Hi, After this series clients can ask to not receive notifications after each period. In this case we can disable the completion interrupt since the position reporting does not rely on it for cyclic mode. Patchset for ASoC part has been sent which allows users space to take adventage of SNDRV_PCM_INFO_NO_PERIOD_WAKEUP: [1] http://mailman.alsa-project.org/pipermail/alsa-devel/2014-July/078993.html When both series applied on top of linux-next: # cache the audio file in memory cat some_music.mp3 > /dev/null # start PA pulseaudio -v # in another terminal, play the music via PA mplayer -ao pulse some_music.mp3 # yet another terminal to monitor the interrupts watch cat /proc/interrupts # note the non increasing number of edma interrupts ;) Regards, Peter --- Peter Ujfalusi (2): dma: edma: Update caps->residue_granularity to match with reality dma: edma: Support to suppress the period interrupts in cyclic mode drivers/dma/edma.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) -- 2.0.0 -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
