Thanks Lukasz for comment. For any reason (ex: HW dependency, etc), if init_call level of cpufreq/devfreq driver changed prior to fs_init call, we would land there right? One of such example is, 'drivers/cpufreq/qcom-cpufreq-hw.c' uses postcore_initcall(). Thanks, Chandrasekhar L On 10/19/2021 10:35 PM, Lukasz Luba wrote: > > > On 10/19/21 4:28 PM, Lingutla Chandrasekhar wrote: >> em_dev_register_perf_domain() can be called from any initcall level before > > The EM is registered by cpufreq drivers (or devfreq), which is later > than fs_initcall, so the debugfs is setup. We even have added recently > a dedicated callback into the cpufreq (register_em()) for that. > > Do you have such code which registers EM for CPUs (or some devfreq) > earlier than this fs_initcall? > > I cannot find such code in mainline. > > Regards, > Lukasz -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
