linux-kernel - [PATCH 4/5] arm64: dts: imx8mp: Add fsl,dsp-ctrl property for dsp

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Message-ID: <20241120135859.3133984-5-daniel.baluta@nxp.com>
Date: Wed, 20 Nov 2024 15:58:57 +0200
From: Daniel Baluta <daniel.baluta@....com>
To: shawnguo@...nel.org,
	s.hauer@...gutronix.de,
	kernel@...gutronix.de
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	festevam@...il.com,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	frank.li@....com,
	aisheng.dong@....com,
	daniel.baluta@...il.com,
	laurentiu.mihalcea@....com,
	shengjiu.wang@....com,
	iuliana.prodan@....com,
	Daniel Baluta <daniel.baluta@....com>
Subject: [PATCH 4/5] arm64: dts: imx8mp: Add fsl,dsp-ctrl property for dsp

Audio block control contains a set of registers some of them used for
DSP configuration.

Drivers (rproc, SOF) are using fsl,dsp-ctrl property to access those registers
in order to control the operations of the DSP (e.g for start, reset,
etc).

Signed-off-by: Daniel Baluta <daniel.baluta@....com>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 41ff40ab5da2..fa4ff75af12d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -1616,7 +1616,7 @@ sdma2: dma-controller@...10000 {
 			};
 
 			audio_blk_ctrl: clock-controller@...20000 {
-				compatible = "fsl,imx8mp-audio-blk-ctrl";
+				compatible = "fsl,imx8mp-audio-blk-ctrl", "syscon";
 				reg = <0x30e20000 0x10000>;
 				#clock-cells = <1>;
 				#reset-cells = <1>;
@@ -2433,6 +2433,7 @@ dsp: dsp@...e8000 {
 			mboxes = <&mu2 0 0>, <&mu2 1 0>, <&mu2 3 0>;
 			firmware-name = "imx/dsp/hifi4.bin";
 			memory-region = <&dsp_reserved>;
+			fsl,dsp-ctrl = <&audio_blk_ctrl>;
 			status = "disabled";
 		};
 	};
-- 
2.43.0