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>
diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index 2b5c092..e81ba6d 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -162,10 +162,16 @@
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))