From: Antti Keränen detegr@rbx.email
stable inclusion from stable-5.10.60 commit 45de224b1332577f3e7aac60332a7000939c068a bugzilla: 177018 https://gitee.com/openeuler/kernel/issues/I4EAUG
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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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 Signed-off-by: Chen Jun chenjun102@huawei.com Acked-by: Weilong Chen chenweilong@huawei.com Signed-off-by: Chen Jun chenjun102@huawei.com --- drivers/iio/imu/adis.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/iio/imu/adis.c b/drivers/iio/imu/adis.c index 319b64b2fd88..f8b7837d8b8f 100644 --- a/drivers/iio/imu/adis.c +++ b/drivers/iio/imu/adis.c @@ -415,12 +415,11 @@ int __adis_initial_startup(struct adis *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);