Extcon: support generic GPIO extcon driver
The generic GPIO extcon driver (an external connector device based on
GPIO control) and imported from Android kernel.
switch: switch class and GPIO drivers. (splitted)
Author: Mike Lockwood <lockwood@android.com>
switch: gpio: Don't call request_irq with interrupts disabled
Author: Arve Hjønnevåg <arve@android.com>
switch_gpio: Add missing #include <linux/interrupt.h>
Author: Mike Lockwood <lockwood@android.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
--
Changed from v7:
- Style updates mentioned by Stephen Boyd and Mark Brown
Changed from v5:
- Splitted at v5 from the main extcon patch.
- Added debounce time for irq handlers.
- Use request_any_context_irq instead of request_irq
- User needs to specify irq flags for GPIO interrupts (was fixed to
IRQF_TRIGGER_LOW before)
- Use module_platform_driver().
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig
index 7932e1b..85cecff 100644
--- a/drivers/extcon/Kconfig
+++ b/drivers/extcon/Kconfig
@@ -14,4 +14,11 @@
comment "Extcon Device Drivers"
+config EXTCON_GPIO
+ tristate "GPIO extcon support"
+ depends on GENERIC_GPIO
+ help
+ Say Y here to enable GPIO based extcon support. Note that GPIO
+ extcon supports single state per extcon instance.
+
endif # MULTISTATE_SWITCH