[alsa-devel] [PATCHv2 2/5] ASoC: tlv320dac33: Skip calculations in FIFO Bypass mode

Peter Ujfalusi peter.ujfalusi at nokia.com
Fri Apr 23 09:09:58 CEST 2010


There is no need for calculations for FIFO bypass mode.
Just in case set the nsample maximum limit, which
has been done in the calculation phase.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at nokia.com>
---
 sound/soc/codecs/tlv320dac33.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index 520377b..b101cbd 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -889,6 +889,10 @@ static void dac33_calculate_times(struct snd_pcm_substream *substream)
 	struct tlv320dac33_priv *dac33 = snd_soc_codec_get_drvdata(codec);
 	unsigned int nsample_limit;
 
+	/* In bypass mode we don't need to calculate */
+	if (!dac33->fifo_mode)
+		return;
+
 	/* Number of samples (16bit, stereo) in one period */
 	dac33->nsample_min = snd_pcm_lib_period_bytes(substream) / 4;
 
@@ -1244,6 +1248,7 @@ static int __devinit dac33_i2c_probe(struct i2c_client *client,
 	dac33->keep_bclk = pdata->keep_bclk;
 	dac33->irq = client->irq;
 	dac33->nsample = NSAMPLE_MAX;
+	dac33->nsample_max = NSAMPLE_MAX;
 	/* Disable FIFO use by default */
 	dac33->fifo_mode = DAC33_FIFO_BYPASS;
 
-- 
1.7.0.4



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