diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-10-27 13:48:36 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-10-28 11:34:03 -0700 |
| commit | fec6dd833e733b5d9588a1f1e4d81118b79b5774 (patch) | |
| tree | fd321d8252fa61dd6df15166c41e262f4c8955ae /sound/soc/codecs/wm8993.c | |
| parent | d906401114861585c990ff0290c002b5d22fc71a (diff) | |
| download | linux-fec6dd833e733b5d9588a1f1e4d81118b79b5774.tar.bz2 | |
ASoC: Store DC offset correction for wm_hubs devices in class W mode
Providing the analogue configuration of the output path remains the same
the DC offset corrected by the DC servo will remain identical so we can
skip the callibration, reducing the startup time for the headphone output.
Implement this for the wm_hubs devices as has been done for several other
CODECs.
Don't do this if we have any analogue paths enabled since offsets may be
being introduced by the analogue paths which could vary outside the
control of the driver.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound/soc/codecs/wm8993.c')
| -rw-r--r-- | sound/soc/codecs/wm8993.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8993.c b/sound/soc/codecs/wm8993.c index 589e3fa24734..67fe5ccc6082 100644 --- a/sound/soc/codecs/wm8993.c +++ b/sound/soc/codecs/wm8993.c @@ -735,6 +735,7 @@ static int class_w_put(struct snd_kcontrol *kcontrol, 0); } wm8993->class_w_users++; + wm8993->hubs_data.class_w = true; } /* Implement the change */ @@ -751,6 +752,7 @@ static int class_w_put(struct snd_kcontrol *kcontrol, WM8993_CP_DYN_V); } wm8993->class_w_users--; + wm8993->hubs_data.class_w = false; } dev_dbg(codec->dev, "Indirect DAC use count now %d\n", |