rtc: simplified /proc/driver/rtc handling

This simplifies the RTC procfs support by removing the class_interface that
hooks it into the rtc core.  If it's configured, then sysfs support is now
part of the RTC core, and is never a separate module.

It also removes the class_interface hook, now that its last remaining user is
gone.  (That API is usable only with a "struct class_device".)

It's another step towards being able to remove "struct class_device".

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-By: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 7 deletions

diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 5845e6e9b579..9230001bd591 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -90,6 +90,7 @@ struct rtc_device *rtc_device_register(const char *name, struct device *dev,
 
         rtc_dev_add_device(rtc);
         rtc_sysfs_add_device(rtc);
+        rtc_proc_add_device(rtc);
 
         dev_info(dev, "rtc core: registered %s as %s\n",
                         rtc->name, rtc->class_dev.class_id);
@@ -126,6 +127,7 @@ void rtc_device_unregister(struct rtc_device *rtc)
                  */
                 rtc_sysfs_del_device(rtc);
                 rtc_dev_del_device(rtc);
+                rtc_proc_del_device(rtc);
                 class_device_unregister(&rtc->class_dev);
                 rtc->ops = NULL;
                 mutex_unlock(&rtc->ops_lock);
@@ -134,13 +136,6 @@ void rtc_device_unregister(struct rtc_device *rtc)
 }
 EXPORT_SYMBOL_GPL(rtc_device_unregister);
 
-int rtc_interface_register(struct class_interface *intf)
-{
-        intf->class = rtc_class;
-        return class_interface_register(intf);
-}
-EXPORT_SYMBOL_GPL(rtc_interface_register);
-
 static int __init rtc_init(void)
 {
         rtc_class = class_create(THIS_MODULE, "rtc");