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authorPeter Ujfalusi <peter.ujfalusi@nokia.com>2009-04-15 15:38:56 +0300
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-04-16 14:04:10 +0100
commit3ba191ce051a32b20757f063120496e860ea8f9d (patch)
treed80b632ae8027d26ed336805e21e96c8759e6550 /sound/soc/omap
parentc29b206ffd0700acb2dc1fdb70856cc4b907216c (diff)
ASoC: OMAP: Add DSP_A mode support for mcbsp
DSP_A mode is similar to the DSP_B, but the MSB is delayed with one bclk (appears after the FS pulse and not under it). Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Acked-by: Jarkko Nikula <jarkko.nikula@nokia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/omap')
-rw-r--r--sound/soc/omap/omap-mcbsp.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 402a1eb7bd3..2b4a8da0991 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -287,6 +287,7 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
regs->srgr2 |= FPER(wlen * channels - 1);
regs->srgr1 |= FWID(wlen - 1);
break;
+ case SND_SOC_DAIFMT_DSP_A:
case SND_SOC_DAIFMT_DSP_B:
regs->srgr2 |= FPER(wlen * channels - 1);
regs->srgr1 |= FWID(wlen * channels - 2);
@@ -330,6 +331,13 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai,
regs->rcr2 |= RDATDLY(1);
regs->xcr2 |= XDATDLY(1);
break;
+ case SND_SOC_DAIFMT_DSP_A:
+ /* 1-bit data delay */
+ regs->rcr2 |= RDATDLY(1);
+ regs->xcr2 |= XDATDLY(1);
+ /* Invert FS polarity configuration */
+ temp_fmt ^= SND_SOC_DAIFMT_NB_IF;
+ break;
case SND_SOC_DAIFMT_DSP_B:
/* 0-bit data delay */
regs->rcr2 |= RDATDLY(0);