diff options
| author | David Brownell <david-b@pacbell.net> | 2007-05-08 00:34:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:15:18 -0700 |
| commit | f5f72b46c349fefcfd4421b2213c6ffb324c5e56 (patch) | |
| tree | 9ad2ac0eb4504399aad8f2a9a9e72ae8103e2e53 /drivers/acpi/sleep/proc.c | |
| parent | 87ac84f42a7a580d0dd72ae31d6a5eb4bfe04c6d (diff) | |
| download | lwn-f5f72b46c349fefcfd4421b2213c6ffb324c5e56.tar.gz lwn-f5f72b46c349fefcfd4421b2213c6ffb324c5e56.zip | |
ACPI wakeup hooks for rtc-cmos
Remove /proc/acpi/alarm file when the rtc-cmos "wakealarm" file is available.
Instead, provide hooks that rtc-cmos will use.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/acpi/sleep/proc.c')
| -rw-r--r-- | drivers/acpi/sleep/proc.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c index dcde9ddd105a..5a76e5be61d5 100644 --- a/drivers/acpi/sleep/proc.c +++ b/drivers/acpi/sleep/proc.c @@ -70,6 +70,14 @@ acpi_system_write_sleep(struct file *file, } #endif /* CONFIG_ACPI_SLEEP_PROC_SLEEP */ +#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) +/* use /sys/class/rtc/rtcX/wakealarm instead; it's not ACPI-specific */ +#else +#define HAVE_ACPI_LEGACY_ALARM +#endif + +#ifdef HAVE_ACPI_LEGACY_ALARM + static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset) { u32 sec, min, hr; @@ -341,6 +349,8 @@ acpi_system_write_alarm(struct file *file, end: return_VALUE(result ? result : count); } +#endif /* HAVE_ACPI_LEGACY_ALARM */ + extern struct list_head acpi_wakeup_device_list; extern spinlock_t acpi_device_lock; @@ -464,6 +474,7 @@ static const struct file_operations acpi_system_sleep_fops = { }; #endif /* CONFIG_ACPI_SLEEP_PROC_SLEEP */ +#ifdef HAVE_ACPI_LEGACY_ALARM static const struct file_operations acpi_system_alarm_fops = { .open = acpi_system_alarm_open_fs, .read = seq_read, @@ -479,8 +490,9 @@ static u32 rtc_handler(void *context) return ACPI_INTERRUPT_HANDLED; } +#endif /* HAVE_ACPI_LEGACY_ALARM */ -static int acpi_sleep_proc_init(void) +static int __init acpi_sleep_proc_init(void) { struct proc_dir_entry *entry = NULL; @@ -496,6 +508,7 @@ static int acpi_sleep_proc_init(void) entry->proc_fops = &acpi_system_sleep_fops; #endif +#ifdef HAVE_ACPI_LEGACY_ALARM /* 'alarm' [R/W] */ entry = create_proc_entry("alarm", S_IFREG | S_IRUGO | S_IWUSR, @@ -503,6 +516,9 @@ static int acpi_sleep_proc_init(void) if (entry) entry->proc_fops = &acpi_system_alarm_fops; + acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL); +#endif /* HAVE_ACPI_LEGACY_ALARM */ + /* 'wakeup device' [R/W] */ entry = create_proc_entry("wakeup", S_IFREG | S_IRUGO | S_IWUSR, @@ -510,7 +526,6 @@ static int acpi_sleep_proc_init(void) if (entry) entry->proc_fops = &acpi_system_wakeup_device_fops; - acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL); return 0; } |