From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
To: alsa-devel@alsa-project.org
Cc: Mark Brown <broonie@kernel.org>,
Jarkko Nikula <jarkko.nikula@linux.intel.com>,
Liam Girdwood <lgirdwood@gmail.com>
Subject: [PATCH 1/4] ASoC: Intel: Clear stored Baytrail DSP DMA pointer before stream start
Date: Mon, 26 May 2014 16:56:30 +0300 [thread overview]
Message-ID: <1401112593-2852-1-git-send-email-jarkko.nikula@linux.intel.com> (raw)
Stored DSP DMA pointer must be cleared before starting the stream since
PCM pointer callback sst_byt_pcm_pointer() can be called before pointer is
updated. In that case last position of previous stream was wronly returned.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
---
sound/soc/intel/sst-baytrail-pcm.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/soc/intel/sst-baytrail-pcm.c b/sound/soc/intel/sst-baytrail-pcm.c
index 3af38576e91e..8eab97368ea7 100644
--- a/sound/soc/intel/sst-baytrail-pcm.c
+++ b/sound/soc/intel/sst-baytrail-pcm.c
@@ -180,6 +180,7 @@ static int sst_byt_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
+ pcm_data->hw_ptr = 0;
sst_byt_stream_start(byt, pcm_data->stream, 0);
break;
case SNDRV_PCM_TRIGGER_RESUME:
--
2.0.0.rc2
next reply other threads:[~2014-05-26 13:56 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-26 13:56 Jarkko Nikula [this message]
2014-05-26 13:56 ` [PATCH 2/4] ASoC: Intel: remove duplicate headers Jarkko Nikula
2014-05-26 13:56 ` [PATCH 3/4] ASoC: Intel: Use devm_snd_soc_unregister_card Jarkko Nikula
2014-05-28 9:35 ` [PATCHv2 3/4] ASoC: Intel: Use devm_snd_soc_register_card Jarkko Nikula
2014-06-01 10:52 ` Mark Brown
2014-05-26 13:56 ` [PATCH 4/4] ASoC: Intel: byt-rt5640: Use card PM ops from core Jarkko Nikula
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