000 {
>  				compatible = "fsl,imx8mp-hdmi-pvi";
> -				reg = <0x32fc4000 0x1000>;
> +				reg = <0x32fc4000 0x800>;
>  				interrupt-parent = <&irqsteer_hdmi>;
>  				interrupts = <12>;
>  				power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PVI>;
> @@ -2089,6 +2089,22 @@ pvi_to_hdmi_tx: endpoint {
>  				};
>  			};
>
> +			hdmi_pai: hdmi@32fc4800 {

commit message it is bridge device, maybe audio-bridge is good node name

Frank
> +				compatible = "fsl,imx8mp-hdmi-pai";
> +				reg = <0x32fc4800 0x800>;
> +				interrupt-parent = <&irqsteer_hdmi>;
> +				interrupts = <14>;
> +				power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PAI>;
> +				status = "disabled";
> +
> +				port {
> +
> +					pai_to_hdmi_tx: endpoint {
> +						remote-endpoint = <&hdmi_tx_from_pai>;
> +					};
> +				};
> +			};
> +
>  			lcdif3: display-controller@32fc6000 {
>  				compatible = "fsl,imx8mp-lcdif";
>  				reg = <0x32fc6000 0x1000>;
> @@ -2140,6 +2156,14 @@ port@1 {
>  						reg = <1>;
>  						/* Point endpoint to the HDMI connector */
>  					};
> +
> +					port@2 {
> +						reg = <2>;
> +
> +						hdmi_tx_from_pai: endpoint {
> +							remote-endpoint = <&pai_to_hdmi_tx>;
> +						};
> +					};
>  				};
>  			};
>
> --
> 2.34.1
>
Re: [PATCH 4/4] arm64: dts: imx8mp: Add hdmi parallel audio interface node
Posted by Shengjiu Wang 2 months, 2 weeks ago 
On Sat, Jul 19, 2025 at 12:30 AM Frank Li <Frank.li@nxp.com> wrote:
>
> On Fri, Jul 18, 2025 at 06:11:50PM +0800, Shengjiu Wang wrote:
> > The HDMI TX Parallel Audio Interface (HTX_PAI) is a digital module that
> > acts as the bridge between the Audio Subsystem to the HDMI TX Controller.
>
> Remove " a digital module that acts as the" is more straightforward.
>
> >
> > Correct the register map of hdmi_pvi, which is overlapped with the
> > hdmi_pai device.
>
> Shrink register map size of hdmi_pvi to avoid overlapped hdmi_pai device.

Ok, will update them in next version.
>
> >
> > Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
> > ---
> >  arch/arm64/boot/dts/freescale/imx8mp-evk.dts |  4 +++
> >  arch/arm64/boot/dts/freescale/imx8mp.dtsi    | 26 +++++++++++++++++++-
> >  2 files changed, 29 insertions(+), 1 deletion(-)
> >
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > index c0cc5611048e..cc9351a5bd65 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
> > @@ -442,6 +442,10 @@ &flexcan2 {
> >       status = "disabled";/* can2 pin conflict with pdm */
> >  };
> >
> > +&hdmi_pai {
> > +     status = "okay";
> > +};
> > +
> >  &hdmi_pvi {
> >       status = "okay";
> >  };
> > diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > index bb24dba7338e..6e5a41f46309 100644
> > --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> > @@ -2063,7 +2063,7 @@ irqsteer_hdmi: interrupt-controller@32fc2000 {
> >
> >                       hdmi_pvi: display-bridge@32fc4000 {
> >                               compatible = "fsl,imx8mp-hdmi-pvi";
> > -                             reg = <0x32fc4000 0x1000>;
> > +                             reg = <0x32fc4000 0x800>;
> >                               interrupt-parent = <&irqsteer_hdmi>;
> >                               interrupts = <12>;
> >                               power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PVI>;
> > @@ -2089,6 +2089,22 @@ pvi_to_hdmi_tx: endpoint {
> >                               };
> >                       };
> >
> > +                     hdmi_pai: hdmi@32fc4800 {
>
> commit message it is bridge device, maybe audio-bridge is good node name

Ok, will use audio-bridge.

best regards
Shengjiu Wang
>
> Frank
> > +                             compatible = "fsl,imx8mp-hdmi-pai";
> > +                             reg = <0x32fc4800 0x800>;
> > +                             interrupt-parent = <&irqsteer_hdmi>;
> > +                             interrupts = <14>;
> > +                             power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PAI>;
> > +                             status = "disabled";
> > +
> > +                             port {
> > +
> > +                                     pai_to_hdmi_tx: endpoint {
> > +                                             remote-endpoint = <&hdmi_tx_from_pai>;
> > +                                     };
> > +                             };
> > +                     };
> > +
> >                       lcdif3: display-controller@32fc6000 {
> >                               compatible = "fsl,imx8mp-lcdif";
> >                               reg = <0x32fc6000 0x1000>;
> > @@ -2140,6 +2156,14 @@ port@1 {
> >                                               reg = <1>;
> >                                               /* Point endpoint to the HDMI connector */
> >                                       };
> > +
> > +                                     port@2 {
> > +                                             reg = <2>;
> > +
> > +                                             hdmi_tx_from_pai: endpoint {
> > +                                                     remote-endpoint = <&pai_to_hdmi_tx>;
> > +                                             };
> > +                                     };
> >                               };
> >                       };
> >
> > --
> > 2.34.1
> >

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