• Sudeep Holla's avatar
    cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table · d9975b0b
    Sudeep Holla authored
    Currently when performing random CPU hot-plugs and suspend-to-ram(S2R)
    on systems using arm_big_little cpufreq driver, we get warnings similar
    to something like below:
    
    cpu cpu1: _opp_add: duplicate OPPs detected. Existing: freq: 600000000,
    	volt: 800000, enabled: 1. New: freq: 600000000, volt: 800000, enabled: 1
    
    This is mainly because the OPPs for the shared cpus are not set. We can
    just use dev_pm_opp_of_cpumask_add_table in case the OPPs are obtained
    from DT(arm_big_little_dt.c) or use dev_pm_opp_set_sharing_cpus if the
    OPPs are obtained by other means like firmware(e.g. scpi-cpufreq.c)
    
    Also now that the generic dev_pm_opp{,_of}_cpumask_remove_table can
    handle removal of opp table and entries for all associated CPUs, we can
    re-use dev_pm_opp{,_of}_cpumask_remove_table as free_opp_table in
    cpufreq_arm_bL_ops.
    
    This patch makes necessary changes to reuse the generic OPP functions for
    {init,free}_opp_table and thereby eliminating the warnings.
    Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
    Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    d9975b0b
arm_big_little.c 17.3 KB