st32mp257f: scarthgap gpu etnaviv optee clk_stm32_pll_init

[Anton Olofsson]

Regarding OpenStLinux (yocto) for stm32mp257f.

Mickledore: everything works fine for our custom stm32mp257f board.

Scarthgap: everything works except 3D graphics. When loading module etnaviv we get the following system hangup (optee panic):

[   13.139084] etnaviv etnaviv: bound 48280000.gpu (ops gpu_ops [etnaviv])
[   13.186566] videodev: Linux video capture interface: v2.00
E/TC:1 0 Panic at /usr/src/debug/optee-os-stm32mp/4.0.0-stm32mp-r1/core/drivers/clk/clk-stm32mp25.c:1976 <clk_stm32_pll_init>
E/TC:1 0 TEE load address @ 0x82000000
E/TC:1 0 Call stack:
E/TC:1 0  0x82007ed8
...<cut>...
E/TC:1 0  0x820064b0
I/TC: Halting CPU 0

We understand it can be hard to say "this is your problem", but any information on where to look would be much appreciated!

Best regards,

Anton

[Anton Olofsson · Accepted solution]

For future reference:

It got suggested to us by ST that the problem is that etnaviv is the wrong driver and we should use gcnano driver.

Best regards,

Anton