summaryrefslogtreecommitdiffstats
path: root/sound/soc
diff options
context:
space:
mode:
authorPadmavathi Venna <padma.v@samsung.com>2013-01-18 12:47:06 +0100
committerMark Brown <broonie@opensource.wolfsonmicro.com>2013-01-29 08:36:28 +0100
commit28a480583361b8e67b0a7f4898180725b71cceec (patch)
treeb0f6434f93599ed86f264153854b3962e17b795b /sound/soc
parentARM: EXYNOS: Enable platform support for I2S controllers (diff)
downloadlinux-28a480583361b8e67b0a7f4898180725b71cceec.tar.xz
linux-28a480583361b8e67b0a7f4898180725b71cceec.zip
ASoC: SMDK: WM8994: Add device tree support for machine file
Add the basic device tree based lookup. Signed-off-by: Padmavathi Venna <padma.v@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
-rw-r--r--sound/soc/samsung/smdk_wm8994.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
index cc2f407e9f1b..581ea4a06fc6 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 +154,25 @@ static struct snd_soc_card smdk = {
static int 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;
+ }
+
+ smdk_dai[0].platform_name = NULL;
+ smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node;
+ }
+
ret = snd_soc_register_card(card);
if (ret)
@@ -173,10 +190,19 @@ static int 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 = smdk_audio_remove,