diff --git a/drivers/sensors/mpu60x0.c b/drivers/sensors/mpu60x0.c
index a91d55cea26..ff2b45a1807 100644
--- a/drivers/sensors/mpu60x0.c
+++ b/drivers/sensors/mpu60x0.c
@@ -645,15 +645,6 @@ static inline int __mpu_write_config(FAR struct mpu_dev_s *dev,
   return __mpu_write_reg(dev, CONFIG, &val, sizeof(val));
 }
 
-/* WHO_AM_I (0x75) : read-only, always returns 0x68 for mpu60x0 */
-
-static inline uint8_t __mpu_read_who_am_i(FAR struct mpu_dev_s *dev)
-{
-  uint8_t val = 0xff;
-  __mpu_read_reg(dev, WHO_AM_I, &val, sizeof(val));
-  return val;
-}
-
 /* Resets the mpu60x0, sets it to a default configuration. */
 
 static int mpu_reset(FAR struct mpu_dev_s *dev)