diff options
Diffstat (limited to 'sound/soc/soc-core.c')
| -rw-r--r-- | sound/soc/soc-core.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 014ac10267da..711bd362028d 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -4590,6 +4590,41 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np, } EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt); +int snd_soc_of_get_dai_name(struct device_node *of_node, + const char **dai_name) +{ + struct snd_soc_component *pos; + struct of_phandle_args args; + int ret; + + ret = of_parse_phandle_with_args(of_node, "sound-dai", + "#sound-dai-cells", 0, &args); + if (ret) + return ret; + + ret = -EPROBE_DEFER; + + mutex_lock(&client_mutex); + list_for_each_entry(pos, &component_list, list) { + if (pos->dev->of_node != args.np) + continue; + + if (!pos->driver->of_xlate_dai_name) { + ret = -ENOSYS; + break; + } + + ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name); + break; + } + mutex_unlock(&client_mutex); + + of_node_put(args.np); + + return ret; +} +EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name); + static int __init snd_soc_init(void) { #ifdef CONFIG_DEBUG_FS |