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arm64: dts: imx8mp-ab2: Enable MU2 for DSP communication

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Enable the MU2 (Message Unit 2) node on the i.MX8MP Audio Board v2.
MU2 is required for inter-processor communication between the
application CPU and the HiFi4 DSP, allowing DSP firmware to exchange
control and status messages with the Linux host.

Without this change, the DSP driver cannot establish the message
channel and DSP audio processing is non-functional.

Fixes: bf68c18150 ("arm64: dts: imx8mp-ab2: add support for NXP i.MX8MP audio board (version 2)")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Shengjiu Wang 2026-06-25 13:47:09 +08:00 committed by Frank Li
parent 3385e2f771
commit b1b6c1c4d3
1 changed files with 4 additions and 0 deletions
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4
arch/arm64/boot/dts/freescale/imx8mp-ab2.dts
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@ -775,6 +775,10 @@ &micfil {
status = "okay";
};
&mu2 {
status = "okay";
};
&pwm1 {
pinctrl-0 = <&pinctrl_pwm1>;
pinctrl-names = "default";