Add the basic device tree based lookup.
Signed-off-by: Padmavathi Venna <padma.v@xxxxxxxxxxx>
---
sound/soc/samsung/smdk_wm8994.c | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
index 48dd4dd..f9ba2b9 100644
--- a/sound/soc/samsung/smdk_wm8994.c
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -10,6 +10,7 @@
#include "../codecs/wm8994.h"
#include <sound/pcm_params.h>
#include <linux/module.h>
+#include <linux/of.h>
/*
* Default CFG switch settings to use this driver:
@@ -153,9 +154,22 @@ static struct snd_soc_card smdk = {
static int __devinit smdk_audio_probe(struct platform_device *pdev)
{
int ret;
+ struct device_node *np = pdev->dev.of_node;
struct snd_soc_card *card = &smdk;
card->dev = &pdev->dev;
+
+ if (np) {
+ smdk_dai[0].cpu_dai_name = NULL;
+ smdk_dai[0].cpu_of_node = of_parse_phandle(np,
+ "samsung,i2s-controller", 0);
+ if (!smdk_dai[0].cpu_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'samsung,i2s-controller' missing or invalid\n");
+ ret = -EINVAL;
+ }
+ }
+
ret = snd_soc_register_card(card);
if (ret)
@@ -173,10 +187,19 @@ static int __devexit smdk_audio_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id samsung_wm8994_of_match[] = {
+ { .compatible = "samsung,smdk-wm8994", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);
+#endif /* CONFIG_OF */
+
static struct platform_driver smdk_audio_driver = {
.driver = {
.name = "smdk-audio",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(samsung_wm8994_of_match),
},
.probe = smdk_audio_probe,
.remove = __devexit_p(smdk_audio_remove),
--
1.7.4.4
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