diff mbox series

[07/13] iio: imu: inv_mpu6050: fix sleep time when turning regulators on

Message ID 20200212174048.1034-8-jmaneyrol@invensense.com (mailing list archive)
State New, archived
Headers show
Series Rework sensors engines and power management | expand

Commit Message

Jean-Baptiste Maneyrol Feb. 12, 2020, 5:40 p.m. UTC 
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>
---
 drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

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) {