From 7d9f99eccc8f94ace31030a2a7ff73cf5f8c12a0 Mon Sep 17 00:00:00 2001 From: David Brownell Date: Tue, 8 May 2007 00:33:38 -0700 Subject: 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 Acked-by: Greg Kroah-Hartman Acked-By: Alessandro Zummo Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/rtc/rtc-proc.c | 51 ++++---------------------------------------------- 1 file changed, 4 insertions(+), 47 deletions(-) (limited to 'drivers/rtc/rtc-proc.c') diff --git a/drivers/rtc/rtc-proc.c b/drivers/rtc/rtc-proc.c index 195be65..3d7f454 100644 --- a/drivers/rtc/rtc-proc.c +++ b/drivers/rtc/rtc-proc.c @@ -19,9 +19,6 @@ #include "rtc-core.h" -static struct class_device *rtc_dev = NULL; -static DEFINE_MUTEX(rtc_lock); - static int rtc_proc_show(struct seq_file *seq, void *offset) { int err; @@ -106,62 +103,22 @@ static const struct file_operations rtc_proc_fops = { .release = rtc_proc_release, }; -static int rtc_proc_add_device(struct class_device *class_dev, - struct class_interface *class_intf) +void rtc_proc_add_device(struct rtc_device *rtc) { - mutex_lock(&rtc_lock); - if (rtc_dev == NULL) { + if (rtc->id == 0) { struct proc_dir_entry *ent; - rtc_dev = class_dev; - ent = create_proc_entry("driver/rtc", 0, NULL); if (ent) { - struct rtc_device *rtc = to_rtc_device(class_dev); - ent->proc_fops = &rtc_proc_fops; ent->owner = rtc->owner; ent->data = rtc; - - dev_dbg(class_dev->dev, "rtc intf: proc\n"); } - else - rtc_dev = NULL; } - mutex_unlock(&rtc_lock); - - return 0; } -static void rtc_proc_remove_device(struct class_device *class_dev, - struct class_interface *class_intf) +void rtc_proc_del_device(struct rtc_device *rtc) { - mutex_lock(&rtc_lock); - if (rtc_dev == class_dev) { + if (rtc->id == 0) remove_proc_entry("driver/rtc", NULL); - rtc_dev = NULL; - } - mutex_unlock(&rtc_lock); -} - -static struct class_interface rtc_proc_interface = { - .add = &rtc_proc_add_device, - .remove = &rtc_proc_remove_device, -}; - -static int __init rtc_proc_init(void) -{ - return rtc_interface_register(&rtc_proc_interface); } - -static void __exit rtc_proc_exit(void) -{ - class_interface_unregister(&rtc_proc_interface); -} - -subsys_initcall(rtc_proc_init); -module_exit(rtc_proc_exit); - -MODULE_AUTHOR("Alessandro Zummo "); -MODULE_DESCRIPTION("RTC class proc interface"); -MODULE_LICENSE("GPL"); -- cgit v1.1