ASoC v2 allows platform drivers to instantiate independantly of the
overall ASoC card. This API allows drivers to notify the core when
they are registered.
Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
include/sound/soc.h | 5 +++++
sound/soc/soc-core.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 4a578b5..ce3661d 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -149,6 +149,7 @@ struct snd_soc_ops;
struct snd_soc_dai_mode;
struct snd_soc_pcm_runtime;
struct snd_soc_dai;
+struct snd_soc_platform;
struct snd_soc_codec;
struct soc_enum;
struct snd_soc_ac97_ops;
@@ -158,6 +159,9 @@ typedef int (*hw_read_t)(void *,char* ,int);
extern struct snd_ac97_bus_ops soc_ac97_ops;
+int snd_soc_register_platform(struct snd_soc_platform *platform);
+void snd_soc_unregister_platform(struct snd_soc_platform *platform);
+
/* pcm <-> DAI connect */
void snd_soc_free_pcms(struct snd_soc_device *socdev);
int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid);
@@ -296,6 +300,7 @@ struct snd_soc_codec_device {
/* SoC platform interface */
struct snd_soc_platform {
char *name;
+ struct list_head list;
int (*probe)(struct platform_device *pdev);
int (*remove)(struct platform_device *pdev);
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 03460b0..ffae370 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -46,6 +46,7 @@ static struct dentry *debugfs_root;
static DEFINE_MUTEX(client_mutex);
static LIST_HEAD(card_list);
static LIST_HEAD(dai_list);
+static LIST_HEAD(platform_list);
static int snd_soc_register_card(struct snd_soc_card *card);
static int snd_soc_unregister_card(struct snd_soc_card *card);
@@ -2102,6 +2103,43 @@ void snd_soc_unregister_dais(struct snd_soc_dai *dai, size_t count)
}
EXPORT_SYMBOL_GPL(snd_soc_unregister_dais);
+/**
+ * snd_soc_register_platform - Register a platform with the ASoC core
+ *
+ * @param platform platform to register
+ */
+int snd_soc_register_platform(struct snd_soc_platform *platform)
+{
+ if (!platform->name)
+ return -EINVAL;
+
+ INIT_LIST_HEAD(&platform->list);
+
+ mutex_lock(&client_mutex);
+ list_add(&platform->list, &platform_list);
+ mutex_unlock(&client_mutex);
+
+ pr_debug("Registered platform '%s'\n", platform->name);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_register_platform);
+
+/**
+ * snd_soc_unregister_platform - Unregister a platform from the ASoC core
+ *
+ * @param platform platform to unregister
+ */
+void snd_soc_unregister_platform(struct snd_soc_platform *platform)
+{
+ mutex_lock(&client_mutex);
+ list_del(&platform->list);
+ mutex_unlock(&client_mutex);
+
+ pr_debug("Unregistered platform '%s'\n", platform->name);
+}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
+
static int __devinit snd_soc_init(void)
{
#ifdef CONFIG_DEBUG_FS
--
1.5.6.5
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