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Matt Porter 036aad9d02 greybus: gpio: add interrupt handling support 
Adds gpio interrupt handling support using an irqchip/irqdomain
instantiation inside the GB GPIO driver. This implementation works
on older kernels such as 3.10 that do not have the gpiolib irqchip
helpers. Any line on a Greybus gpiochip may be configured as an
interrupt. Once configured, IRQ event messages received from a
module fire off the registered interrupt handler.

Signed-off-by: Matt Porter <mporter@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
History 2015-02-17 16:28:28 -08:00
drivers/staging/greybus greybus: gpio: add interrupt handling support 2015-02-17 16:28:28 -08:00