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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-10-05 01:15:59 +0400 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-10-05 14:22:22 +0400 |
| commit | 9b8a83b205bd07b06784028effd94515fe9278c3 (patch) | |
| tree | 82e015462cf5e36769c2da61d3bf49f6d2873e63 /include/asm-generic/mutex-null.h | |
| parent | 75c1f891b4c394c607532fdcea294c2556e410c4 (diff) | |
| download | linux-9b8a83b205bd07b06784028effd94515fe9278c3.tar.xz | |
ASoC: Only run power_check() on a widget once per run
Some widgets will get power_check() run on them more than once during a
DAPM run, most commonly due to supply widgets checking to see if their
consumers are powered up. It's wasteful to do this so cache the result
of power_check() during a run. For one system I tested this on I got an
improvement of:
Power Path Neighbour
Before: 106 970 1186
After: 69 727 905
from this.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/asm-generic/mutex-null.h')
0 files changed, 0 insertions, 0 deletions