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| author |   Richard Zhao <richard.zhao@freescale.com> | 2012-05-11 15:14:27 +0800 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@linux.intel.com> | 2012-05-11 14:00:38 +0530 |
| commit | 2ccaef0520d18d0072153f090d4110b4075c332c (patch) | |
| tree | c4fcc9cbac1f7448263701ae5c5926f28351935c /tools/perf/scripts/python/syscall-counts.py | |
| parent | dmaengine: Fixup dmaengine_prep_slave_single() to be actually useful (diff) | |
| download | linux-dev-2ccaef0520d18d0072153f090d4110b4075c332c.tar.xz linux-dev-2ccaef0520d18d0072153f090d4110b4075c332c.zip | |
dma: imx-sdma: make channel0 operations atomic
device_prep_dma_cyclic may be call in audio trigger function which is
atomic context, so we make it atomic too.
- change channel0 lock to spinlock.
- Use polling to wait for channel0 finish running.
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions