diff options
Diffstat (limited to 'sound/soc/davinci')
| -rw-r--r-- | sound/soc/davinci/davinci-mcasp.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c index 9f7c2e153ecd..11728cd7c2a2 100644 --- a/sound/soc/davinci/davinci-mcasp.c +++ b/sound/soc/davinci/davinci-mcasp.c @@ -477,6 +477,23 @@ static int davinci_mcasp_set_dai_fmt(struct snd_soc_dai *cpu_dai, struct davinci_audio_dev *dev = snd_soc_dai_get_drvdata(cpu_dai); void __iomem *base = dev->base; + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_DSP_B: + case SND_SOC_DAIFMT_AC97: + mcasp_clr_bits(dev->base + DAVINCI_MCASP_TXFMCTL_REG, FSXDUR); + mcasp_clr_bits(dev->base + DAVINCI_MCASP_RXFMCTL_REG, FSRDUR); + break; + default: + /* configure a full-word SYNC pulse (LRCLK) */ + mcasp_set_bits(dev->base + DAVINCI_MCASP_TXFMCTL_REG, FSXDUR); + mcasp_set_bits(dev->base + DAVINCI_MCASP_RXFMCTL_REG, FSRDUR); + + /* make 1st data bit occur one ACLK cycle after the frame sync */ + mcasp_set_bits(dev->base + DAVINCI_MCASP_TXFMT_REG, FSXDLY(1)); + mcasp_set_bits(dev->base + DAVINCI_MCASP_RXFMT_REG, FSRDLY(1)); + break; + } + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { case SND_SOC_DAIFMT_CBS_CFS: /* codec is clock and frame slave */ @@ -765,8 +782,6 @@ static void davinci_hw_param(struct davinci_audio_dev *dev, int stream) else printk(KERN_ERR "playback tdm slot %d not supported\n", dev->tdm_slots); - - mcasp_clr_bits(dev->base + DAVINCI_MCASP_TXFMCTL_REG, FSXDUR); } else { /* bit stream is MSB first with no delay */ /* DSP_B mode */ @@ -779,8 +794,6 @@ static void davinci_hw_param(struct davinci_audio_dev *dev, int stream) else printk(KERN_ERR "capture tdm slot %d not supported\n", dev->tdm_slots); - - mcasp_clr_bits(dev->base + DAVINCI_MCASP_RXFMCTL_REG, FSRDUR); } } |