MFD: ucb1x00-core: add wakeup support
Add genirq wakeup support for the ucb1x00 device. This allows an attached gpio_keys driver to wakeup the system. Touchscreen is also possible. When there are no wakeup sources, ask the platform to assert the reset signal to avoid any unexpected behaviour; this also puts the reset signal at the right level when power is removed from the device. Acked-by:Jochen Friedrich <jochen@scram.de> Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk>
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