Rockchip: devfreq for Mali GPU not loaded

easyb · March 9, 2020 at 10:24 AM

Hi,

I am working on H96 Max+ / T9 (RK3328) support for master (Rockchip: add H96 Max+ support by easybe · Pull Request #4195 · LibreELEC/LibreELEC.tv · GitHub).

I think the problem that I am currently facing (vdd_logic too low, see PR comments) is related to the fact that devfreq does not seem to be loaded for the GPU (/sys/class/devfreq/ff300000.gpu/ is empty). With the old rockchip-linux images I have it. Is this even available with the mainline kernel? Any hints what I am missing here?

Cheers,

Ezra.

**jernej** · March 10, 2020 at 4:02 PM Official Post

lima driver (used for mali450) doesn't support devfreq yet, but it's worked upon. Currently it's expected that reasonable defaults will be set either by bootloader or DT (if possible).

easyb · March 10, 2020 at 8:04 PM

Thank you very much for the clarification. I'll just add a hack to the DT.

Rockchip: devfreq for Mali GPU not loaded

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