Sudip Mukherjee 6596e59e63 gpio: exar: add gpio for exar cards
Exar XR17V352/354/358 chips have 16 multi-purpose inputs/outputs which
can be controlled using gpio interface.

Add the gpio specific code.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2017-01-26 11:11:40 +01:00
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