ASoC: core: add platform DAPM debugfs support
Allow platform widgets to be visible in debugfs like codec widgets.
Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 50b8b80..6bad7cd 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -300,6 +300,27 @@
debugfs_remove_recursive(codec->debugfs_codec_root);
}
+static void soc_init_platform_debugfs(struct snd_soc_platform *platform)
+{
+ struct dentry *debugfs_card_root = platform->card->debugfs_card_root;
+
+ platform->debugfs_platform_root = debugfs_create_dir(platform->name,
+ debugfs_card_root);
+ if (!platform->debugfs_platform_root) {
+ dev_warn(platform->dev,
+ "Failed to create platform debugfs directory\n");
+ return;
+ }
+
+ snd_soc_dapm_debugfs_init(&platform->dapm,
+ platform->debugfs_platform_root);
+}
+
+static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
+{
+ debugfs_remove_recursive(platform->debugfs_platform_root);
+}
+
static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
@@ -433,6 +454,14 @@
{
}
+static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform)
+{
+}
+
+static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
+{
+}
+
static inline void soc_init_card_debugfs(struct snd_soc_card *card)
{
}
@@ -920,6 +949,7 @@
/* Make sure all DAPM widgets are freed */
snd_soc_dapm_free(&platform->dapm);
+ soc_cleanup_platform_debugfs(platform);
platform->probed = 0;
list_del(&platform->card_list);
module_put(platform->dev->driver->owner);
@@ -1037,6 +1067,8 @@
if (!try_module_get(platform->dev->driver->owner))
return -ENODEV;
+ soc_init_platform_debugfs(platform);
+
if (driver->dapm_widgets)
snd_soc_dapm_new_controls(&platform->dapm,
driver->dapm_widgets, driver->num_dapm_widgets);