linux-kernel - [PATCH 2/3] arm64: dts: imx8mp: Add audio XCVR device node

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Date: Tue, 25 Jun 2024 12:56:54 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: lgirdwood@...il.com,
	broonie@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	shengjiu.wang@...il.com,
	linux-sound@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	festevam@...il.com,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/3] arm64: dts: imx8mp: Add audio XCVR device node

XCVR (Audio Transceiver) is a on-chip functional module found
on i.MX8MP. It supports HDMI2.1 eARC, HDMI1.4 ARC and SPDIF.

The reset controller is provided by the audio block control driver.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 26 +++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index f25fc7a8358f..f0297e12ff85 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -1540,6 +1540,31 @@ aud2htx: aud2htx@...b0000 {
 					dma-names = "tx";
 					status = "disabled";
 				};
+
+				xcvr: xcvr@...c0000 {
+					compatible = "fsl,imx8mp-xcvr";
+					reg = <0x30cc0000 0x800>,
+					      <0x30cc0800 0x400>,
+					      <0x30cc0c00 0x080>,
+					      <0x30cc0e00 0x080>;
+					reg-names = "ram", "regs", "rxfifo",
+						    "txfifo";
+					interrupts = /* XCVR IRQ 0 */
+						     <GIC_SPI 128 IRQ_TYPE_LEVEL_HIGH>,
+						     /* XCVR IRQ 1 */
+						     <GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>,
+						     /* XCVR PHY - SPDIF wakeup IRQ */
+						     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_EARC_IPG>,
+						 <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_EARC_PHY>,
+						 <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_SPBA2_ROOT>,
+						 <&audio_blk_ctrl IMX8MP_CLK_AUDIOMIX_AUDPLL_ROOT>;
+					clock-names = "ipg", "phy", "spba", "pll_ipg";
+					dmas = <&sdma2 30 2 0>, <&sdma2 31 2 0>;
+					dma-names = "rx", "tx";
+					resets = <&audio_blk_ctrl 0>;
+					status = "disabled";
+				};
 			};
 
 			sdma3: dma-controller@...00000 {
@@ -1568,6 +1593,7 @@ audio_blk_ctrl: clock-controller@...20000 {
 				compatible = "fsl,imx8mp-audio-blk-ctrl";
 				reg = <0x30e20000 0x10000>;
 				#clock-cells = <1>;
+				#reset-cells = <1>;
 				clocks = <&clk IMX8MP_CLK_AUDIO_ROOT>,
 					 <&clk IMX8MP_CLK_SAI1>,
 					 <&clk IMX8MP_CLK_SAI2>,
-- 
2.34.1