• Ulf Hansson's avatar
    PM / Domains: Handle errors from genpd's ->attach_dev() callback · b472c2fa
    Ulf Hansson authored
    The optional genpd's ->attach_dev() callback is invoked from
    __pm_genpd_add_device(). Let's add error handling from the response
    from this callback and propagate the error code.
    
    When __pm_genpd_add_device() is invoked through the generic OF-based PM
    domain look-up path, the device is being probed. Returning an error
    will mean the device won't be attached to its PM domain. Errors of
    -EPROBE_DEFER get special treatment and is propagated to the driver
    core.
    
    Therefore this change also enables the ->attach_dev() callback to
    be able to request for a deferred probe sequence.
    Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
    Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
    b472c2fa
domain.c 59.8 KB