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| author | Daniel Kurtz <djkurtz@chromium.org> | 2018-07-02 15:19:54 -0600 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-03 16:14:31 +0100 |
| commit | 8c6b964eddd2c39a9796899b2be099ece1b6c6ca (patch) | |
| tree | 8300fbd8dbc2190570e4e77a967432a9c2ccc98a /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 55af49ac1b8627dfbfa2689af118d994d7a0ba1b (diff) | |
| download | linux-8c6b964eddd2c39a9796899b2be099ece1b6c6ca.tar.gz linux-8c6b964eddd2c39a9796899b2be099ece1b6c6ca.zip | |
ASoC: AMD: Do not generate interrups for every captured sample
On capture, audio data is first copied from I2S to ACP memory, and then
from ACP to SYSRAM. The I2S_TO_ACP_DMA interrupt fires on every sample
transferred from I2S to ACP memory. That is it fires ~48000 times per
second when capturing @ 48 kHz. Since we don't do anything on this
interrupt anyway, disable it to save quite a few unnecessary interrupts.
The real "work" (calling snd_pcm_period_elapsed()) is done when transfer
from ACP to SYSRAM is complete.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions