From: Shengjiu Wang <shengjiu.wang@nxp.com>
Date: Tue, 23 Sep 2025 05:30:00 +0000 (+0800)
Subject: arm64: dts: imx8mp: Add hdmi parallel audio interface node
X-Git-Tag: v6.19-rc1~100^2~20^2~66
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4677a3f84ce18dcd00d25982ccac627791c321dd;p=thirdparty%2Flinux.git

arm64: dts: imx8mp: Add hdmi parallel audio interface node

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>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 2898654cda2b6..354a8616cb528 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -2107,7 +2107,7 @@
 
 			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>;
@@ -2133,6 +2133,23 @@
 				};
 			};
 
+			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>;
@@ -2184,6 +2201,14 @@
 						reg = <1>;
 						/* Point endpoint to the HDMI connector */
 					};
+
+					port@2 {
+						reg = <2>;
+
+						hdmi_tx_from_pai: endpoint {
+							remote-endpoint = <&pai_to_hdmi_tx>;
+						};
+					};
 				};
 			};