path: root/drivers/input/sparse-keymap.c
diff options
authorNeilBrown <neilb@suse.de>2012-07-29 22:18:47 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-08-21 22:29:48 -0700
commit2fba26c6595e4c1c64a74dad30f71c09708ff59a (patch)
tree978e2ec8f5154128e11778f93ebd9b914cf04630 /drivers/input/sparse-keymap.c
parentInput: gpio_keys - clean up device tree parser (diff)
Input: gpio_keys - report a wakeup_event for a button press
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 handler (gpio_keys_irq_isr), a simple pm_wakeup_event() with no delay is sufficient as suspend will synchronise with all interrupt delivery. When the user-space visible event is created 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> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/sparse-keymap.c')
0 files changed, 0 insertions, 0 deletions