linux-kernel - [PATCH v2 6/6] arm64: dts: imx8mp: Add hdmi parallel audio interface node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250724072248.1517569-7-shengjiu.wang@nxp.com>
Date: Thu, 24 Jul 2025 15:22:48 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: andrzej.hajda@...el.com,
	neil.armstrong@...aro.org,
	rfoss@...nel.org,
	Laurent.pinchart@...asonboard.com,
	jonas@...boo.se,
	jernej.skrabec@...il.com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.com,
	simona@...ll.ch,
	lumag@...nel.org,
	dianders@...omium.org,
	cristian.ciocaltea@...labora.com,
	luca.ceresoli@...tlin.com,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	victor.liu@....com,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	festevam@...il.com,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	p.zabel@...gutronix.de,
	devicetree@...r.kernel.org,
	l.stach@...gutronix.de,
	shengjiu.wang@...il.com,
	perex@...ex.cz,
	tiwai@...e.com,
	linux-sound@...r.kernel.org
Subject: [PATCH v2 6/6] 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@....com>
---
 arch/arm64/boot/dts/freescale/imx8mp-evk.dts |  4 +++
 arch/arm64/boot/dts/freescale/imx8mp.dtsi    | 28 +++++++++++++++++++-
 2 files changed, 31 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..a0b00cbcb680 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@...c2000 {
 
 			hdmi_pvi: display-bridge@...c4000 {
 				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 +2089,24 @@ pvi_to_hdmi_tx: endpoint {
 				};
 			};
 
+			hdmi_pai: audio-bridge@...c4800 {
+				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@...c6000 {
 				compatible = "fsl,imx8mp-lcdif";
 				reg = <0x32fc6000 0x1000>;
@@ -2140,6 +2158,14 @@ 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