diff options
| author | Padmavathi Venna <padma.v@samsung.com> | 2013-01-18 17:17:06 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-01-29 15:36:28 +0800 |
| commit | 28a480583361b8e67b0a7f4898180725b71cceec (patch) | |
| tree | b0f6434f93599ed86f264153854b3962e17b795b /sound/soc/samsung/smdk_wm8994.c | |
| parent | 99b97fdccbde9860366ec00bd61f2622055f1b86 (diff) | |
| download | lwn-28a480583361b8e67b0a7f4898180725b71cceec.tar.gz lwn-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/samsung/smdk_wm8994.c')
| -rw-r--r-- | sound/soc/samsung/smdk_wm8994.c | 26 |
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, |