diff options
| author | Peter Ujfalusi <peter.ujfalusi@nokia.com> | 2010-10-29 09:49:37 +0300 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2010-10-30 17:33:38 +0100 |
| commit | 1bc13b2e3518ff7856924d7c2bdf06196f605260 (patch) | |
| tree | b9dd84bb34c62cac8bb954bf8b366ad81fb48a59 /sound | |
| parent | d54e1f4fdf4cf9754b7220ae4cb66dcae0fc1702 (diff) | |
| download | lwn-1bc13b2e3518ff7856924d7c2bdf06196f605260.tar.gz lwn-1bc13b2e3518ff7856924d7c2bdf06196f605260.zip | |
ASoC: tlv320dac33: Mode1 FIFO auto configuration fix
Do not allow invalid (too big) nSample value, when FIFO Mode1
and automatic fifo configuration has been selected.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/tlv320dac33.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c index c47c20d21ea5..c5ab8c805771 100644 --- a/sound/soc/codecs/tlv320dac33.c +++ b/sound/soc/codecs/tlv320dac33.c @@ -1082,6 +1082,9 @@ static void dac33_calculate_times(struct snd_pcm_substream *substream) /* Number of samples under i2c latency */ dac33->alarm_threshold = US_TO_SAMPLES(rate, dac33->mode1_latency); + nsample_limit = DAC33_BUFFER_SIZE_SAMPLES - + dac33->alarm_threshold; + if (dac33->auto_fifo_config) { if (period_size <= dac33->alarm_threshold) /* @@ -1092,6 +1095,8 @@ static void dac33_calculate_times(struct snd_pcm_substream *substream) ((dac33->alarm_threshold / period_size) + (dac33->alarm_threshold % period_size ? 1 : 0)); + else if (period_size > nsample_limit) + dac33->nsample = nsample_limit; else dac33->nsample = period_size; } else { @@ -1103,8 +1108,7 @@ static void dac33_calculate_times(struct snd_pcm_substream *substream) */ dac33->nsample_max = substream->runtime->buffer_size - period_size; - nsample_limit = DAC33_BUFFER_SIZE_SAMPLES - - dac33->alarm_threshold; + if (dac33->nsample_max > nsample_limit) dac33->nsample_max = nsample_limit; |