linux-kernel - [PATCH 5.13 004/151] iio: adis: set GPIO reset pin direction

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Date:   Mon, 16 Aug 2021 15:00:34 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hannu Hartikainen <hannu@...k.in>,
        Antti Keränen <detegr@....email>,
        Nuno Sá <nuno.sa@...log.com>,
        Stable@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH 5.13 004/151] iio: adis: set GPIO reset pin direction

From: Antti Keränen <detegr@....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@...k.in>
Signed-off-by: Hannu Hartikainen <hannu@...k.in>
Signed-off-by: Antti Keränen <detegr@....email>
Reviewed-by: Nuno Sá <nuno.sa@...log.com>
Fixes: ecb010d44108 ("iio: imu: adis: Refactor adis_initial_startup")
Link: https://lore.kernel.org/r/20210708095425.13295-1-detegr@rbx.email
Cc: <Stable@...r.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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);