From: Lars-Peter Clausen <lars@metafoo.de>
To: Mark Brown <broonie@opensource.wolfsonmicro.com>,
Liam Girdwood <lrg@ti.com>,
Vinod Koul <vinod.koul@linux.intel.com>
Cc: Mika Westerberg <mika.westerberg@iki.fi>,
Lars-Peter Clausen <lars@metafoo.de>,
alsa-devel@alsa-project.org
Subject: [PATCH 1/2] ASoC: dmaengine_pcm: Reset pointer position when starting a stream
Date: Mon, 5 Mar 2012 14:02:14 +0100 [thread overview]
Message-ID: <1330952535-30614-1-git-send-email-lars@metafoo.de> (raw)
From: Mika Westerberg <mika.westerberg@iki.fi>
Otherwise a wrong position will be reported after restarting a stream and the
first few samples might be skipped.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
---
sound/soc/soc-dmaengine-pcm.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/sound/soc/soc-dmaengine-pcm.c b/sound/soc/soc-dmaengine-pcm.c
index 0526cf8..4420b70 100644
--- a/sound/soc/soc-dmaengine-pcm.c
+++ b/sound/soc/soc-dmaengine-pcm.c
@@ -142,6 +142,7 @@ static int dmaengine_pcm_prepare_and_submit(struct snd_pcm_substream *substream)
direction = snd_pcm_substream_to_dma_direction(substream);
+ prtd->pos = 0;
desc = chan->device->device_prep_dma_cyclic(chan,
substream->runtime->dma_addr,
snd_pcm_lib_buffer_bytes(substream),
--
1.7.9.1
next reply other threads:[~2012-03-05 13:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-05 13:02 Lars-Peter Clausen [this message]
2012-03-05 13:02 ` [PATCH 2/2] ASoC: ep93xx-pcm: Use dmaengine PCM helper functions Lars-Peter Clausen
2012-03-05 13:09 ` [PATCH 1/2] ASoC: dmaengine_pcm: Reset pointer position when starting a stream Mark Brown
2012-03-08 10:26 ` Lars-Peter Clausen
2012-03-12 18:57 ` Mika Westerberg
2012-03-12 19:04 ` Mark Brown
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