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[PATCH v4 6/7] arm64: dts: imx8mp: Add hdmi parallel audio interface node

Shengjiu Wang posted 7 patches 1 month, 3 weeks ago
There is a newer version of this series
[PATCH v4 6/7] arm64: dts: imx8mp: Add hdmi parallel audio interface node
Posted by Shengjiu Wang 1 month, 3 weeks ago 
The HDMI TX Parallel Audio Interface (HTX_PAI) is a bridge between the
Audio Subsystem to the HDMI TX Controller.

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.dtsi | 28 ++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 841d155685ee..00d8474bd1b1 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -2066,7 +2066,7 @@ 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>;
@@ -2092,6 +2092,24 @@ pvi_to_hdmi_tx: endpoint {
 				};
 			};
 
+			hdmi_pai: audio-bridge@32fc4800 {
+				compatible = "fsl,imx8mp-hdmi-pai";
+				reg = <0x32fc4800 0x800>;
+				interrupt-parent = <&irqsteer_hdmi>;
+				interrupts = <14>;
+				clocks = <&clk IMX8MP_CLK_HDMI_APB>;
+				clock-names = "apb";
+				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>;
@@ -2143,6 +2161,14 @@ 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 v4 6/7] arm64: dts: imx8mp: Add hdmi parallel audio interface node
Posted by Frank Li 1 month, 3 weeks ago 
On Fri, Aug 08, 2025 at 04:06:16PM +0800, Shengjiu Wang wrote:
> The HDMI TX Parallel Audio Interface (HTX_PAI) is a bridge between the
> Audio Subsystem to the HDMI TX Controller.
>
> Shrink register map size of hdmi_pvi to avoid overlapped hdmi_pai device.
>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>

Reviewed-by: Frank Li <Frank.Li@nxp.com>

> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 28 ++++++++++++++++++++++-
>  1 file changed, 27 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index 841d155685ee..00d8474bd1b1 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -2066,7 +2066,7 @@ 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>;
> @@ -2092,6 +2092,24 @@ pvi_to_hdmi_tx: endpoint {
>  				};
>  			};
>
> +			hdmi_pai: audio-bridge@32fc4800 {
> +				compatible = "fsl,imx8mp-hdmi-pai";
> +				reg = <0x32fc4800 0x800>;
> +				interrupt-parent = <&irqsteer_hdmi>;
> +				interrupts = <14>;
> +				clocks = <&clk IMX8MP_CLK_HDMI_APB>;
> +				clock-names = "apb";
> +				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>;
> @@ -2143,6 +2161,14 @@ 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 v4 6/7] arm64: dts: imx8mp: Add hdmi parallel audio interface node
Posted by Liu Ying 1 month, 3 weeks ago 
On 08/08/2025, Shengjiu Wang wrote:
> The HDMI TX Parallel Audio Interface (HTX_PAI) is a bridge between the
> Audio Subsystem to the HDMI TX Controller.
> 
> 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.dtsi | 28 ++++++++++++++++++++++-
>  1 file changed, 27 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> index 841d155685ee..00d8474bd1b1 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -2066,7 +2066,7 @@ 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>;
> @@ -2092,6 +2092,24 @@ pvi_to_hdmi_tx: endpoint {
>  				};
>  			};
>  
> +			hdmi_pai: audio-bridge@32fc4800 {
> +				compatible = "fsl,imx8mp-hdmi-pai";
> +				reg = <0x32fc4800 0x800>;
> +				interrupt-parent = <&irqsteer_hdmi>;
> +				interrupts = <14>;
> +				clocks = <&clk IMX8MP_CLK_HDMI_APB>;
> +				clock-names = "apb";
> +				power-domains = <&hdmi_blk_ctrl IMX8MP_HDMIBLK_PD_PAI>;
> +				status = "disabled";
> +
> +				port {
> +

Nit: Drop this blank line.

> +					pai_to_hdmi_tx: endpoint {
> +						remote-endpoint = <&hdmi_tx_from_pai>;
> +					};
> +				};
> +			};
> +
>  			lcdif3: display-controller@32fc6000 {
>  				compatible = "fsl,imx8mp-lcdif";
>  				reg = <0x32fc6000 0x1000>;
> @@ -2143,6 +2161,14 @@ 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>;
> +						};
> +					};
>  				};
>  			};
>  


-- 
Regards,
Liu Ying

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