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Diffstat (limited to 'sound/soc/generic/simple-card.c')
-rw-r--r--sound/soc/generic/simple-card.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index b63860ddb4fd..e0abe772c040 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -185,6 +185,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
char *prefix = "";
int ret, cpu_args;
+ /* For single DAI link & old style of DT node */
if (is_top_level_node)
prefix = "simple-audio-card,";
@@ -318,14 +319,16 @@ dai_link_of_err:
static int asoc_simple_card_parse_of(struct device_node *node,
struct simple_card_data *priv,
- struct device *dev,
- int multi)
+ struct device *dev)
{
struct snd_soc_dai_link *dai_link = priv->snd_card.dai_link;
struct simple_dai_props *dai_props = priv->dai_props;
u32 val;
int ret;
+ if (!node)
+ return -EINVAL;
+
/* parsing the card name from DT */
snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name");
@@ -353,7 +356,8 @@ static int asoc_simple_card_parse_of(struct device_node *node,
dev_dbg(dev, "New simple-card: %s\n", priv->snd_card.name ?
priv->snd_card.name : "");
- if (multi) {
+ /* Single/Muti DAI link(s) & New style of DT node */
+ if (of_get_child_by_name(node, "simple-audio-card,dai-link")) {
struct device_node *np = NULL;
int i = 0;
@@ -370,6 +374,7 @@ static int asoc_simple_card_parse_of(struct device_node *node,
i++;
}
} else {
+ /* For single DAI link & old style of DT node */
ret = asoc_simple_card_dai_link_of(node, dev,
dai_link, dai_props, true);
if (ret < 0)
@@ -409,16 +414,13 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
struct snd_soc_dai_link *dai_link;
struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
- int num_links, multi, ret;
+ int num_links, ret;
/* get the number of DAI links */
- if (np && of_get_child_by_name(np, "simple-audio-card,dai-link")) {
+ if (np && of_get_child_by_name(np, "simple-audio-card,dai-link"))
num_links = of_get_child_count(np);
- multi = 1;
- } else {
+ else
num_links = 1;
- multi = 0;
- }
/* allocate the private data and the DAI link array */
priv = devm_kzalloc(dev,
@@ -445,7 +447,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
if (np && of_device_is_available(np)) {
- ret = asoc_simple_card_parse_of(np, priv, dev, multi);
+ ret = asoc_simple_card_parse_of(np, priv, dev);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(dev, "parse error %d\n", ret);
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