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pnp: add a shutdown method to pnp drivers

Browse source 
The shutdown method is used by the winbond cir driver to setup the
hardware for wake-from-S5.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: David Härdeman <david@hardeman.nu>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Härdeman 2009-09-21 17:04:52 -07:00 committed by Linus Torvalds
parent a976f150a6
commit abd6633c67
2 changed files with 11 additions and 0 deletions
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10
drivers/pnp/driver.c
View file

@ -135,6 +135,15 @@ static int pnp_device_remove(struct device *dev)
return 0;
}
static void pnp_device_shutdown(struct device *dev)
{
struct pnp_dev *pnp_dev = to_pnp_dev(dev);
struct pnp_driver *drv = pnp_dev->driver;
if (drv && drv->shutdown)
drv->shutdown(pnp_dev);
}
static int pnp_bus_match(struct device *dev, struct device_driver *drv)
{
struct pnp_dev *pnp_dev = to_pnp_dev(dev);
@ -203,6 +212,7 @@ struct bus_type pnp_bus_type = {
.match = pnp_bus_match,
.probe = pnp_device_probe,
.remove = pnp_device_remove,
.shutdown = pnp_device_shutdown,
.suspend = pnp_bus_suspend,
.resume = pnp_bus_resume,
.dev_attrs = pnp_interface_attrs,

1
include/linux/pnp.h
View file

@ -360,6 +360,7 @@ struct pnp_driver {
unsigned int flags;
int (*probe) (struct pnp_dev *dev, const struct pnp_device_id *dev_id);
void (*remove) (struct pnp_dev *dev);
void (*shutdown) (struct pnp_dev *dev);
int (*suspend) (struct pnp_dev *dev, pm_message_t state);
int (*resume) (struct pnp_dev *dev);
struct device_driver driver;