ASoC: Allow idle_bias_off to be specified in CODEC drivers

If devices can unconditionally support idle_bias_off let them flag it in
their driver structure.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

2 files changed, 3 insertions, 0 deletions

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 3fe658eea28b..6da55a17fcfd 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -633,6 +633,7 @@ struct snd_soc_codec_driver {
         /* codec bias level */
         int (*set_bias_level)(struct snd_soc_codec *,
                               enum snd_soc_bias_level level);
+        bool idle_bias_off;
 
         void (*seq_notifier)(struct snd_soc_dapm_context *,
                              enum snd_soc_dapm_type, int);
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index ae93aa81244c..f8f985a4f2a8 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -956,6 +956,8 @@ static int soc_probe_codec(struct snd_soc_card *card,
                 snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets,
                                           driver->num_dapm_widgets);
 
+        codec->dapm.idle_bias_off = driver->idle_bias_off;
+
         if (driver->probe) {
                 ret = driver->probe(codec);
                 if (ret < 0) {