i2c: Add viperboard i2c master driver

This adds the mfd cell to use the i2c part of the Nano River Technologies
viperboard as i2c master.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index e9df4612b7eb..c7bff51fe524 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -818,6 +818,16 @@ config I2C_TINY_USB
           This driver can also be built as a module.  If so, the module
           will be called i2c-tiny-usb.
 
+config I2C_VIPERBOARD
+        tristate "Viperboard I2C master support"
+        depends on MFD_VIPERBOARD && USB
+        help
+          Say yes here to access the I2C part of the Nano River
+          Technologies Viperboard as I2C master.
+          See viperboard API specification and Nano
+          River Tech's viperboard.h for detailed meaning
+          of the module parameters.
+
 comment "Other I2C/SMBus bus drivers"
 
 config I2C_ACORN