[alsa-devel] [PATCH 5/5] ASoC: Add a late_probe() callback to cards

[Mark Brown]

This is run after the DAPM widgets and routes are added, allowing setup
of things like jacks using the routes. The main card probe() is run before
anything else so can't be used for this purpose.

Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
 include/sound/soc.h  |    1 +
 sound/soc/soc-core.c |    9 +++++++++
 2 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 601c41e..a23f5a5 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -683,6 +683,7 @@ struct snd_soc_card {
 	bool instantiated;
 
 	int (*probe)(struct snd_soc_card *card);
+	int (*late_probe)(struct snd_soc_card *card);
 	int (*remove)(struct snd_soc_card *card);
 
 	/* the pre and post PM functions are used to do any PM work before and
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 6a2839c..8926d38 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1892,6 +1892,15 @@ static void snd_soc_instantiate_card(struct snd_soc_card *card)
 	snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
 		 "%s", card->name);
 
+	if (card->late_probe) {
+		ret = card->late_probe(card);
+		if (ret < 0) {
+			dev_err(card->dev, "%s late_probe() failed: %d\n",
+				card->name, ret);
+			goto probe_aux_dev_err;
+		}
+	}
+
 	ret = snd_card_register(card->snd_card);
 	if (ret < 0) {
 		printk(KERN_ERR "asoc: failed to register soundcard for %s\n", card->name);
-- 
1.7.2.3