linux-kernel - [PATCH 03/10] Input: ilitek_ts_i2c: fix warning with gpio controllers that sleep

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: <20251027-imx8mp-hb-iiot-v1-3-683f86357818@solid-run.com>
Date: Mon, 27 Oct 2025 18:48:12 +0100
From: Josua Mayer <josua@...id-run.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Neil Armstrong <neil.armstrong@...aro.org>,
 Jessica Zhang <jessica.zhang@....qualcomm.com>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 Dmitry Torokhov <dmitry.torokhov@...il.com>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>
Cc: Jon Nettleton <jon@...id-run.com>,
 Mikhail Anikin <mikhail.anikin@...id-run.com>,
 Yazan Shhady <yazan.shhady@...id-run.com>, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 linux-input@...r.kernel.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, Josua Mayer <josua@...id-run.com>
Subject: [PATCH 03/10] Input: ilitek_ts_i2c: fix warning with gpio
 controllers that sleep

The ilitek touchscreen driver uses the non-sleeping gpiod_set_value
function for reset.

When the connected gpio controller needs to sleep as is common for i2c
based expanders, this causes noisy complaints in kernel log.

Reset is not time-critical, switch to the gpiod_set_value_cansleep
variant.

Signed-off-by: Josua Mayer <josua@...id-run.com>
---
 drivers/input/touchscreen/ilitek_ts_i2c.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/ilitek_ts_i2c.c b/drivers/input/touchscreen/ilitek_ts_i2c.c
index 0dd632724a003..8c5a54b336816 100644
--- a/drivers/input/touchscreen/ilitek_ts_i2c.c
+++ b/drivers/input/touchscreen/ilitek_ts_i2c.c
@@ -396,9 +396,9 @@ static const struct ilitek_protocol_map ptl_func_map[] = {
 static void ilitek_reset(struct ilitek_ts_data *ts, int delay)
 {
 	if (ts->reset_gpio) {
-		gpiod_set_value(ts->reset_gpio, 1);
+		gpiod_set_value_cansleep(ts->reset_gpio, 1);
 		mdelay(10);
-		gpiod_set_value(ts->reset_gpio, 0);
+		gpiod_set_value_cansleep(ts->reset_gpio, 0);
 		mdelay(delay);
 	}
 }

-- 
2.51.0