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authorZhang Rui <rui.zhang@intel.com>2017-01-20 16:24:54 +0800
committerZhang Rui <rui.zhang@intel.com>2017-01-20 16:24:54 +0800
commitbad94f8068122b6342a73a218dad7d41e6ea907b (patch)
tree80e425d58f0052fddc1fb7e211c8f0a943cfb544 /sound/pci/hda
parentf53345e8cf027d03187b9417f1f8883c516e1a5b (diff)
parent6c75a5d1131eba90fcf04adc586167e65afc79b0 (diff)
Merge branches 'thermal-core' and 'thermal-soc' into for-rc
Diffstat (limited to 'sound/pci/hda')
0 files changed, 0 insertions, 0 deletions
a transfers. Increasing the autosuspend delay won't help as that the delay could be potentially seconds, and it's best to let the USB subsystem to deal with the timeouts on errors. The earlier attempt for runtime PM was buggy as the pm_runtime_get/put() calls could get unpaired easily as they did not follow the state of the chan_busy array as described in commit 098de42ad670 ("dmaengine: cppi41: Fix unpaired pm runtime when only a USB hub is connected". Let's fix the issue by adding pm_runtime_get() to where a new transfer is added to the chan_busy array, and calls to pm_runtime_put() where chan_busy array entry is cleared. This prevents any autosuspend timeouts from happening while dma transfers are active. Fixes: 098de42ad670 ("dmaengine: cppi41: Fix unpaired pm runtime when only a USB hub is connected") Fixes: fdea2d09b997 ("dmaengine: cppi41: Add basic PM runtime support") Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Bin Liu <b-liu@ti.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Patrick Titiano <ptitiano@baylibre.com> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Tested-by: Bin Liu <b-liu@ti.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'tools/perf/scripts/Build')