topic Re: why bsp33 /sys/devices/system/cpu/cpufreq is empty? in S32G

why bsp33 /sys/devices/system/cpu/cpufreq is empty?

tomhan — Tue, 22 Aug 2023 08:34:47 GMT

hi,

I has set config as follow，but cpufreq is empty：

# CONFIG_UCLAMP_TASK is not set
# CONFIG_ENERGY_MODEL is not set
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
CONFIG_CPU_FREQ_STAT=y
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

#
# CPU frequency scaling drivers
#
# CONFIG_CPUFREQ_DT is not set
CONFIG_ARM_SCMI_CPUFREQ=y
CONFIG_PM_OPP=y

Re: why bsp33 /sys/devices/system/cpu/cpufreq is empty?

MayanksPatel — Wed, 23 Aug 2023 06:53:37 GMT

Hi @tomhan,

Thank you for reaching out to us.

Can you please share board details here for which board you are trying cpufreq?

Re: why bsp33 /sys/devices/system/cpu/cpufreq is empty?

tomhan — Wed, 23 Aug 2023 08:32:45 GMT

hi，

s32g274a bsp33，thanks

Re: why bsp33 /sys/devices/system/cpu/cpufreq is empty?

MayanksPatel — Thu, 24 Aug 2023 12:39:04 GMT

Hi @tomhan,

BSP33 release does not support Frequency Scaling. In BSP35 added support for this.

Thanks,

Mayank S Patel