Adrian Hunter 50b2b540c0 PCI/PM: Don't sleep at all when d3_delay or d3cold_delay is zero
msleep() still sleeps 1 jiffy even when told to sleep for zero
milliseconds.  That can end up being 1-2 milliseconds or more.  In the
cases of d3_delay and d3cold_delay, that unnecessarily increases suspend
and/or resume latencies.

Do not sleep at all for the respective cases if d3_delay is zero or
d3cold_delay is zero.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-03-14 15:01:28 -05:00
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