i2c: tegra: Add i2c support

Adds I2C bus driver for nVidia Tegra SoCs.  Tegra includes 4 I2C
controllers, one of which is inside the Dynamic Voltage Controller
and has a slightly different register map.

Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 113505a6434e..a5f48dc3b81f 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -607,6 +607,13 @@ config I2C_STU300
           This driver can also be built as a module. If so, the module
           will be called i2c-stu300.
 
+config I2C_TEGRA
+        tristate "NVIDIA Tegra internal I2C controller"
+        depends on ARCH_TEGRA
+        help
+          If you say yes to this option, support will be included for the
+          I2C controller embedded in NVIDIA Tegra SOCs
+
 config I2C_VERSATILE
         tristate "ARM Versatile/Realview I2C bus support"
         depends on ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS