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SubjectRe: [RFC][PATCH 7/7] PM: Asynchronous suspend and resume of i8042
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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.

thanks,
rui
> ---
> drivers/input/serio/i8042.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> Index: linux-2.6/drivers/input/serio/i8042.c
> ===================================================================
> --- linux-2.6.orig/drivers/input/serio/i8042.c
> +++ linux-2.6/drivers/input/serio/i8042.c
> @@ -1289,6 +1289,8 @@ static int __init i8042_init(void)
> if (err)
> goto err_free_device;
>
> + device_enable_async_suspend(&i8042_platform_device->dev, true);
> +
> panic_blink = i8042_panic_blink;
>
> return 0;

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