pnp: add a shutdown method to pnp drivers
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>
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index 527ee76..cd11b11 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -135,6 +135,15 @@
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 @@
.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,