[LTSI-3.14,528/894] ASoC: simple-card: Add snd_card's name parsing from DT node support

Commit Message

Simon Horman Aug. 28, 2014, 7 a.m. UTC

From: Xiubo Li <[e-mail]>

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 <[e-mail]>
Signed-off-by: Mark Brown <[e-mail]>
(cherry picked from commit 2772555b6c5ba79783c04ea6c60549530d737e2e)
Signed-off-by: Simon Horman <[e-mail]>
---
 sound/soc/generic/simple-card.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Patch

diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 65833fe..0890fcd 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -143,6 +143,9 @@  static int asoc_simple_card_parse_of(struct device_node *node,
 	char *name;
 	int ret;
 
+	/* parsing the card name from DT */
+	snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name");
+
 	/* get CPU/CODEC common format via simple-audio-card,format */
 	priv->daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,") &
 		(SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK);
@@ -187,7 +190,8 @@  static int asoc_simple_card_parse_of(struct device_node *node,
 			    GFP_KERNEL);
 	sprintf(name, "%s-%s", dai_link->cpu_dai_name,
 				dai_link->codec_dai_name);
-	priv->snd_card.name = name;
+	if (!priv->snd_card.name)
+		priv->snd_card.name = name;
 	dai_link->name = dai_link->stream_name = name;
 
 	/* simple-card assumes platform == cpu */