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

[Liu Ying]

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 at 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 at 32fc2000 {
>  
>  			hdmi_pvi: display-bridge at 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 at 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 at 32fc6000 {
>  				compatible = "fsl,imx8mp-lcdif";
>  				reg = <0x32fc6000 0x1000>;
> @@ -2143,6 +2161,14 @@ port at 1 {
>  						reg = <1>;
>  						/* Point endpoint to the HDMI connector */
>  					};
> +
> +					port at 2 {
> +						reg = <2>;
> +
> +						hdmi_tx_from_pai: endpoint {
> +							remote-endpoint = <&pai_to_hdmi_tx>;
> +						};
> +					};
>  				};
>  			};
>  


-- 
Regards,
Liu Ying