[PATCH v3 5/5] arm64: dts: imx8mp: make 'dsp' node depend on 'aips5'

From: Laurentiu Mihalcea
Date: Mon Mar 24 2025 - 12:32:42 EST


From: Laurentiu Mihalcea <laurentiu.mihalcea@xxxxxxx>

The DSP needs to access peripherals on AIPSTZ5 (to communicate with
the AP using AUDIOMIX MU, for instance). To do so, the security-related
registers of the bridge have to be configured before the DSP is started.
Enforce a dependency on AIPSTZ5 by adding the 'access-controllers'
property to the 'dsp' node.

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@xxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8mp.dtsi | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index ce9f6da1e257..db14e85023a0 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -2425,6 +2425,7 @@ dsp: dsp@3b6e8000 {
mboxes = <&mu2 2 0>, <&mu2 2 1>,
<&mu2 3 0>, <&mu2 3 1>;
memory-region = <&dsp_reserved>;
+ access-controllers = <&aips5>;
status = "disabled";
};
};
--
2.34.1