iio:gyro: Add support for the ADIS16136 gyroscope

This patch adds support for the ADIS16133, ADIS16135, ADIS16136 single channel
gyroscopes. The main difference between them is the sensor precision.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

drivers/iio/gyro/Kconfig

@@ -3,6 +3,15 @@
 #
 menu "Digital gyroscope sensors"
 
+config ADIS16136
+	tristate "Analog devices ADIS16136 and similar gyroscopes driver"
+	depends on SPI_MASTER
+	select IIO_ADIS_LIB
+	select IIO_ADIS_LIB_BUFFER if IIO_BUFFER
+	help
+	  Say yes here to build support for the Analog Devices ADIS16133, ADIS16135,
+	  ADIS16136 gyroscope devices.
+
 config HID_SENSOR_GYRO_3D
 	depends on HID_SENSOR_HUB
 	select IIO_BUFFER

drivers/iio/gyro/Makefile

@@ -2,4 +2,5 @@
 # Makefile for industrial I/O gyroscope sensor drivers
 #
 
+obj-$(CONFIG_ADIS16136) += adis16136.o
 obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o