diff options
Diffstat (limited to 'drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c')
| -rw-r--r-- | drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c index 7327e5723f96..8a7f2911905a 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c @@ -71,6 +71,19 @@ int inv_mpu_aux_init(const struct inv_mpu6050_state *st) unsigned int val; int ret; + /* + * Code based on the vendor Linux kernel v3.0, + * the exact meaning is unknown. + */ + if (st->chip_type == INV_MPU9150) { + unsigned int mask = BIT(7); + + val = st->level_shifter ? mask : 0; + ret = regmap_update_bits(st->map, 0x1, mask, val); + if (ret) + return ret; + } + /* configure i2c master */ val = INV_MPU6050_BITS_I2C_MST_CLK_400KHZ | INV_MPU6050_BIT_WAIT_FOR_ES; |