Panic at core/kernel/dt_driver.c:904 <probe_dt_drivers>

[SullyNiu]

I'm using a custom board, and use  the optee device tree generated by STM32CUBEMX and full UART log. Panic at core/kernel/dt_driver.c:904 <probe_dt_drivers>. How to solve this problem?

[ItayElezweig]

Hey, I'm having a very similar issue (Custom board, optee devicetree generated by the CubeMX), I was wondering were you able to get this resolved?

[GatienC]

Hello,

This indicates that a driver(core/drivers/stm32_cpu_opp.c) has failed to probe in OP-TEE. This leads to a panic of the platform to prevent undesired behavior in the TEE. The error code refers to something not supported (error code 0xFFFF000A being  TEE_ERROR_NOT_SUPPORTED).

It probably means that there's something wrong with the OPP being configured, whether it's linked to the regulator or the frequency. It seems you don't have a PMIC and maybe there's something wrong with the regulator referenced by the  "cpu-supply" property of your board. Maybe you can take example on other PMIC-less boards.

I hope it sets you in the right track,

Gatien