linux-kernel - [PATCH v3 7/8] iio: adc: ad7606: fix standby gpio state to match the documentation

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240702-cleanup-ad7606-v3-7-57fd02a4e2aa@baylibre.com>
Date: Tue, 02 Jul 2024 17:34:11 +0000
From: Guillaume Stols <gstols@...libre.com>
To: Lars-Peter Clausen <lars@...afoo.de>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Jonathan Cameron <jic23@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Michael Hennerich <michael.hennerich@...log.com>, 
 linux-fbdev@...r.kernel.org, devicetree@...r.kernel.org, 
 Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
 Guillaume Stols <gstols@...libre.com>, jstephan@...libre.com, 
 dlechner@...libre.com
Subject: [PATCH v3 7/8] iio: adc: ad7606: fix standby gpio state to match
 the documentation

The binding's documentation specifies that "As the line is active low, it
should be marked GPIO_ACTIVE_LOW". However, in the driver, it was handled
the opposite way. This commit sets the driver's behaviour in sync with the
documentation

Fixes: 722407a4e8c0 ("staging:iio:ad7606: Use GPIO descriptor API")
Signed-off-by: Guillaume Stols <gstols@...libre.com>
---
 drivers/iio/adc/ad7606.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c
index 8cce1fad9763..50ccc245e314 100644
--- a/drivers/iio/adc/ad7606.c
+++ b/drivers/iio/adc/ad7606.c
@@ -443,7 +443,7 @@ static int ad7606_request_gpios(struct ad7606_state *st)
 		return PTR_ERR(st->gpio_range);
 
 	st->gpio_standby = devm_gpiod_get_optional(dev, "standby",
-						   GPIOD_OUT_HIGH);
+						   GPIOD_OUT_LOW);
 	if (IS_ERR(st->gpio_standby))
 		return PTR_ERR(st->gpio_standby);
 
@@ -686,7 +686,7 @@ static int ad7606_suspend(struct device *dev)
 
 	if (st->gpio_standby) {
 		gpiod_set_value(st->gpio_range, 1);
-		gpiod_set_value(st->gpio_standby, 0);
+		gpiod_set_value(st->gpio_standby, 1);
 	}
 
 	return 0;

-- 
2.34.1