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Commit 8f356be3 authored by Matt Ranostay's avatar Matt Ranostay Committed by Jonathan Cameron
Browse files

iio: imu: mpu6050: fix INV_MPU6050_REG_UP_TIME delay 



replace msleep(INV_MPU6050_REG_UP_TIME) with usleep_range calls
due to fact the wait time is under 20 milliseconds.

Signed-off-by: default avatarMatt Ranostay <matt.ranostay@intel.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 115f0341

drivers/iio/imu/inv_mpu6050/inv_mpu_core.c

+2 −1
Original line number Diff line number Diff line
@@ -151,7 +151,8 @@ int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on) 
		return result;



	if (power_on)

		msleep(INV_MPU6050_REG_UP_TIME);

		usleep_range(INV_MPU6050_REG_UP_TIME_MIN,

			     INV_MPU6050_REG_UP_TIME_MAX);



	return 0;

}

drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c

+2 −1
Original line number Diff line number Diff line
@@ -68,7 +68,8 @@ static int inv_mpu6050_select_bypass(struct i2c_adapter *adap, void *mux_priv, 
		if (ret)

			goto write_error;



		msleep(INV_MPU6050_REG_UP_TIME);

		usleep_range(INV_MPU6050_REG_UP_TIME_MIN,

			     INV_MPU6050_REG_UP_TIME_MAX);

	}

	if (!ret) {

		st->powerup_count++;

drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h

+6 −1
Original line number Diff line number Diff line
@@ -172,10 +172,15 @@ struct inv_mpu6050_state { 
#define INV_MPU6050_BYTES_PER_3AXIS_SENSOR   6

#define INV_MPU6050_FIFO_COUNT_BYTE          2

#define INV_MPU6050_FIFO_THRESHOLD           500



/* delay time in milliseconds */

#define INV_MPU6050_POWER_UP_TIME            100

#define INV_MPU6050_TEMP_UP_TIME             100

#define INV_MPU6050_SENSOR_UP_TIME           30

#define INV_MPU6050_REG_UP_TIME              5



/* delay time in microseconds */

#define INV_MPU6050_REG_UP_TIME_MIN          5000

#define INV_MPU6050_REG_UP_TIME_MAX          10000



#define INV_MPU6050_TEMP_OFFSET	             12421

#define INV_MPU6050_TEMP_SCALE               2941