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From: "Antti Keränen" <detegr@rbx.email>
To: linux-iio@vger.kernel.org
Cc: "Antti Keränen" <detegr@rbx.email>,
	"Hannu Hartikainen" <hannu@hrtk.in>,
	"Lars-Peter Clausen" <lars@metafoo.de>,
	"Michael Hennerich" <Michael.Hennerich@analog.com>,
	"Nuno Sa" <nuno.sa@analog.com>,
	"Jonathan Cameron" <jic23@kernel.org>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2] iio: adis: set GPIO reset pin direction
Date: Thu,  8 Jul 2021 12:54:29 +0300	[thread overview]
Message-ID: <20210708095425.13295-1-detegr@rbx.email> (raw)
In-Reply-To: <60e5ac8c.1c69fb81.c69f0.abab@mx.google.com>

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>
---
Removed unnecessary toggling of the pin as requested by Lars-Peter. I
missed out on the conversation, but I agree this is better.

 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);
-- 
2.32.0


  reply	other threads:[~2021-07-08  9:59 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-06  9:29 [RESEND PATCH] iio: adis: set GPIO reset pin direction Antti Keränen
2021-07-07  8:18 ` Lars-Peter Clausen
2021-07-07  8:36 ` Sa, Nuno
2021-07-07 11:53   ` Hannu Hartikainen
2021-07-07 12:25     ` Lars-Peter Clausen
2021-07-07 13:30       ` Hannu Hartikainen
2021-07-08  9:54         ` Antti Keränen [this message]
2021-07-08 10:05           ` [PATCH v2] " Sa, Nuno
2021-07-10 17:35           ` Jonathan Cameron
2021-07-13 17:53           ` Jonathan Cameron
2021-07-14 10:04             ` Antti Keränen
2021-07-14 12:40               ` Jonathan Cameron
2021-07-14 18:25                 ` Antti Keränen
2021-07-17 17:41                   ` Jonathan Cameron
2021-07-07 12:32     ` [RESEND PATCH] " Sa, Nuno
2021-07-07 12:32   ` Lars-Peter Clausen

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