From 82a58a8b7f293e5bab3dd41ee160867bcad41f37 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 12 Apr 2011 09:09:17 +0300 Subject: [PATCH] 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 Acked-by: Mark Brown Signed-off-by: Liam Girdwood --- sound/soc/codecs/tlv320dac33.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/tlv320dac33.c b/sound/soc/codecs/tlv320dac33.c index 4857f2a..869c1a9 100644 --- a/sound/soc/codecs/tlv320dac33.c +++ b/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) | -- 2.7.4