diff options
| author | Lionel.Xu <r63889@freescale.com> | 2009-04-22 15:44:06 +0800 |
|---|---|---|
| committer | Justin Waters <justin.waters@timesys.com> | 2009-10-13 11:02:46 -0400 |
| commit | 481f5f466d6d5db98dde672700a73aa36b20ad9d (patch) | |
| tree | c6e3cb41455d6e6950b7a61cd1deb61657e60e53 /sound | |
| parent | be214a8f0d7a4f3fdaacebcdd55630133a9b1bcc (diff) | |
ENGR00110748 SGTL5000: Shut down i2s sclk/lrclk after audio playback stops
Sgtl5000 sclk/lrclk should only be turned on when audio playback is running in
i2s master mode. These clocks should be turned off after playback to save the
power.
Signed-off-by: Lionel Xu <r63889@freescale.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/sgtl5000.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index 954784ab4b89..ed39df38d148 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -494,6 +494,10 @@ static void sgtl5000_pcm_shutdown(struct snd_pcm_substream *substream) reg = sgtl5000_read(codec, SGTL5000_CHIP_DIG_POWER); reg &= ~(SGTL5000_I2S_IN_POWERUP | SGTL5000_I2S_OUT_POWERUP); sgtl5000_write(codec, SGTL5000_CHIP_DIG_POWER, reg); + + reg = sgtl5000_read(codec, SGTL5000_CHIP_I2S_CTRL); + reg &= ~SGTL5000_I2S_MASTER; + sgtl5000_write(codec, SGTL5000_CHIP_I2S_CTRL, reg); } /* |