i2c: Add driver for SMBus Control Method Interface

This driver supports the SMBus Control Method Interface. It needs BIOS declare
ACPI control methods which described in SMBus Control Method Interface Spec.
http://smbus.org/specs/smbus_cmi10.pdf

Signed-off-by: Crane Cai <crane.cai@amd.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index bb216c5fe30e..838bd1e4efb4 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -762,4 +762,15 @@ config SCx200_ACB
           This support is also available as a module.  If so, the module
           will be called scx200_acb.
 
+config I2C_SCMI
+        tristate "SMBus Control Method Interface"
+        depends on ACPI
+        help
+          This driver supports the SMBus Control Method Interface. It needs the
+          BIOS to declare ACPI control methods as described in the SMBus Control
+          Method Interface specification.
+
+          To compile this driver as a module, choose M here:
+          the module will be called i2c-scmi.
+
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