diff options
| author | Peter Ujfalusi <peter.ujfalusi@nokia.com> | 2010-03-11 16:26:21 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-12 11:12:24 +0000 |
| commit | c3746a07f13f8711885fd3909c03477a1b47ab82 (patch) | |
| tree | a80f702d0d7df8008fbf36925cd9e2b05427c27f /sound | |
| parent | aa9b88ee80d3985ebae9567a8f4e0d07ce15b5a7 (diff) | |
ASoC: tlv320dac33: Start/stop sequence change
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>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | 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 f9f367d29a9..e845c4b9066 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, |