linux-kernel - [PATCH v4 2/6] arm64: dts: imx8-ss-audio: configure dsp node for rproc usage

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Message-Id: <20241021155221.112073-3-laurentiumihalcea111@gmail.com>
Date: Mon, 21 Oct 2024 11:52:17 -0400
From: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Daniel Baluta <daniel.baluta@....com>,
	Shengjiu Wang <shengjiu.wang@....com>,
	Iuliana Prodan <iuliana.prodan@....com>,
	Tushar Khandelwal <Tushar.Khandelwal@....com>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Frank Li <Frank.li@....com>
Cc: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v4 2/6] arm64: dts: imx8-ss-audio: configure dsp node for rproc usage

From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>

The 'dsp' node is currently configured for running an audio firmware.
Since the firmware requires that some audio-related IPs be disabled in
Linux, this will clash with the configurations from the imx8 board DTs
(i.e: imx8qm-mek, imx8qxp-mek, etc...), thus making the dsp unusable
(since the firmware won't function properly).

To avoid this issue, configure the 'dsp' node for rproc. This way, users
will be able to use the dsp alongside the board-level audio configuration
as long as the firmware doesn't need the audio IPs.

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
---
 .../boot/dts/freescale/imx8-ss-audio.dtsi     | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8-ss-audio.dtsi b/arch/arm64/boot/dts/freescale/imx8-ss-audio.dtsi
index ff5df0fed9e9..a60ebb718789 100644
--- a/arch/arm64/boot/dts/freescale/imx8-ss-audio.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8-ss-audio.dtsi
@@ -431,22 +431,19 @@ dsp_ram_lpcg: clock-controller@...90000 {
 	};
 
 	dsp: dsp@...e8000 {
-		compatible = "fsl,imx8qxp-dsp";
+		compatible = "fsl,imx8qxp-hifi4";
 		reg = <0x596e8000 0x88000>;
 		clocks = <&dsp_lpcg IMX_LPCG_CLK_5>,
 			 <&dsp_ram_lpcg IMX_LPCG_CLK_4>,
 			 <&dsp_lpcg IMX_LPCG_CLK_7>;
 		clock-names = "ipg", "ocram", "core";
-		power-domains = <&pd IMX_SC_R_MU_13A>,
-			<&pd IMX_SC_R_MU_13B>,
-			<&pd IMX_SC_R_DSP>,
-			<&pd IMX_SC_R_DSP_RAM>;
-		mbox-names = "txdb0", "txdb1",
-			"rxdb0", "rxdb1";
-		mboxes = <&lsio_mu13 2 0>,
-			<&lsio_mu13 2 1>,
-			<&lsio_mu13 3 0>,
-			<&lsio_mu13 3 1>;
+		power-domains = <&pd IMX_SC_R_MU_13B>,
+				<&pd IMX_SC_R_MU_2A>;
+		mbox-names = "tx", "rx", "rxdb";
+		mboxes = <&lsio_mu13 0 0>,
+			 <&lsio_mu13 1 0>,
+			 <&lsio_mu13 3 0>;
+		firmware-name = "imx/dsp/hifi4.bin";
 		status = "disabled";
 	};
 
-- 
2.34.1