i2c: Add Renesas RZ/V2M controller

Yet another i2c controller from Renesas that is found on the RZ/V2M
(r9a09g011) SoC. It can support only 100kHz and 400KHz operation.
Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
[wsa: removed superfluous class type and renamed a function]
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/Kconfig

@@ -996,6 +996,16 @@ config I2C_RK3X
 	  This driver can also be built as a module. If so, the module will
 	  be called i2c-rk3x.
 
+config I2C_RZV2M
+	tristate "Renesas RZ/V2M adapter"
+	depends on ARCH_RENESAS || COMPILE_TEST
+	help
+	  If you say yes to this option, support will be included for the
+	  Renesas RZ/V2M  I2C interface.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-rzv2m.
+
 config I2C_S3C2410
 	tristate "S3C/Exynos I2C Driver"
 	depends on ARCH_EXYNOS || ARCH_S3C24XX || ARCH_S3C64XX || \

drivers/i2c/busses/Makefile

@@ -102,6 +102,7 @@ obj-$(CONFIG_I2C_QCOM_GENI)	+= i2c-qcom-geni.o
 obj-$(CONFIG_I2C_QUP)		+= i2c-qup.o
 obj-$(CONFIG_I2C_RIIC)		+= i2c-riic.o
 obj-$(CONFIG_I2C_RK3X)		+= i2c-rk3x.o
+obj-$(CONFIG_I2C_RZV2M)		+= i2c-rzv2m.o
 obj-$(CONFIG_I2C_S3C2410)	+= i2c-s3c2410.o
 obj-$(CONFIG_I2C_SH7760)	+= i2c-sh7760.o
 obj-$(CONFIG_I2C_SH_MOBILE)	+= i2c-sh_mobile.o