ASoC: Add pop delay debug at end of DAPM sequencing

Provide an interval after the end of DAPM sequencing so that we
can distinguish between a pop in the final step of the sequence
and a pop generated from some other source outside DAPM.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 5157ec1..a40594f 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -997,6 +997,9 @@
 			pr_err("Failed to apply active bias: %d\n", ret);
 	}
 
+	pop_dbg(codec->pop_time, "DAPM sequencing finished, waiting %dms\n",
+		codec->pop_time);
+
 	return 0;
 }