ASoC: Make pmdown_time a per-card setting

Make the pmdown_time a per-card setting rather than a global one,
initialised before the card initialisation runs. This allows cards
to override the default setting if it makes sense to do so (for
example, due to an unavoidable pop).

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index ca89c78..94b9cde 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -542,7 +542,7 @@
 		/* start delayed pop wq here for playback streams */
 		codec_dai->pop_wait = 1;
 		schedule_delayed_work(&card->delayed_work,
-			msecs_to_jiffies(pmdown_time));
+			msecs_to_jiffies(card->pmdown_time));
 	} else {
 		/* capture streams can be powered down now */
 		snd_soc_dapm_stream_event(codec,
@@ -1039,6 +1039,8 @@
 	dev_dbg(card->dev, "All components present, instantiating\n");
 
 	/* Found everything, bring it up */
+	card->pmdown_time = pmdown_time;
+
 	if (card->probe) {
 		ret = card->probe(pdev);
 		if (ret < 0)