diff options
| -rw-r--r-- | include/sound/tlv320dac33-plat.h | 1 | ||||
| -rw-r--r-- | sound/soc/codecs/tlv320dac33.c | 13 |
2 files changed, 12 insertions, 2 deletions
diff --git a/include/sound/tlv320dac33-plat.h b/include/sound/tlv320dac33-plat.h index ac0665264bdf..3f428d53195b 100644 --- a/include/sound/tlv320dac33-plat.h +++ b/include/sound/tlv320dac33-plat.h @@ -15,6 +15,7 @@ struct tlv320dac33_platform_data { int power_gpio; + int keep_bclk; /* Keep the BCLK running in FIFO modes */ u8 burst_bclkdiv; }; diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c index e845c4b9066e..a6f19271aaea 100644 --- a/sound/soc/codecs/tlv320dac33.c +++ b/sound/soc/codecs/tlv320dac33.c @@ -93,6 +93,8 @@ struct tlv320dac33_priv { unsigned int nsample; /* burst read amount from host */ u8 burst_bclkdiv; /* BCLK divider value in burst mode */ + int keep_bclk; /* Keep the BCLK continuously running + * in FIFO modes */ enum dac33_state state; }; @@ -803,7 +805,10 @@ static int dac33_prepare_chip(struct snd_pcm_substream *substream) */ fifoctrl_a &= ~DAC33_FBYPAS; fifoctrl_a &= ~DAC33_FAUTO; - aictrl_b &= ~DAC33_BCLKON; + if (dac33->keep_bclk) + aictrl_b |= DAC33_BCLKON; + else + aictrl_b &= ~DAC33_BCLKON; break; case DAC33_FIFO_MODE7: /* @@ -814,7 +819,10 @@ static int dac33_prepare_chip(struct snd_pcm_substream *substream) */ fifoctrl_a &= ~DAC33_FBYPAS; fifoctrl_a |= DAC33_FAUTO; - aictrl_b &= ~DAC33_BCLKON; + if (dac33->keep_bclk) + aictrl_b |= DAC33_BCLKON; + else + aictrl_b &= ~DAC33_BCLKON; break; default: /* @@ -1234,6 +1242,7 @@ static int __devinit dac33_i2c_probe(struct i2c_client *client, dac33->power_gpio = pdata->power_gpio; dac33->burst_bclkdiv = pdata->burst_bclkdiv; + dac33->keep_bclk = pdata->keep_bclk; dac33->irq = client->irq; dac33->nsample = NSAMPLE_MAX; /* Disable FIFO use by default */ |