From: NeilBrown <neilb@suse.de>
Date: Fri, 29 Jun 2012 10:18:30 +0000 (+1000)
Subject: Input: gpio_keys: report a wakeup_event for a button press on a wake_up button.
X-Git-Tag: sz_154~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b62b693f788dffed0766e7b61632d45e1b592478;p=pandora-kernel.git

Input: gpio_keys: report a wakeup_event for a button press on a wake_up button.

In order to avoid races with suspend, a wakeup event must register as
such by calling pm_wakeup_event() or pm_stay_awake.  This will ensure
that the current suspend cycle aborts.

When the user-space visible event is created in the interrupt handled
(gpio_keys_irq_isr), and simple pm_wakeup_event() with no delay is
sufficient as suspend will synchronise with all interrupt delivery.

When the user-space visible event is create later
(gpio_keys_gpio_isr), we need to bracket the event with
pm_stay_awake() and pm_relax().

Signed-off-by: NeilBrown <neilb@suse.de>

Conflicts:

	drivers/input/keyboard/gpio_keys.c
---

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