[PATCH] ASoC: simple-card: Add snd_card's name parsing from DT node support

[Xiubo Li <Li.Xiubo@freescale.com>]

If the DT is used and the CPU DAI device has only one DAI, the card
name will be like :

ALSA device list:
	0: 40031000.sai-sgtl5000

And this name maybe a little ugly to some customers, so here the
card name parsing from DT node is supported.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
---
 sound/soc/generic/simple-card   | 0
 sound/soc/generic/simple-card.  | 0
 sound/soc/generic/simple-card.c | 7 ++++++-
 3 files changed, 6 insertions(+), 1 deletion(-)
 create mode 100644 sound/soc/generic/simple-card
 create mode 100644 sound/soc/generic/simple-card.

diff --git a/sound/soc/generic/simple-card b/sound/soc/generic/simple-card
new file mode 100644
index 0000000..e69de29
diff --git a/sound/soc/generic/simple-card. b/sound/soc/generic/simple-card.
new file mode 100644
index 0000000..e69de29
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 0e2fbdd..b40b57c 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -143,6 +143,10 @@ static int asoc_simple_card_parse_of(struct device_node *node,
 			return ret;
 	}
 
+	/* parsing the card name from DT */
+	snd_soc_of_parse_card_name(&info->snd_card,
+					"simple-audio-card,name");
+
 	/* CPU sub-node */
 	ret = -EINVAL;
 	np = of_get_child_by_name(node, "simple-audio-card,cpu");
@@ -257,7 +261,8 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
 	/*
 	 * init snd_soc_card
 	 */
-	cinfo->snd_card.name		= cinfo->card;
+	if (!cinfo->snd_card.name)
+		cinfo->snd_card.name = cinfo->card;
 	cinfo->snd_card.owner		= THIS_MODULE;
 	cinfo->snd_card.dai_link	= &cinfo->snd_link;
 	cinfo->snd_card.num_links	= 1;
-- 
1.8.4