tree 94e51a1666727e5a2b4f5ac18796e02cf02241b3
parent 6057d40f41a30f234533e5cf28810dd3fd2b6995
author William Breathitt Gray <vilhelm.gray@gmail.com> 1445273954 -0400
committer Linus Walleij <linus.walleij@linaro.org> 1445940079 +0100

gpio: Add GPIO support for the ACCES 104-IDIO-16

The ACCES 104-IDIO-16 family of PC/104 utility boards feature 16
optically isolated inputs and 16 optically isolated FET solid state
outputs. This driver provides GPIO support for these 32 channels of
digital I/O. Change-of-State detection interrupts are not supported.

GPIO 0-15 correspond to digital outputs 0-15, while GPIO 16-31
correspond to digital inputs 0-15. The base port address for the device
may be set via the idio_16_base module parameter.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>