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authorDmitry Torokhov <dtor@insightbb.com>2007-02-18 01:40:30 -0500
committerDmitry Torokhov <dtor@insightbb.com>2007-02-18 01:40:30 -0500
commit82dd9eff4bf3b17f5f511ae931a1f350c36ca9eb (patch)
treeccdd9581910720c07e7b1e0019278ea800671f24 /drivers/input/serio/serio.c
parenta1cec06177386ecc320af643de11cfa77e8945bd (diff)
downloadop-kernel-dev-82dd9eff4bf3b17f5f511ae931a1f350c36ca9eb.zip
op-kernel-dev-82dd9eff4bf3b17f5f511ae931a1f350c36ca9eb.tar.gz
Input: i8042 - let serio bus suspend ports
Let serio subsystem take care of suspending the ports; concentrate on suspending/resuming the controller itself. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'drivers/input/serio/serio.c')
-rw-r--r--drivers/input/serio/serio.c36
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 17c8c63c..a15e531 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -778,6 +778,19 @@ static int serio_driver_remove(struct device *dev)
return 0;
}
+static void serio_cleanup(struct serio *serio)
+{
+ if (serio->drv && serio->drv->cleanup)
+ serio->drv->cleanup(serio);
+}
+
+static void serio_shutdown(struct device *dev)
+{
+ struct serio *serio = to_serio_port(dev);
+
+ serio_cleanup(serio);
+}
+
static void serio_attach_driver(struct serio_driver *drv)
{
int error;
@@ -910,11 +923,25 @@ static int serio_uevent(struct device *dev, char **envp, int num_envp, char *buf
#endif /* CONFIG_HOTPLUG */
+#ifdef CONFIG_PM
+static int serio_suspend(struct device *dev, pm_message_t state)
+{
+ if (dev->power.power_state.event != state.event) {
+ if (state.event == PM_EVENT_SUSPEND)
+ serio_cleanup(to_serio_port(dev));
+
+ dev->power.power_state = state;
+ }
+
+ return 0;
+}
+
static int serio_resume(struct device *dev)
{
struct serio *serio = to_serio_port(dev);
- if (serio_reconnect_driver(serio)) {
+ if (dev->power.power_state.event != PM_EVENT_ON &&
+ serio_reconnect_driver(serio)) {
/*
* Driver re-probing can take a while, so better let kseriod
* deal with it.
@@ -922,8 +949,11 @@ static int serio_resume(struct device *dev)
serio_rescan(serio);
}
+ dev->power.power_state = PMSG_ON;
+
return 0;
}
+#endif /* CONFIG_PM */
/* called from serio_driver->connect/disconnect methods under serio_mutex */
int serio_open(struct serio *serio, struct serio_driver *drv)
@@ -974,7 +1004,11 @@ static struct bus_type serio_bus = {
.uevent = serio_uevent,
.probe = serio_driver_probe,
.remove = serio_driver_remove,
+ .shutdown = serio_shutdown,
+#ifdef CONFIG_PM
+ .suspend = serio_suspend,
.resume = serio_resume,
+#endif
};
static int __init serio_init(void)
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