diff options
| author | Daniel Kurtz <[email protected]> | 2018-07-02 15:19:54 -0600 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2018-07-03 16:14:31 +0100 |
| commit | 8c6b964eddd2c39a9796899b2be099ece1b6c6ca (patch) | |
| tree | 8300fbd8dbc2190570e4e77a967432a9c2ccc98a /tools/perf/scripts/python | |
| parent | 55af49ac1b8627dfbfa2689af118d994d7a0ba1b (diff) | |
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 <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions