On 22/02/16 21:39, Matt Ranostay wrote:
> replace msleep(INV_MPU6050_REG_UP_TIME) with usleep_range calls
> due to fact the wait time is under 20 milliseconds.
>
> Signed-off-by: Matt Ranostay <matt.ranostay@xxxxxxxxx>
Applied.
> ---
> drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 3 ++-
> drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c | 3 ++-
> drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h | 7 ++++++-
> 3 files changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
> index 4324328fd304..6d4b19dd16f8 100644
> --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
> +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
> @@ -148,7 +148,8 @@ 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;
> }
> diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
> index af400dd892a9..37cc16d3fca3 100644
> --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
> +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c
> @@ -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++;
> diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
> index fcc2f3dfdfa8..243324dd78de 100644
> --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
> +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
> @@ -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
>
--
To unsubscribe from this list: send the line "unsubscribe linux-iio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
