On 08/03/2011 02:59 PM, Dmitry Torokhov wrote:
> Hi Daniel,
>
> On Tue, Aug 02, 2011 at 04:49:15PM +0100, Daniel Drake wrote:
>> The OLPC XO laptop is able to use the PS/2 controller as a wakeup source.
>> When used as a wakeup source, the key press/mouse motion must not be lost.
>>
>> Add infrastructure to allow controllers to be marked as wakeup-capable,
>> and avoid doing power control/reset on the i8042/serio/input devices when
>> running in this mode. For systems where this functionality is available,
>> you are expected to enable wakeups on the i8042 device, the serio
>> devices, and the relevant input devices, to ensure that the hardware is
>> left powered and untouched throughout the suspend/resume.
>>
>> Signed-off-by: Daniel Drake<dsd@xxxxxxxxxx>
>> ---
>> drivers/input/input.c | 6 +++-
>> drivers/input/keyboard/atkbd.c | 4 ++-
>> drivers/input/mouse/hgpk.c | 2 +
>> drivers/input/mouse/psmouse-base.c | 4 ++-
>> drivers/input/serio/i8042-io.h | 4 ++
>> drivers/input/serio/i8042-ip22io.h | 4 ++
>> drivers/input/serio/i8042-jazzio.h | 4 ++
>> drivers/input/serio/i8042-ppcio.h | 4 ++
>> drivers/input/serio/i8042-snirm.h | 4 ++
>> drivers/input/serio/i8042-sparcio.h | 4 ++
>> drivers/input/serio/i8042-x86ia64io.h | 4 ++
>> drivers/input/serio/i8042.c | 62 +++++++++++++++++++++++++++++---
>> drivers/input/serio/serio.c | 29 +++++++++++++--
>> 13 files changed, 122 insertions(+), 13 deletions(-)
>>
>> serio->port_data = port;
>> - serio->dev.parent =&i8042_platform_device->dev;
>> + serio->dev.parent = parent;
>> + device_set_wakeup_capable(&serio->dev, device_can_wakeup(parent));
>> if (idx< 0) {
>> strlcpy(serio->name, "i8042 AUX port", sizeof(serio->name));
>> strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
>> @@ -1403,6 +1450,9 @@ static int __init i8042_probe(struct platform_device *dev)
>> i8042_dritek_enable();
>> #endif
>>
>> + if (i8042_enable_wakeup)
>> + device_set_wakeup_capable(&dev->dev, true);
>> +
>
> device_set_wakeup_capable(&dev->dev, i8042_enable_wakeup); ?
>
Hi Daniel:
May be you missed this comment by Dmitry?
Thanks
Best Regards
Wanlong Gao
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