iio: accel: fix ADXL355 startup race condition

Browse source

commit c92c1bc408 upstream.

There is an race-condition where device is not full working after SW reset.
Therefore it's necessary to wait some time after reset and verify shadow
registers values by reading and comparing the values before/after reset.
This mechanism is described in datasheet at least from revision D.

Fixes: 12ed27863e ("iio: accel: Add driver support for ADXL355")
Signed-off-by: Valek Andrej <andrej.v@skyrain.eu>
Signed-off-by: Kessler Markus <markus.kessler@hilti.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Valek Andrej 2025-10-14 09:13:44 +02:00 • committed by Greg Kroah-Hartman

parent 65ad4ed983

commit 96a474c35d

1 changed files with 39 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

44

drivers/iio/accel/adxl355_core.c

View file