linux/sound/soc/mediatek
Koro Chen e4fba9b5be ASoC: mediatek: Increase periods_min in capture
In capture, there is chance that hw_ptr reported at IRQ is
a little smaller than period_size due to internal AFE buffer.
In the case of ping-pong buffer:

|xxxxxxxxxxxxxxxxxxxxxxxxxxxx--|-----------------------------|
                            hw_ptr < period_size

This available buffer will not be read since its size is smaller than
avail_min (which is period_size by default), and read thread continues
to sleep. If the next hw_ptr is just a little larger than buffer_size,
overrun occurs. One more period can hold the possible unread buffer.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-09-14 18:13:54 +01:00
..
Kconfig ASoC: mediatek: Add machine driver for rt5650 rt5676 codec 2015-06-16 12:52:36 +01:00
Makefile ASoC: mediatek: Add machine driver for rt5650 rt5676 codec 2015-06-16 12:52:36 +01:00
mt8173-max98090.c Merge remote-tracking branches 'asoc/topic/mediatek', 'asoc/topic/mtk', 'asoc/topic/nuc900', 'asoc/topic/of-name' and 'asoc/topic/omap' into asoc-next 2015-08-30 15:55:21 +01:00
mt8173-rt5650-rt5676.c Merge remote-tracking branches 'asoc/topic/mediatek', 'asoc/topic/mtk', 'asoc/topic/nuc900', 'asoc/topic/of-name' and 'asoc/topic/omap' into asoc-next 2015-08-30 15:55:21 +01:00
mtk-afe-common.h ASoC: mediatek: Add suspend/resume callbacks 2015-07-22 11:11:18 +01:00
mtk-afe-pcm.c ASoC: mediatek: Increase periods_min in capture 2015-09-14 18:13:54 +01:00