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| author |   David Brownell <david-b@pacbell.net> | 2007-04-26 00:12:06 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2007-04-27 10:57:33 -0700 |
| commit | 075c1771526c85849ed22298d048bc07e400aee5 (patch) | |
| tree | a1579e93b450b0e870a7a65698f9a07bddbfd899 /drivers/base | |
| parent | security: prevent permission checking of file removal via sysfs_remove_group() (diff) | |
| download | linux-dev-075c1771526c85849ed22298d048bc07e400aee5.tar.xz linux-dev-075c1771526c85849ed22298d048bc07e400aee5.zip | |
define platform wakeup hook, use in pci_enable_wake()
This defines a platform hook to enable/disable a device as a wakeup event
source. It's initially for use with ACPI, but more generally it could be used
whenever enable_irq_wake()/disable_irq_wake() don't suffice.
The hook is called -- if available -- inside pci_enable_wake(); and the
semantics of that call are enhanced so that support for PCI PME# is no longer
needed. It can now work for devices with "legacy PCI PM", when platform
support allows it. (That support would use some board-specific signal for for
the same purpose as PME#.)
[akpm@linux-foundation.org: Make it compile with CONFIG_PM=n]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/main.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index bbbb973a9d3c..05dc8764e765 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -29,6 +29,9 @@ LIST_HEAD(dpm_off_irq); DECLARE_MUTEX(dpm_sem); DECLARE_MUTEX(dpm_list_sem); +int (*platform_enable_wakeup)(struct device *dev, int is_on); + + /** * device_pm_set_parent - Specify power dependency. * @dev: Device who needs power. |