Basic support for Left Justified coding for OMAP McBSP.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxx>
---
sound/soc/omap/omap-mcbsp.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 2952fb0..d315cc4 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -331,7 +331,8 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
format = mcbsp_data->fmt & SND_SOC_DAIFMT_FORMAT_MASK;
wpf = channels = params_channels(params);
- if (channels == 2 && format == SND_SOC_DAIFMT_I2S) {
+ if (channels == 2 && (format == SND_SOC_DAIFMT_I2S ||
+ format == SND_SOC_DAIFMT_LEFT_J)) {
/* Use dual-phase frames */
regs->rcr2 |= RPHASE;
regs->xcr2 |= XPHASE;
@@ -376,6 +377,7 @@ static int omap_mcbsp_dai_hw_params(struct snd_pcm_substream *substream,
/* Set FS period and length in terms of bit clock periods */
switch (format) {
case SND_SOC_DAIFMT_I2S:
+ case SND_SOC_DAIFMT_LEFT_J:
regs->srgr2 |= FPER(framesize - 1);
regs->srgr1 |= FWID((framesize >> 1) - 1);
break;
@@ -427,6 +429,12 @@ 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_LEFT_J:
+ /* 0-bit data delay */
+ regs->rcr2 |= RDATDLY(0);
+ regs->xcr2 |= XDATDLY(0);
+ regs->spcr1 |= RJUST(2);
+ break;
case SND_SOC_DAIFMT_DSP_A:
/* 1-bit data delay */
regs->rcr2 |= RDATDLY(1);
--
1.7.0.2
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