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ASoC: tlv320dac33: Lower the OSC calibration time

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

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>
Peter Ujfalusi 14 years ago
parent
commit
82a58a8b7f
1 changed files with 2 additions and 2 deletions
  1. 2 2
      sound/soc/codecs/tlv320dac33.c

+ 2 - 2
sound/soc/codecs/tlv320dac33.c

@@ -939,8 +939,8 @@ 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) |