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gpio: Add viperboard gpio driver

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This adds the mfd cell to use the gpio a and gpio b part
of the Nano River Technologies viperboard.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Lars Poeschel
2012-11-05 15:48:24 +01:00
committed by Samuel Ortiz
parent f01312d846
commit 9d5b72de0d
5 changed files with 536 additions and 0 deletions
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13
drivers/gpio/Kconfig
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@@ -649,4 +649,17 @@ config GPIO_MSIC
Enable support for GPIO on intel MSIC controllers found in
intel MID devices
comment "USB GPIO expanders:"
config GPIO_VIPERBOARD
tristate "Viperboard GPIO a & b support"
depends on MFD_VIPERBOARD && USB
help
Say yes here to access the GPIO signals of Nano River
Technologies Viperboard. There are two GPIO chips on the
board: gpioa and gpiob.
See viperboard API specification and Nano
River Tech's viperboard.h for detailed meaning
of the module parameters.
endif