iio: accel: Add support for Domintech DMARD06 accelerometer

This patch add support for Domintech DMARD05, DMARD06 and DMARD07
accelerometers.

Signed-off-by: Aleksei Mamlin <mamlinav@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index 89d7820..ee57eff 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -50,6 +50,17 @@
 	tristate
 	select REGMAP_SPI
 
+config DMARD06
+	tristate "Domintech DMARD06 Digital Accelerometer Driver"
+	depends on OF || COMPILE_TEST
+	depends on I2C
+	help
+	  Say yes here to build support for the Domintech low-g tri-axial
+	  digital accelerometers: DMARD05, DMARD06, DMARD07.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called dmard06.
+
 config HID_SENSOR_ACCEL_3D
 	depends on HID_SENSOR_HUB
 	select IIO_BUFFER