To avoid race condition especially in FIFO modes the sequence for enabling and disabling the codec need to be changed.
Signed-off-by: Peter Ujfalusi peter.ujfalusi@nokia.com --- sound/soc/codecs/tlv320dac33.c | 25 +++---------------------- 1 files changed, 3 insertions(+), 22 deletions(-)
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c index f9f367d..e845c4b 100644 --- a/sound/soc/codecs/tlv320dac33.c +++ b/sound/soc/codecs/tlv320dac33.c @@ -310,7 +310,8 @@ static inline void dac33_soft_power(struct snd_soc_codec *codec, int power) if (power) reg |= DAC33_PDNALLB; else - reg &= ~DAC33_PDNALLB; + reg &= ~(DAC33_PDNALLB | DAC33_OSCPDNB | + DAC33_DACRPDNB | DAC33_DACLPDNB); dac33_write(codec, DAC33_PWR_CTRL, reg); }
@@ -634,26 +635,6 @@ static irqreturn_t dac33_interrupt_handler(int irq, void *dev) return IRQ_HANDLED; }
-static void dac33_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_device *socdev = rtd->socdev; - struct snd_soc_codec *codec = socdev->card->codec; - struct tlv320dac33_priv *dac33 = codec->private_data; - unsigned int pwr_ctrl; - - /* Stop pending workqueue */ - if (dac33->fifo_mode) - cancel_work_sync(&dac33->work); - - mutex_lock(&dac33->mutex); - pwr_ctrl = dac33_read_reg_cache(codec, DAC33_PWR_CTRL); - pwr_ctrl &= ~(DAC33_OSCPDNB | DAC33_DACRPDNB | DAC33_DACLPDNB); - dac33_write(codec, DAC33_PWR_CTRL, pwr_ctrl); - mutex_unlock(&dac33->mutex); -} - static void dac33_oscwait(struct snd_soc_codec *codec) { int timeout = 20; @@ -751,6 +732,7 @@ static int dac33_prepare_chip(struct snd_pcm_substream *substream) }
mutex_lock(&dac33->mutex); + dac33_soft_power(codec, 0); dac33_soft_power(codec, 1);
reg_tmp = dac33_read_reg_cache(codec, DAC33_INT_OSC_CTRL); @@ -1185,7 +1167,6 @@ EXPORT_SYMBOL_GPL(soc_codec_dev_tlv320dac33); #define DAC33_FORMATS SNDRV_PCM_FMTBIT_S16_LE
static struct snd_soc_dai_ops dac33_dai_ops = { - .shutdown = dac33_shutdown, .hw_params = dac33_hw_params, .prepare = dac33_pcm_prepare, .trigger = dac33_pcm_trigger,