From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Fri, 20 Jul 2012 16:29:34 +0000 (+0100)
Subject: ASoC: dapm: Fix _PRE and _POST events for DAPM performance improvements
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0ff97ebf0804d2e519d578fcb4db03f104d2ca8c;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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
---

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;