1. 23 9月, 2014 1 次提交
  2. 29 8月, 2014 2 次提交
  3. 03 12月, 2013 1 次提交
  4. 10 9月, 2013 1 次提交
  5. 24 6月, 2013 5 次提交
  6. 20 6月, 2013 1 次提交
  7. 07 1月, 2013 4 次提交
  8. 19 12月, 2012 4 次提交
  9. 04 12月, 2012 1 次提交
    • H
      ehci: Lower timer freq when the periodic schedule is idle · 80826240
      Hans de Goede 提交于
      Lower the timer freq if no iso schedule packets complete for 64 frames in
      a row.
      
      We can safely do this, without adding latency, because:
      1) If there is isoc traffic this will never trigger
      2) For async handled interrupt packets (only usb-host), the completion handler
         will immediately schedule the frame_timer from a bh
      3) All devices using NAK to signal no data for interrupt endpoints now use
         wakeup, which will immediately schedule the frame_timer from a bh
      
      The advantage of this is that when we only have interrupt packets in the
      periodic schedule, async_stepdown can do its work and significantly lower
      the frequency at which the frame_timer runs.
      Signed-off-by: NHans de Goede <hdegoede@redhat.com>
      Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
      80826240
  10. 09 11月, 2012 1 次提交
  11. 01 11月, 2012 1 次提交