iio: types: Added support for rotation from north usage attributes

Added the rotation from north usage attributes to the iio modifier enum and to the iio modifier names array.
Signed-off-by: NReyad Attiyat <reyad.attiyat@gmail.com>
Acked-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: NJonathan Cameron <jic23@kernel.org>

drivers/iio/industrialio-core.c

@@ -87,6 +87,10 @@ static const char * const iio_modifier_names[] = {
 	[IIO_MOD_QUATERNION] = "quaternion",
 	[IIO_MOD_TEMP_AMBIENT] = "ambient",
 	[IIO_MOD_TEMP_OBJECT] = "object",
+	[IIO_MOD_NORTH_MAGN] = "from_north_magnetic",
+	[IIO_MOD_NORTH_TRUE] = "from_north_true",
+	[IIO_MOD_NORTH_MAGN_TILT_COMP] = "from_north_magnetic_tilt_comp",
+	[IIO_MOD_NORTH_TRUE_TILT_COMP] = "from_north_true_tilt_comp",
 };
 
 /* relies on pairs of these shared then separate */

include/linux/iio/types.h

@@ -56,6 +56,10 @@ enum iio_modifier {
 	IIO_MOD_QUATERNION,
 	IIO_MOD_TEMP_AMBIENT,
 	IIO_MOD_TEMP_OBJECT,
+	IIO_MOD_NORTH_MAGN,
+	IIO_MOD_NORTH_TRUE,
+	IIO_MOD_NORTH_MAGN_TILT_COMP,
+	IIO_MOD_NORTH_TRUE_TILT_COMP
 };
 
 enum iio_event_type {