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SubjectRe: [RFC][PATCH 7/7] PM: Asynchronous suspend and resume of i8042
Date
On Tuesday 18 August 2009, Rafael J. Wysocki wrote:
> On Tuesday 18 August 2009, Zhang Rui wrote:
> > On Mon, 2009-08-17 at 08:21 +0800, Rafael J. Wysocki wrote:
> > > Set async_suspend for i8042.
> > >
> > it's the psmouse reset that takes the 0.4 seconds during suspend.
> > so we should call device_enable_async_suspend for the psmouse serio
> > device in psmouse-base.c
> >
> > Or invoking device_enable_async_suspend for every serio device in
> > serio.c, as the keyboard also takes about 0.2s to suspend.
>
> Yes we can do that. I'll test that later today.

The appended patch appears to work on my test box.

Thanks,
Rafael

---
Set async_suspend for serio input devices.
---
drivers/input/serio/serio.c | 1 +
1 file changed, 1 insertion(+)
Index: linux-2.6/drivers/input/serio/serio.c
===================================================================
--- linux-2.6.orig/drivers/input/serio/serio.c
+++ linux-2.6/drivers/input/serio/serio.c
@@ -576,6 +576,7 @@ static void serio_add_port(struct serio
printk(KERN_ERR
"serio: sysfs_create_group() failed for %s (%s), error: %d\n",
serio->phys, serio->name, error);
+ device_enable_async_suspend(&serio->dev, true);
}
}

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