From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Thu, 16 Feb 2012 19:50:07 +0000 (-0800)
Subject: ASoC: dapm: Only mark pin widgets as dirty if we actually change state
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=1a8b2d9d5b6a9909ef0633990fb40c765a791692;p=openwrt%2Fstaging%2Fblogic.git

ASoC: dapm: Only mark pin widgets as dirty if we actually change state

Small optimisation for noop state updates.

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

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 86569044f662..c9b088dab1cf 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1927,10 +1927,12 @@ static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
 		return -EINVAL;
 	}
 
+	if (w->connected != status)
+		dapm_mark_dirty(w, "pin configuration");
+
 	w->connected = status;
 	if (status == 0)
 		w->force = 0;
-	dapm_mark_dirty(w, "pin configuration");
 
 	return 0;
 }