Many gpio controllers 'cansleep' due to the fact that they are behind busses
e.g. i2c etc.
Using threaded irq's allows for 'sleep-able' gpio's to be used.
Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
SVN-Revision: 48696
of_get_gpio_flags() could return an error like EPROBE_DEFER which was
not handled before. This patch takes the code from gpio_keys_polled.c
for error handling and also improves some other unrelated small parts.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
SVN-Revision: 46502
3.3 kernels do not have the required changes which would make
gpio-button-hotplug work, disallow building on those kernels for now.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
SVN-Revision: 39903
The wimax key will be used as a generic wwan key starting with Linux
3.13. The brcm47xx target uses this key for the 3g buttons. Also remove
the ifdef around KEY_WPS_BUTTON, this is in the kernel for a long time
now.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
SVN-Revision: 39290
Don't call gpio_keys_remove recursively. Setting the platform
data to NULL triggered an oops on the second iteration, so there was
no infinate loop.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
SVN-Revision: 39124
TL-WR720N-v3 has a slider switch composed of 2 GPIO buttons which can be
used to swtich between 3 positions. At leat 1 button is in pressed state
in any of those positions. Initialize 'last_state' as 0 (released) will
cause the device to automatically enter failsafe mode on every bootup.
Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
SVN-Revision: 37643
