path: root/sound
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authorMark Brown <broonie@opensource.wolfsonmicro.com>2010-03-29 16:34:42 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2010-04-05 16:19:29 +0100
commitae9d8607fe24253efc9f14b696f51cfd683801be (patch)
treed9743eee3b7219d011d333cdbff93bda73cfe68c /sound
parent8437f7006b9cfa249791e2fd57596683d4561843 (diff)
ASoC: Don't do runtime wm_hubs DC servo updates if using offset correction
If we need to offset correct the DC servo then don't use runtime recalibration since that is likely to introduce further offsets which will be evident on powerdown. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'sound')
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index 2b5c0924f61..e81ba6d2d7c 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -162,10 +162,16 @@ static int wm8993_put_dc_servo(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ struct wm_hubs_data *hubs = codec->private_data;
int ret;
ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
+ /* If we're applying an offset correction then updating the
+ * callibration would be likely to introduce further offsets. */
+ if (hubs->dcs_codes)
+ return ret;
/* Only need to do this if the outputs are active */
if (snd_soc_read(codec, WM8993_POWER_MANAGEMENT_1)
& (WM8993_HPOUT1L_ENA | WM8993_HPOUT1R_ENA))