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ASoC: sirf: usp: Add bitclock inversion support 

Signed-off-by: Rongjun Ying <rongjun.ying@csr.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Rongjun Ying 2014-08-13 16:31:40 +08:00 committed by Mark Brown
parent 7d1311b93e
commit 0d985b1c76
1 changed files with 23 additions and 1 deletions
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24
sound/soc/sirf/sirf-usp.c
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@ -100,6 +100,16 @@ static int sirf_usp_pcm_set_dai_fmt(struct snd_soc_dai *dai,
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_IB_NF:
usp->daifmt_format |= (fmt & SND_SOC_DAIFMT_INV_MASK);
break;
default:
return -EINVAL;
}
return 0;
}
@ -177,7 +187,7 @@ static int sirf_usp_pcm_hw_params(struct snd_pcm_substream *substream,
shifter_len = data_len;
switch (usp->daifmt_format) {
switch (usp->daifmt_format & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
regmap_update_bits(usp->regmap, USP_RX_FRAME_CTRL,
USP_I2S_SYNC_CHG, USP_I2S_SYNC_CHG);
@ -193,6 +203,18 @@ static int sirf_usp_pcm_hw_params(struct snd_pcm_substream *substream,
return -EINVAL;
}
switch (usp->daifmt_format & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
break;
case SND_SOC_DAIFMT_IB_NF:
regmap_update_bits(usp->regmap, USP_MODE1,
USP_RXD_ACT_EDGE_FALLING | USP_TXD_ACT_EDGE_FALLING,
USP_RXD_ACT_EDGE_FALLING);
break;
default:
return -EINVAL;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
regmap_update_bits(usp->regmap, USP_TX_FRAME_CTRL,
USP_TXC_DATA_LEN_MASK | USP_TXC_FRAME_LEN_MASK