[alsa-devel] [PATCH] ASoC: tlv320dac33: Lower the OSC calibration time

[Peter Ujfalusi]

To get correct calibration, we can decrease the time
needed for the OSC to calibrate itself.
With this change we can safe ~15ms in the OSC
calibration phase.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at nokia.com>
---
 sound/soc/codecs/tlv320dac33.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c
index c109f6d..401a7ce 100644
--- a/sound/soc/codecs/tlv320dac33.c
+++ b/sound/soc/codecs/tlv320dac33.c
@@ -946,8 +946,8 @@ static int dac33_prepare_chip(struct snd_pcm_substream *substream)
 	/* Write registers 0x08 and 0x09 (MSB, LSB) */
 	dac33_write16(codec, DAC33_INT_OSC_FREQ_RAT_A, oscset);
 
-	/* calib time: 128 is a nice number ;) */
-	dac33_write(codec, DAC33_CALIB_TIME, 128);
+	/* OSC calibration time */
+	dac33_write(codec, DAC33_CALIB_TIME, 96);
 
 	/* adjustment treshold & step */
 	dac33_write(codec, DAC33_INT_OSC_CTRL_B, DAC33_ADJTHRSHLD(2) |
-- 
1.7.4.1