From: Stefan Popa Date: Tue, 10 Sep 2019 14:44:46 +0000 (+0300) Subject: iio: accel: adxl372: Perform a reset at start up X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d9a997bd4d762d5bd8cc548d762902f58b5e0a74;p=linux.git iio: accel: adxl372: Perform a reset at start up 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 Fixes: f4f55ce38e5f ("iio:adxl372: Add FIFO and interrupts support") Cc: Signed-off-by: Jonathan Cameron --- diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c index fbad4b45fe42d..67b8817995c04 100644 --- a/drivers/iio/accel/adxl372.c +++ b/drivers/iio/accel/adxl372.c @@ -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;