"cpufreq-info" command not working in imx93 Based custom board in yocto scarthgap 6.6.36

[arun_mozhi_thevan]

When i run "cpufreq-info" command on yocto , i got the below error.

Below i have add what are the configurations are enbaled in defconfig
CONFIG_CPUSETS=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_ARM_PSCI_CPUIDLE=y
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_FREQ_GOV_POWERSAVE=y
CONFIG_CPU_FREQ_GOV_USERSPACE=y
CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
CONFIG_CPUFREQ_DT=y
CONFIG_ACPI_CPPC_CPUFREQ=m
CONFIG_ARM_SCPI_CPUFREQ=y
CONFIG_ARM_IMX_CPUFREQ_DT=y
CONFIG_ARM_SCMI_CPUFREQ=y
CONFIG_QORIQ_CPUFREQ=y
CONFIG_CPU_THERMAL=y
CONFIG_LEDS_TRIGGER_CPU=y
CONFIG_CORESIGHT_CPU_DEBUG=m


Please suggest me any fixes?

[arun_mozhi_thevan]

Hi ,
i could not able to find  mode directory
ls /sys/devices/platform/imx93-lpm/
driver_override of_node/ subsystem/ uevent
modalias power/ supplier:platform:44450000.clock-controller/ waiting_for_supplier

Please suggest me any fix ?

[Chavira]

Hi @arun_mozhi_thevan!

Thank you for contacting NXP Support!

Try with the command mhz.

The result should be the next:

Best Regards!

Chavira

[arun_mozhi_thevan]

Hi @Chavira 

Why we could not able to use cpufreq-info command on imx93 custom board ?

[Chavira · Accepted solution]

Hi @arun_mozhi_thevan!

Unfortunately in general in i.MX93 the Cpu frecuency is managed by lpm (Low power Module) and we use the lpm driver in iMX93 and is the reason that we obtain the error using that command.

You can use the mhz command instead.

Best Regards!

Chavira

[arun_mozhi_thevan]

thanks for the help