ALSA: hda - Use common reboot notifier
The very same notifier code is used in both hda_intel.c and
hda_tegra.c. Move it to the generic code.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c
index a562d86..8d9398a 100644
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
+#include <linux/reboot.h>
#include <sound/core.h>
#include <sound/initval.h>
#include "hda_priv.h"
@@ -1946,5 +1947,30 @@
}
EXPORT_SYMBOL_GPL(azx_init_stream);
+/*
+ * reboot notifier for hang-up problem at power-down
+ */
+static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
+{
+ struct azx *chip = container_of(nb, struct azx, reboot_notifier);
+ snd_hda_bus_reboot_notify(chip->bus);
+ azx_stop_chip(chip);
+ return NOTIFY_OK;
+}
+
+void azx_notifier_register(struct azx *chip)
+{
+ chip->reboot_notifier.notifier_call = azx_halt;
+ register_reboot_notifier(&chip->reboot_notifier);
+}
+EXPORT_SYMBOL_GPL(azx_notifier_register);
+
+void azx_notifier_unregister(struct azx *chip)
+{
+ if (chip->reboot_notifier.notifier_call)
+ unregister_reboot_notifier(&chip->reboot_notifier);
+}
+EXPORT_SYMBOL_GPL(azx_notifier_unregister);
+
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Common HDA driver funcitons");
diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h
index 91f0495..c90d10f 100644
--- a/sound/pci/hda/hda_controller.h
+++ b/sound/pci/hda/hda_controller.h
@@ -50,4 +50,7 @@
int azx_mixer_create(struct azx *chip);
int azx_init_stream(struct azx *chip);
+void azx_notifier_register(struct azx *chip);
+void azx_notifier_unregister(struct azx *chip);
+
#endif /* __SOUND_HDA_CONTROLLER_H */
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index bbb446a..1e971e2 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -44,7 +44,6 @@
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/mutex.h>
-#include <linux/reboot.h>
#include <linux/io.h>
#include <linux/pm_runtime.h>
#include <linux/clocksource.h>
@@ -952,29 +951,6 @@
#endif /* CONFIG_PM */
-/*
- * reboot notifier for hang-up problem at power-down
- */
-static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
-{
- struct azx *chip = container_of(nb, struct azx, reboot_notifier);
- snd_hda_bus_reboot_notify(chip->bus);
- azx_stop_chip(chip);
- return NOTIFY_OK;
-}
-
-static void azx_notifier_register(struct azx *chip)
-{
- chip->reboot_notifier.notifier_call = azx_halt;
- register_reboot_notifier(&chip->reboot_notifier);
-}
-
-static void azx_notifier_unregister(struct azx *chip)
-{
- if (chip->reboot_notifier.notifier_call)
- unregister_reboot_notifier(&chip->reboot_notifier);
-}
-
static int azx_probe_continue(struct azx *chip);
#ifdef SUPPORT_VGA_SWITCHEROO
diff --git a/sound/pci/hda/hda_tegra.c b/sound/pci/hda/hda_tegra.c
index 12920b9..cf69daf 100644
--- a/sound/pci/hda/hda_tegra.c
+++ b/sound/pci/hda/hda_tegra.c
@@ -29,7 +29,6 @@
#include <linux/moduleparam.h>
#include <linux/mutex.h>
#include <linux/of_device.h>
-#include <linux/reboot.h>
#include <linux/slab.h>
#include <linux/time.h>
@@ -295,30 +294,6 @@
};
/*
- * reboot notifier for hang-up problem at power-down
- */
-static int hda_tegra_halt(struct notifier_block *nb, unsigned long event,
- void *buf)
-{
- struct azx *chip = container_of(nb, struct azx, reboot_notifier);
- snd_hda_bus_reboot_notify(chip->bus);
- azx_stop_chip(chip);
- return NOTIFY_OK;
-}
-
-static void hda_tegra_notifier_register(struct azx *chip)
-{
- chip->reboot_notifier.notifier_call = hda_tegra_halt;
- register_reboot_notifier(&chip->reboot_notifier);
-}
-
-static void hda_tegra_notifier_unregister(struct azx *chip)
-{
- if (chip->reboot_notifier.notifier_call)
- unregister_reboot_notifier(&chip->reboot_notifier);
-}
-
-/*
* destructor
*/
static int hda_tegra_dev_free(struct snd_device *device)
@@ -326,7 +301,7 @@
int i;
struct azx *chip = device->device_data;
- hda_tegra_notifier_unregister(chip);
+ azx_notifier_unregister(chip);
if (chip->initialized) {
for (i = 0; i < chip->num_streams; i++)
@@ -557,7 +532,7 @@
chip->running = 1;
power_down_all_codecs(chip);
- hda_tegra_notifier_register(chip);
+ azx_notifier_register(chip);
return 0;