linux-kernel - [PATCH v4 5/6] arm64: dts: imx8mp: Add fsl,dsp-ctrl property for dsp

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: <20250212085222.107102-6-daniel.baluta@nxp.com>
Date: Wed, 12 Feb 2025 10:52:21 +0200
From: Daniel Baluta <daniel.baluta@....com>
To: shawnguo@...nel.org,
	robh@...nel.org
Cc: s.hauer@...gutronix.de,
	kernel@...gutronix.de,
	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,
	a.fatoum@...gutronix.de,
	Daniel Baluta <daniel.baluta@....com>,
	Peng Fan <peng.fan@....com>
Subject: [PATCH v4 5/6] arm64: dts: imx8mp: Add fsl,dsp-ctrl property for dsp

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

Drivers (rproc, SOF) are using fsl,dsp-ctrl property in order to control
the DSP, particularly for Run/Stall bit.

Note that audio block control doesn't offer the functionality to reset
thte DSP. Reset is done via DAP interface.

Reviewed-by: Iuliana Prodan <iuliana.prodan@....com>
Reviewed-by: Peng Fan <peng.fan@....com>
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 14cfbd228b45..46b33fbb9bd1 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -1609,7 +1609,7 @@ 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>;
@@ -2425,6 +2425,7 @@ 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