• Viresh Kumar's avatar
    cpufreq: Allow drivers to enable boost support after registering driver · 44139ed4
    Viresh Kumar authored
    
    
    In some cases it wouldn't be known at time of driver registration, if
    the driver needs to support boost frequencies.
    
    For example, while getting boost information from DT with opp-v2
    bindings, we need to parse the bindings for all the CPUs to know if
    turbo/boost OPPs are supported or not.
    
    One way out to do that efficiently is to delay supporting boost mode
    (i.e. creating /sys/devices/system/cpu/cpufreq/boost file), until the
    time OPP bindings are parsed.
    
    At that point, the driver can enable boost support. This can be done at
    ->init(), where the frequency table is created.
    
    To do that, the driver requires few APIs from cpufreq core that let him
    do this. This patch provides these APIs.
    
    Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
    Reviewed-by: default avatarStephen Boyd <sboyd@codeaurora.org>
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    44139ed4