ASoC: arizona: Add delay after powering up line level outputs

Ensure that the outputs are fully enabled before we begin passing audio
through them.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index abdd019c5b6e..389f23253831 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -579,6 +579,24 @@ int arizona_out_ev(struct snd_soc_dapm_widget *w,
                    struct snd_kcontrol *kcontrol,
                    int event)
 {
+        switch (event) {
+        case SND_SOC_DAPM_POST_PMU:
+                switch (w->shift) {
+                case ARIZONA_OUT1L_ENA_SHIFT:
+                case ARIZONA_OUT1R_ENA_SHIFT:
+                case ARIZONA_OUT2L_ENA_SHIFT:
+                case ARIZONA_OUT2R_ENA_SHIFT:
+                case ARIZONA_OUT3L_ENA_SHIFT:
+                case ARIZONA_OUT3R_ENA_SHIFT:
+                        msleep(17);
+                        break;
+
+                default:
+                        break;
+                }
+                break;
+        }
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(arizona_out_ev);