Re: [PATCH] Input: gpio_keys - Report wakeup events if device may wakeup

From: Benson Leung
Date: Mon Jul 30 2012 - 15:28:32 EST


Hi Dmitry,

Yes I see Neil's changes. Thank you for letting me know.

By the way, looking at Neil's changes, would it make sense to check
for device_may_wakeup(dev) like in my patch so that the wakeup
behavior can be turned off by setting power/wakeup to disabled?

Benson

On Sun, Jul 29, 2012 at 10:50 PM, Dmitry Torokhov
<dmitry.torokhov@xxxxxxxxx> wrote:
> Hi Benson,
>
> On Wed, Jul 25, 2012 at 11:11:53PM -0700, Benson Leung wrote:
>> If a button is configured to wake the system, report a pm wakeup event.
>>
>
> Thank you for your patch, however I applied more complete patch sent by
> NeilBrown.
>
>> Signed-off-by: Benson Leung <bleung@xxxxxxxxxxxx>
>> ---
>> drivers/input/keyboard/gpio_keys.c | 4 ++++
>> 1 files changed, 4 insertions(+), 0 deletions(-)
>>
>> diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
>> index cbb1add..15a80e2 100644
>> --- a/drivers/input/keyboard/gpio_keys.c
>> +++ b/drivers/input/keyboard/gpio_keys.c
>> @@ -328,9 +328,13 @@ static void gpio_keys_gpio_report_event(struct gpio_button_data *bdata)
>> {
>> const struct gpio_keys_button *button = bdata->button;
>> struct input_dev *input = bdata->input;
>> + struct device *dev = input->dev.parent;
>> unsigned int type = button->type ?: EV_KEY;
>> int state = (gpio_get_value_cansleep(button->gpio) ? 1 : 0) ^ button->active_low;
>>
>> + if (button->wakeup && device_may_wakeup(dev))
>> + pm_wakeup_event(dev, 0);
>> +
>> if (type == EV_ABS) {
>> if (state)
>> input_event(input, type, button->code, button->value);
>> --
>> 1.7.7.3
>>
>
> --
> Dmitry



--
Benson Leung
Software Engineer, Chrom* OS
bleung@xxxxxxxxxxxx
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