1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 9c343b40665e..3ffbc56917b4 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -28,7 +28,9 @@
 #include <linux/iio/common/st_sensors.h>
 #include "st_pressure.h"
 
-#define ST_PRESS_MBAR_TO_KPASCAL(x)             (x * 10)
+#define ST_PRESS_LSB_PER_MBAR                   4096UL
+#define ST_PRESS_KPASCAL_NANO_SCALE             (100000000UL / \
+                                                 ST_PRESS_LSB_PER_MBAR)
 #define ST_PRESS_NUMBER_DATA_CHANNELS           1
 
 /* DEFAULT VALUE FOR SENSORS */
@@ -51,8 +53,8 @@
 #define ST_PRESS_1_FS_ADDR                      0x23
 #define ST_PRESS_1_FS_MASK                      0x30
 #define ST_PRESS_1_FS_AVL_1260_VAL              0x00
-#define ST_PRESS_1_FS_AVL_1260_GAIN             ST_PRESS_MBAR_TO_KPASCAL(244141)
 #define ST_PRESS_1_FS_AVL_TEMP_GAIN             2083000
+#define ST_PRESS_1_FS_AVL_1260_GAIN             ST_PRESS_KPASCAL_NANO_SCALE
 #define ST_PRESS_1_BDU_ADDR                     0x20
 #define ST_PRESS_1_BDU_MASK                     0x04
 #define ST_PRESS_1_DRDY_IRQ_ADDR                0x22