ASoC: dapm: Fix _PRE and _POST events for DAPM performance improvements

Ever since the DAPM performance improvements we've been marking all widgets
as not dirty after each DAPM run. Since _PRE and _POST events aren't part
of the DAPM graph this has rendered them non-functional, they will never be
marked dirty again and thus will never be run again.

Fix this by skipping them when marking widgets as not dirty.

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

1 files changed, 9 insertions, 1 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index f7a13f720529..025060b26fb7 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1598,7 +1598,15 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
         }
 
         list_for_each_entry(w, &card->widgets, list) {
-                list_del_init(&w->dirty);
+                switch (w->id) {
+                case snd_soc_dapm_pre:
+                case snd_soc_dapm_post:
+                        /* These widgets always need to be powered */
+                        break;
+                default:
+                        list_del_init(&w->dirty);
+                        break;
+                }
 
                 if (w->power) {
                         d = w->dapm;