diff options
| author | Christoph Huber <c.huber@bct-electronic.com> | 2016-08-15 18:59:25 +0200 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2016-08-31 19:21:09 -0400 |
| commit | 0df5268514aafd144b5b0402d03a21951961fa9f (patch) | |
| tree | f308ca11381d39e05dcc78b661be204ea2caf1d5 /sound | |
| parent | 7ae87eebbcf7bb96467ea4f3c6563e32e1f600bc (diff) | |
ASoC: atmel_ssc_dai: Don't unconditionally reset SSC on stream startup
[ Upstream commit 3e103a65514c2947e53f3171b21255fbde8b60c6 ]
commit cbaadf0f90d6 ("ASoC: atmel_ssc_dai: refactor the startup and
shutdown") refactored code such that the SSC is reset on every
startup; this breaks duplex audio (e.g. first start audio playback,
then start record, causing the playback to stop/hang)
Fixes: cbaadf0f90d6 (ASoC: atmel_ssc_dai: refactor the startup and shutdown)
Signed-off-by: Christoph Huber <c.huber@bct-electronic.com>
Signed-off-by: Peter Meerwald-Stadler <p.meerwald@bct-electronic.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/atmel/atmel_ssc_dai.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c index 841d05946b88..5420f2fe717e 100644 --- a/sound/soc/atmel/atmel_ssc_dai.c +++ b/sound/soc/atmel/atmel_ssc_dai.c @@ -298,8 +298,9 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream, clk_enable(ssc_p->ssc->clk); ssc_p->mck_rate = clk_get_rate(ssc_p->ssc->clk); - /* Reset the SSC to keep it at a clean status */ - ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_SWRST)); + /* Reset the SSC unless initialized to keep it in a clean state */ + if (!ssc_p->initialized) + ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_SWRST)); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { dir = 0; |