regulator: da9210: New driver

I2C driver for the Dialog DA9210 Multi-phase 12A DC-DC Buck.

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: David Dajun Chen <david.chen@diasemi.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 759b601..fd4ae82 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -147,6 +147,16 @@
 	  This driver can also be built as a module. If so, the module
 	  will be called da9055-regulator.
 
+config REGULATOR_DA9210
+	tristate "Dialog Semiconductor DA9210 regulator"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  Say y here to support for the Dialog Semiconductor DA9210.
+	  The DA9210 is a multi-phase synchronous step down
+	  converter 12A DC-DC Buck controlled through an I2C
+	  interface.
+
 config REGULATOR_DBX500_PRCMU
 	bool