For multi-cluster platforms like i.MX8QM, the best cpufreq
governor is schedutil, as common cpufreq framework decides
default cpufreq governor in static compile, so this patch
adds dynamic switch of cpufreq governor according to cluster
number, changing it via sysfs interface, although it is
ugly, but it realizes dynamic cpufreq governor select for
users.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Register cpu-freq cooling device if device tree
supports cooling-cells, different cluster can
have its own cooling device settings.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
For i.MX8QM/8QXP, suspend freq can use policy->max after cpu
freq table is validated, so no need to get OPP number and MAX
frequency for suspend freq now, also add necessary resource free
when probe failed.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Add SIP cpu-freq support, the CPU hardware frequency
scale will be performed by ARM Trusted Firmware,
and add cpu-freq suspend support, MAX frequency will
be used during suspend.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Anson Huang