Answering to myself while still struggling to achieve control on CPU freq, in Batocera>System settings>Information>Cpu frequency I can see value 1512/1992 (A53/A72 cores speed) so my goal is to have a little bit more than that at all times.
doing cat /sys/devices/system/cpu/cpufreq/policy0/scaling_available_frequencies
returns 408000 600000 816000 1008000 1200000 1416000 1512000
doing cat /sys/devices/system/cpu/cpufreq/policy4/scaling_available_frequencies
returns 408000 600000 816000 1008000 1200000 1416000 1608000 1800000 1992000
doing cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
returns “performance” 6 rows, cause there are 6 cores on the RockPro64 cpu.
so my goal is to update those policies doing the same as in the Reddit thread… any help welcome.