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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-18 10:45:22 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-18 10:45:22 -0800
commit9da96f99f15169b8bf77a1f27ed6d926f82ea59f (patch)
tree1943e686fef96e694b7660c775e2194263a69801 /sound/pci/hda/patch_sigmatel.c
parent0aa0313f9d576affd7747cc3f179feb097d28990 (diff)
parent31f5260a7653e6042ac28578db1c61e84f2d7898 (diff)
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar: "An Intel PMU driver hotplug fix and three 'perf probe' tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Handle exclusive threadid correctly on CPU hotplug perf probe: Fix to probe on gcc generated functions in modules perf probe: Add error checks to offline probe post-processing perf probe: Fix to show correct locations for events on modules
Diffstat (limited to 'sound/pci/hda/patch_sigmatel.c')
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 'sound/soc/atmel/Makefile')