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charset="utf-8" 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 --- 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/dt= s/freescale/imx8mp.dtsi index b42e6430123f..c8f9347d602c 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi @@ -1609,7 +1609,7 @@ sdma2: dma-controller@30e10000 { }; =20 audio_blk_ctrl: clock-controller@30e20000 { - compatible =3D "fsl,imx8mp-audio-blk-ctrl"; + compatible =3D "fsl,imx8mp-audio-blk-ctrl", "syscon"; reg =3D <0x30e20000 0x10000>; #clock-cells =3D <1>; #reset-cells =3D <1>; @@ -2426,6 +2426,7 @@ dsp: dsp@3b6e8000 { mboxes =3D <&mu2 0 0>, <&mu2 1 0>, <&mu2 3 0>; firmware-name =3D "imx/dsp/hifi4.bin"; memory-region =3D <&dsp_reserved>; + fsl,dsp-ctrl =3D <&audio_blk_ctrl>; status =3D "disabled"; }; }; --=20 2.25.1