Gpu clock at amlogic

General
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Hi, is it possible to see frequence of used gpu and how in Coreelec? If is used only 650 mhz as base clock or also 850 mhz as boost clock? Amlogic S922XJ

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I found only this command:

It work at kernel 4.9 and would be also work at kernel 5.15 (but not in this time not in coreelec 22NO):

cat /sys/class/mpgpu/cur_freq

In ondemand and performance modeis freq at value: only 800 as default (boost) without change up or down at my device Ugoos am6plus with s922xj at CE21NG. In CE22NO is not working - can not open due to no exist file or directory.

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