diff options
| author | Eric Bénard <eric@eukrea.com> | 2010-06-19 21:33:39 +0400 |
|---|---|---|
| committer | Liam Girdwood <lrg@slimlogic.co.uk> | 2010-06-23 14:28:53 +0400 |
| commit | 3d5a4516238ff1da81f5c38a7ddd87127487c8ca (patch) | |
| tree | 2b507b262401178e63223c7b74857875eb9feebb /sound/soc/codecs/tlv320aic23.c | |
| parent | 4b94dba029887effd8675164e782cb12889668b1 (diff) | |
| download | linux-3d5a4516238ff1da81f5c38a7ddd87127487c8ca.tar.xz | |
codecs/tlv320aic23: fix bias management for suspend/resume
in tlv320aic23_set_bias_level, for the case SND_SOC_BIAS_ON, the
comment says "vref/mid, osc on, dac unmute" but the code doesn't
clear the corresponding bits, thus when resuming, several bits are
not cleared preventing the codec from working.
in tlv320aic23_suspend, clearing the active register is not needed
as it will be done by tlv320aic23_set_bias_level, when setting
bias to SND_SOC_BIAS_OFF
Signed-off-by: Eric Bénard <eric@eukrea.com>
Cc: broonie@opensource.wolfsonmicro.com
Cc: anuj.aggarwal@ti.com
Cc: lrg@slimlogic.co.uk
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc/codecs/tlv320aic23.c')
| -rw-r--r-- | sound/soc/codecs/tlv320aic23.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c index b0bae3508b29..0a4b0fef3355 100644 --- a/sound/soc/codecs/tlv320aic23.c +++ b/sound/soc/codecs/tlv320aic23.c @@ -560,13 +560,16 @@ static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec, switch (level) { case SND_SOC_BIAS_ON: /* vref/mid, osc on, dac unmute */ + reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \ + TLV320AIC23_DAC_OFF); tlv320aic23_write(codec, TLV320AIC23_PWR, reg); break; case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: /* everything off except vref/vmid, */ - tlv320aic23_write(codec, TLV320AIC23_PWR, reg | 0x0040); + tlv320aic23_write(codec, TLV320AIC23_PWR, reg | \ + TLV320AIC23_CLK_OFF); break; case SND_SOC_BIAS_OFF: /* everything off, dac mute, inactive */ @@ -615,7 +618,6 @@ static int tlv320aic23_suspend(struct platform_device *pdev, struct snd_soc_device *socdev = platform_get_drvdata(pdev); struct snd_soc_codec *codec = socdev->card->codec; - tlv320aic23_write(codec, TLV320AIC23_ACTIVE, 0x0); tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; @@ -632,7 +634,6 @@ static int tlv320aic23_resume(struct platform_device *pdev) u16 val = tlv320aic23_read_reg_cache(codec, reg); tlv320aic23_write(codec, reg, val); } - tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY); return 0; |