diff options
Diffstat (limited to 'drivers/input/misc/mpu/inv_gyro.c')
| -rw-r--r-- | drivers/input/misc/mpu/inv_gyro.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/input/misc/mpu/inv_gyro.c b/drivers/input/misc/mpu/inv_gyro.c index f8322beb23b9..34ec3a52c6cd 100644 --- a/drivers/input/misc/mpu/inv_gyro.c +++ b/drivers/input/misc/mpu/inv_gyro.c @@ -683,12 +683,13 @@ static int nvi_pwr_mgmt_1_war(struct inv_gyro_state_s *inf) int err; for (i = 0; i < POWER_UP_TIME; i++) { - inv_i2c_single_write(inf, inf->reg->pwr_mgmt_1, 0); - val = -1; - err = inv_i2c_read(inf, inf->reg->pwr_mgmt_1, 1, &val); - if (!val) - break; - + err = inv_i2c_single_write(inf, inf->reg->pwr_mgmt_1, 0); + if (err > 0) { + val = -1; + err = inv_i2c_read(inf, inf->reg->pwr_mgmt_1, 1, &val); + if (err > 0 && !val) + break; + } mdelay(1); } inf->hw.pwr_mgmt_1 = val; |