[ALSA] soc - Add device level DAPM event

Added a device level dapm event so that both the machine and codec are informed
when dapm events occur.

Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 23 insertions, 0 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 3b8f94af7e27..16ebb60ed3d4 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1279,6 +1279,29 @@ int snd_soc_dapm_stream_event(struct snd_soc_codec *codec,
 EXPORT_SYMBOL_GPL(snd_soc_dapm_stream_event);
 
 /**
+ * snd_soc_dapm_device_event - send a device event to the dapm core
+ * @socdev: audio device
+ * @event: device event
+ *
+ * Sends a device event to the dapm core. The core then makes any
+ * necessary machine or codec power changes..
+ *
+ * Returns 0 for success else error.
+ */
+int snd_soc_dapm_device_event(struct snd_soc_device *socdev, int event)
+{
+        struct snd_soc_codec *codec = socdev->codec;
+        struct snd_soc_machine *machine = socdev->machine;
+
+        if (machine->dapm_event)
+                                machine->dapm_event(machine, event);
+        if (codec->dapm_event)
+                                codec->dapm_event(codec, event);
+        return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_device_event);
+
+/**
  * snd_soc_dapm_set_endpoint - set audio endpoint status
  * @codec: audio codec
  * @endpoint: audio signal endpoint (or start point)