staging: iio: meter: new driver for ADE7753/6 devices

This also kicks off the new meter subsection.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/iio/Kconfig

@@ -49,7 +49,7 @@ source "drivers/staging/iio/gyro/Kconfig"
 source "drivers/staging/iio/imu/Kconfig"
 source "drivers/staging/iio/light/Kconfig"
 source "drivers/staging/iio/magnetometer/Kconfig"
-
+source "drivers/staging/iio/meter/Kconfig"
 source "drivers/staging/iio/trigger/Kconfig"
 
 endif # IIO

drivers/staging/iio/Makefile

@@ -17,5 +17,6 @@ obj-y += dds/
 obj-y += gyro/
 obj-y += imu/
 obj-y += light/
-obj-y += trigger/
 obj-y += magnetometer/
+obj-y += meter/
+obj-y += trigger/

drivers/staging/iio/meter/Kconfig

@@ -0,0 +1,11 @@
+#
+# IIO meter drivers configuration
+#
+comment "Active energy metering IC"
+
+config ADE7753
+	tristate "Analog Devices ADE7753/6 Single-Phase Multifunction Metering IC Driver"
+	depends on SPI
+	help
+	  Say yes here to build support for Analog Devices ADE7753 Single-Phase Multifunction
+	  Metering IC with di/dt Sensor Interface.

drivers/staging/iio/meter/Makefile

@@ -0,0 +1,5 @@
+#
+# Makefile for metering ic drivers
+#
+
+obj-$(CONFIG_ADE7753) += ade7753.o