diff --git a/drivers/iio/accel/adxl345.h b/drivers/iio/accel/adxl345.h
index 6c1f96406136..9385affdefe3 100644
--- a/drivers/iio/accel/adxl345.h
+++ b/drivers/iio/accel/adxl345.h
@@ -73,7 +73,6 @@
 #define ADXL345_BW_LOW_POWER		BIT(4)
 #define ADXL345_BASE_RATE_NANO_HZ	97656250LL
 
-#define ADXL345_POWER_CTL_STANDBY	0x00
 #define ADXL345_POWER_CTL_WAKEUP	GENMASK(1, 0)
 #define ADXL345_POWER_CTL_SLEEP	BIT(2)
 #define ADXL345_POWER_CTL_MEASURE	BIT(3)
diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c
index 00c11402ef3a..e7c01bb154bf 100644
--- a/drivers/iio/accel/adxl345_core.c
+++ b/drivers/iio/accel/adxl345_core.c
@@ -233,9 +233,8 @@ EXPORT_SYMBOL_NS_GPL(adxl345_is_volatile_reg, "IIO_ADXL345");
  */
 static int adxl345_set_measure_en(struct adxl345_state *st, bool en)
 {
-	unsigned int val = en ? ADXL345_POWER_CTL_MEASURE : ADXL345_POWER_CTL_STANDBY;
-
-	return regmap_write(st->regmap, ADXL345_REG_POWER_CTL, val);
+	return regmap_assign_bits(st->regmap, ADXL345_REG_POWER_CTL,
+				  ADXL345_POWER_CTL_MEASURE, en);
 }
 
 /* tap */