[alsa-devel] [PATCH 2/2] ASoC: Allow suppression of series updates on wm_hubs devices

[Mark Brown]

Some devices do not support manual updates of the DC servo.

Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm_hubs.c |    2 +-
 sound/soc/codecs/wm_hubs.h |    1 +
 2 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index 8042999..2d6c88b 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -194,7 +194,7 @@ static int wm8993_put_dc_servo(struct snd_kcontrol *kcontrol,
 
 	/* If we're applying an offset correction then updating the
 	 * callibration would be likely to introduce further offsets. */
-	if (hubs->dcs_codes)
+	if (hubs->dcs_codes || hubs->no_series_update)
 		return ret;
 
 	/* Only need to do this if the outputs are active */
diff --git a/sound/soc/codecs/wm_hubs.h b/sound/soc/codecs/wm_hubs.h
index aeb5871..0d290d2 100644
--- a/sound/soc/codecs/wm_hubs.h
+++ b/sound/soc/codecs/wm_hubs.h
@@ -24,6 +24,7 @@ struct wm_hubs_data {
 	int dcs_readback_mode;
 	int hp_startup_mode;
 	int series_startup;
+	int no_series_update;
 
 	bool class_w;
 	u16 class_w_dcs;
-- 
1.7.5.4