Kernel: failed to get ack on domain 'pd_npu'

Paquq

Hello, when starting the kernel from the sdk, a kernel panic occurs with the error rockchip-pm-pomain fdd90000.power-management:power-controller: failed to get ack on domain 'pd_npu', target_idle = 0, target_ack = 0, val=0x6
The only discussion on the forum https://forum.radxa.com/t/linux-kernel-giving-panic/8068 didn't help solve the problem.

Javier

Hey,
The only way you can do is close the npu in kernel through kernel dts,
Or try to use bsp uboot CONFIG_ROCKCHIP_EARLY_DISTRO_DTB

Paquq

Javier Posted at 9/2/2022 09:34
Hey,
The only way you can do is close the npu in kernel through kernel dts,
Or try to use bsp uboo ...

It turned out to edit dts, everything works, and with CONFIG_ROCKCHIP_EARLY_DISTRO_DTS, an error occurs when compiling to include/Linux/kernel.h in line 41 "fdt_size may be used uninitialized in this function"

I hope disabling pd_npu won't affect anything

Firefly_Javier

Paquq Posted at 9/2/2022 14:14
It turned out to edit dts, everything works, and with CONFIG_ROCKCHIP_EARLY_DISTRO_DTS, an error o ...

Good to hear! Npu is only used in ai scene, so don't worry