Commit da83df66 authored by Jonathan Cameron's avatar Jonathan Cameron
Browse files

iio:imu:inv_mpu6050: Use regmap_noinc_read for fifo reads. 



We should not be assuming that we are reading a sequence of
registers as here we are doing a read of a lot of data from
a single register address.

Not marked for stable as by coincidence it being wrong doesn't
make any difference.

Suggested-by: default avatarJean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: default avatarJean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Link: https://lore.kernel.org/r/20200722155103.979802-19-jic23@kernel.org
parent 6b0cc5dc

drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c

+2 −2
Original line number Diff line number Diff line
@@ -179,7 +179,7 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p) 
	nb = fifo_count / bytes_per_datum;

	inv_mpu6050_update_period(st, pf->timestamp, nb);

	for (i = 0; i < nb; ++i) {

		result = regmap_bulk_read(st->map, st->reg->fifo_r_w,

		result = regmap_noinc_read(st->map, st->reg->fifo_r_w,

					   st->data, bytes_per_datum);

		if (result)

			goto flush_fifo;