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    SubjectRe: [linux-pm] suspend blockers & Android integration
    From
    2010/6/6 Matthew Garrett <mjg59@srcf.ucam.org>:
    > On Sun, Jun 06, 2010 at 07:21:49PM +0200, Vitaly Wool wrote:
    >> 2010/6/6 Matthew Garrett <mjg59@srcf.ucam.org>:
    >>
    >> > Suspend blocks prevent system suspend, not any per-device suspend.
    >>
    >> Can you suspend a device which is holding a wake lock?
    >
    > Yes. Suspend blocks are orthogonal to runtime PM.

    In that sense yes, but as it has been stated before; if Android
    user-space concentrates on getting suspend blockers right, then the
    timers in user-space will not be aligned correctly, and runtime PM
    wouldn't work that great. Moreover, opportunistic suspend takes the
    device out of idle. So, as runtime PM gets better, there's a point
    where opportunistic suspend makes the situation worst.

    So they are _mostly_ orthogonal, but not completely, at least for the
    analysis of suspend blockers' usefulness.

    --
    Felipe Contreras


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