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ACPI: Make /proc/acpi/wakeup interface handle PCI devices (again) 

Make the ACPI /proc/acpi/wakeup interface set the appropriate wake-up bits
of physical devices corresponding to the ACPI devices and make those bits
be set initially for devices that are enabled to wake up by default.  This
is needed to restore the 2.6.26 and earlier behavior for the PCI devices
that were previously handled correctly with the help of the
/proc/acpi/wakeup interface.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Rafael J. Wysocki 2008-10-03 15:23:49 -07:00 committed by Linus Torvalds
parent 95bf14bff5
commit 76acae04c8
2 changed files with 14 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/acpi/glue.c
View File

@ -165,8 +165,11 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle)
"firmware_node");
ret = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
"physical_node");
if (acpi_dev->wakeup.flags.valid)
if (acpi_dev->wakeup.flags.valid) {
device_set_wakeup_capable(dev, true);
device_set_wakeup_enable(dev,
acpi_dev->wakeup.state.enabled);
}
}
return 0;

10
drivers/acpi/sleep/proc.c
View File

@ -377,6 +377,14 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
return 0;
}
static void physical_device_enable_wakeup(struct acpi_device *adev)
{
struct device *dev = acpi_get_physical_device(adev->handle);
if (dev && device_can_wakeup(dev))
device_set_wakeup_enable(dev, adev->wakeup.state.enabled);
}
static ssize_t
acpi_system_write_wakeup_device(struct file *file,
const char __user * buffer,
@ -411,6 +419,7 @@ acpi_system_write_wakeup_device(struct file *file,
}
}
if (found_dev) {
physical_device_enable_wakeup(found_dev);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev = container_of(node,
struct
@ -428,6 +437,7 @@ acpi_system_write_wakeup_device(struct file *file,
dev->pnp.bus_id, found_dev->pnp.bus_id);
dev->wakeup.state.enabled =
found_dev->wakeup.state.enabled;
physical_device_enable_wakeup(dev);
}
}
}