AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

ASoC: DaVinci: Correct McASP FIFO initialization

Browse Source 
McASP write FIFO registers should be modified for playback and read FIFO
registers for capture. Check the PCM mode before manipulating the
FIFO registers. Currently, irrespective of playback/capture both the
FIFOs are enabled or disbaled. This resulted in errors in audio loopback
mode.

Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Chaithrika U S 2009-09-23 10:12:08 -04:00 committed by Mark Brown
parent 92e2a6f682
commit 539d3d8cbe
1 changed files with 18 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
sound/soc/davinci/davinci-mcasp.c
View File

@ -378,17 +378,17 @@ static void mcasp_start_tx(struct davinci_audio_dev *dev)
static void davinci_mcasp_start(struct davinci_audio_dev *dev, int stream)
{
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (dev->txnumevt) /* enable FIFO */
mcasp_set_bits(dev->base + DAVINCI_MCASP_WFIFOCTL,
FIFO_ENABLE);
mcasp_start_tx(dev);
else
} else {
if (dev->rxnumevt) /* enable FIFO */
mcasp_set_bits(dev->base + DAVINCI_MCASP_RFIFOCTL,
FIFO_ENABLE);
mcasp_start_rx(dev);
/* enable FIFO */
if (dev->txnumevt)
mcasp_set_bits(dev->base + DAVINCI_MCASP_WFIFOCTL, FIFO_ENABLE);
if (dev->rxnumevt)
mcasp_set_bits(dev->base + DAVINCI_MCASP_RFIFOCTL, FIFO_ENABLE);
}
}
static void mcasp_stop_rx(struct davinci_audio_dev *dev)
@ -405,17 +405,17 @@ static void mcasp_stop_tx(struct davinci_audio_dev *dev)
static void davinci_mcasp_stop(struct davinci_audio_dev *dev, int stream)
{
if (stream == SNDRV_PCM_STREAM_PLAYBACK)
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (dev->txnumevt) /* disable FIFO */
mcasp_clr_bits(dev->base + DAVINCI_MCASP_WFIFOCTL,
FIFO_ENABLE);
mcasp_stop_tx(dev);
else
} else {
if (dev->rxnumevt) /* disable FIFO */
mcasp_clr_bits(dev->base + DAVINCI_MCASP_RFIFOCTL,
FIFO_ENABLE);
mcasp_stop_rx(dev);
/* disable FIFO */
if (dev->txnumevt)
mcasp_clr_bits(dev->base + DAVINCI_MCASP_WFIFOCTL, FIFO_ENABLE);
if (dev->rxnumevt)
mcasp_clr_bits(dev->base + DAVINCI_MCASP_RFIFOCTL, FIFO_ENABLE);
}
}
static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai,