ASoC: wm8994: We don't need to runtime resume by default

This is the default state that the runtime PM infrastructure expects so
instead just kick the runtime PM core to suspend us if we're not doing
anything (as is default).

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 9bb8192..6b12f5d 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -3387,7 +3387,7 @@
 				     WM8994_IRQ_MIC1_DET;
 
 	pm_runtime_enable(codec->dev);
-	pm_runtime_resume(codec->dev);
+	pm_runtime_idle(codec->dev);
 
 	/* By default use idle_bias_off, will override for WM8994 */
 	codec->dapm.idle_bias_off = 1;