From: Antti Keränen detegr@rbx.email
commit 7e77ef8b8d600cf8448a2bbd32f682c28884551f upstream.
Set reset pin direction to output as the reset pin needs to be an active low output pin.
Co-developed-by: Hannu Hartikainen hannu@hrtk.in Signed-off-by: Hannu Hartikainen hannu@hrtk.in Signed-off-by: Antti Keränen detegr@rbx.email Reviewed-by: Nuno Sá nuno.sa@analog.com Fixes: ecb010d44108 ("iio: imu: adis: Refactor adis_initial_startup") Link: https://lore.kernel.org/r/20210708095425.13295-1-detegr@rbx.email Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iio/imu/adis.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/iio/imu/adis.c +++ b/drivers/iio/imu/adis.c @@ -415,12 +415,11 @@ int __adis_initial_startup(struct adis * int ret;
/* check if the device has rst pin low */ - gpio = devm_gpiod_get_optional(&adis->spi->dev, "reset", GPIOD_ASIS); + gpio = devm_gpiod_get_optional(&adis->spi->dev, "reset", GPIOD_OUT_HIGH); if (IS_ERR(gpio)) return PTR_ERR(gpio);
if (gpio) { - gpiod_set_value_cansleep(gpio, 1); msleep(10); /* bring device out of reset */ gpiod_set_value_cansleep(gpio, 0);