[alsa-devel] [RFC 02/11] ALSA: hda - Add generic helper function to register/unregister driver

[Subhransu S. Prusty]

From: Jeeja KP <jeeja.kp at intel.com>

ASOC HD codec drivers will use the generic functions
to register/unregister driver

Signed-off-by: Jeeja KP <jeeja.kp at intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty at intel.com>
Signed-off-by: Vinod Koul <vinod.koul at intel.com>
---
 include/sound/hdaudio.h |  3 +++
 sound/hda/hdac_bus.c    | 21 +++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 3628a09..b63cd03 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -153,6 +153,9 @@ struct hdac_driver {
 
 #define drv_to_hdac_driver(_drv) container_of(_drv, struct hdac_driver, driver)
 
+int snd_hdac_driver_register(struct hdac_driver *drv);
+void snd_hdac_driver_unregister(struct hdac_driver *drv);
+
 /*
  * HD-audio bus base driver
  */
diff --git a/sound/hda/hdac_bus.c b/sound/hda/hdac_bus.c
index f0ee295..4ecb4ec 100644
--- a/sound/hda/hdac_bus.c
+++ b/sound/hda/hdac_bus.c
@@ -219,3 +219,24 @@ int snd_hdac_bus_match_id(struct hdac_device *dev,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_hdac_bus_match_id);
+
+/**
+ * snd_hdac_driver_register - register a driver for hda devices
+ * @drv: hdac driver structure
+ */
+int snd_hdac_driver_register(struct hdac_driver *drv)
+{
+	drv->driver.bus = &snd_hda_bus_type;
+	return driver_register(&drv->driver);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_driver_register);
+
+/**
+ * snd_hdac_driver_unregister - unregister a driver for hda devices
+ * @drv: hdac driver structure
+ */
+void snd_hdac_driver_unregister(struct hdac_driver *drv)
+{
+	driver_unregister(&drv->driver);
+}
+EXPORT_SYMBOL_GPL(snd_hdac_driver_unregister);
-- 
1.9.0