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| author |   Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> | 2020-02-19 15:39:52 +0100 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-03-08 17:28:38 +0000 |
| commit | 398da9942359efad600b9efb33e6573fedc9276d (patch) | |
| tree | 9ad89bd2be5565a068269f31cd45735f59e6a615 /drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | |
| parent | iio: imu: inv_mpu6050: add all signal path resets at init (diff) | |
| download | wireguard-linux-398da9942359efad600b9efb33e6573fedc9276d.tar.xz wireguard-linux-398da9942359efad600b9efb33e6573fedc9276d.zip | |
iio: imu: inv_mpu6050: reduce sleep time when turning regulators on
Turning vdd regulator on requires a consequent sleep for the
chip to power on correctly.
Turning vddio regulator is much faster.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/imu/inv_mpu6050/inv_mpu_core.c')
| -rw-r--r-- | drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index 3502b996671c..63cdde20df7e 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -1201,7 +1201,7 @@ static int inv_mpu_core_enable_regulator_vddio(struct inv_mpu6050_state *st) "Failed to enable vddio regulator: %d\n", result); } else { /* Give the device a little bit of time to start up. */ - usleep_range(35000, 70000); + usleep_range(3000, 5000); } return result; @@ -1321,6 +1321,7 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name, dev_err(dev, "Failed to enable vdd regulator: %d\n", result); return result; } + msleep(INV_MPU6050_POWER_UP_TIME); result = inv_mpu_core_enable_regulator_vddio(st); if (result) { |