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iio: accel: adxl372: Perform a reset at start up

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We need to perform a reset a start up to make sure that the chip is in a
consistent state. This reset also disables all the interrupts which
should only be enabled together with the iio buffer. Not doing this, was
sometimes causing unwanted interrupts to trigger.

Signed-off-by: Stefan Popa <stefan.popa@analog.com>
Fixes: f4f55ce38e ("iio:adxl372: Add FIFO and interrupts support")
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Stefan Popa 2019-09-10 17:44:46 +03:00 committed by Jonathan Cameron
parent 62df81b743
commit d9a997bd4d
1 changed files with 8 additions and 0 deletions
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8
drivers/iio/accel/adxl372.c
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@ -575,6 +575,14 @@ static int adxl372_setup(struct adxl372_state *st)
return -ENODEV;
}
/*
* Perform a software reset to make sure the device is in a consistent
* state after start up.
*/
ret = regmap_write(st->regmap, ADXL372_RESET, ADXL372_RESET_CODE);
if (ret < 0)
return ret;
ret = adxl372_set_op_mode(st, ADXL372_STANDBY);
if (ret < 0)
return ret;