greybus: gpio: add interrupt handling support

Browse source

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>

...

This commit is contained in:

Matt Porter 2015-02-17 10:48:23 -05:00 • committed by Greg Kroah-Hartman

parent 48d7077c00

commit 036aad9d02

1 changed files with 314 additions and 12 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

326

drivers/staging/greybus/gpio.c

View file