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Commit ae9d8607 authored by Mark Brown's avatar Mark Brown
Browse files

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: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@slimlogic.co.uk>
parent 8437f700

sound/soc/codecs/wm_hubs.c

+6 −0
Original line number Diff line number Diff line
@@ -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))