staging:iio: Add chan info support for 'peak_raw' attributes.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
index c6b471c..1a6bedc 100644
--- a/drivers/staging/iio/iio.h
+++ b/drivers/staging/iio/iio.h
@@ -73,7 +73,11 @@
 	IIO_CHAN_INFO_CALIBSCALE_SHARED,
 	IIO_CHAN_INFO_CALIBSCALE_SEPARATE,
 	IIO_CHAN_INFO_CALIBBIAS_SHARED,
-	IIO_CHAN_INFO_CALIBBIAS_SEPARATE
+	IIO_CHAN_INFO_CALIBBIAS_SEPARATE,
+	IIO_CHAN_INFO_PEAK_SHARED,
+	IIO_CHAN_INFO_PEAK_SEPARATE,
+	IIO_CHAN_INFO_PEAK_SCALE_SHARED,
+	IIO_CHAN_INFO_PEAK_SCALE_SEPARATE,
 };
 
 /**
diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
index e943dac..e3582c9 100644
--- a/drivers/staging/iio/industrialio-core.c
+++ b/drivers/staging/iio/industrialio-core.c
@@ -80,6 +80,8 @@
 	[IIO_CHAN_INFO_OFFSET_SHARED/2] = "offset",
 	[IIO_CHAN_INFO_CALIBSCALE_SHARED/2] = "calibscale",
 	[IIO_CHAN_INFO_CALIBBIAS_SHARED/2] = "calibbias",
+	[IIO_CHAN_INFO_PEAK_SHARED/2] = "peak_raw",
+	[IIO_CHAN_INFO_PEAK_SCALE_SHARED/2] = "peak_scale",
 };
 
 int iio_push_event(struct iio_dev *dev_info,