• Daniel Lezcano's avatar
    cpuidle: simplify multiple driver support · 82467a5a
    Daniel Lezcano authored
    Commit bf4d1b5d
     (cpuidle: support multiple drivers) introduced support
    for using multiple cpuidle drivers at the same time.  It added a
    couple of new APIs to register the driver per CPU, but that led to
    some unnecessary code complexity related to the kernel config options
    deciding whether or not the multiple driver support is enabled.  The
    code has to work as it did before when the multiple driver support is
    not enabled and the multiple driver support has to be compatible with
    the previously existing API.
    Remove the new API, not used by any driver in the tree yet (but
    needed for the HMP cpuidle drivers that will be submitted soon), and
    add a new cpumask pointer to the cpuidle driver structure that will
    point to the mask of CPUs handled by the given driver.  That will
    allow the cpuidle_[un]register_driver() API to be used for the
    multiple driver support along with the cpuidle_[un]register()
    functions added recently.
    [rjw: Changelog]
    Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>