gpio: document gpio irqchips a bit more, describe helpers
authorLinus Walleij <linus.walleij@linaro.org>
Wed, 9 Apr 2014 12:36:32 +0000 (14:36 +0200)
committerLinus Walleij <linus.walleij@linaro.org>
Mon, 28 Apr 2014 19:35:07 +0000 (12:35 -0700)
commit90887db8837bb2ea57c3541d56a002e9654082b3
treece40d206d01c0abbd016986075e1d4b311b45878
parentcf42f1cfe419f20425fc0c27b9930b6b51fe77b2
gpio: document gpio irqchips a bit more, describe helpers

This adds some documentation about the GPIO irqchips, what types
exist etc.

Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Documentation/gpio/driver.txt