From: Ben Copeland <ben.copeland@linaro.org>
Date: Tue, 23 Sep 2025 19:26:56 +0000 (+0200)
Subject: hwmon: (asus-ec-sensors) increase timeout for locking ACPI mutex
X-Git-Tag: v6.12.58~406
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=527fbd192c0203f0eb2b8c2ac981318d373bfb61;p=thirdparty%2Fkernel%2Fstable.git

hwmon: (asus-ec-sensors) increase timeout for locking ACPI mutex

[ Upstream commit 584d55be66ef151e6ef9ccb3dcbc0a2155559be1 ]

Some motherboards require more time to acquire the ACPI mutex,
causing "Failed to acquire mutex" messages to appear in the kernel log.
Increase the timeout from 500ms to 800ms to accommodate these cases.

Signed-off-by: Ben Copeland <ben.copeland@linaro.org>
Signed-off-by: Eugene Shalygin <eugene.shalygin@gmail.com>
Link: https://lore.kernel.org/r/20250923192935.11339-3-eugene.shalygin@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/hwmon/asus-ec-sensors.c b/drivers/hwmon/asus-ec-sensors.c
index fdc157c7394d9..483dfb806cc51 100644
--- a/drivers/hwmon/asus-ec-sensors.c
+++ b/drivers/hwmon/asus-ec-sensors.c
@@ -49,7 +49,7 @@ static char *mutex_path_override;
  */
 #define ASUS_EC_MAX_BANK	3
 
-#define ACPI_LOCK_DELAY_MS	500
+#define ACPI_LOCK_DELAY_MS	800
 
 /* ACPI mutex for locking access to the EC for the firmware */
 #define ASUS_HW_ACCESS_MUTEX_ASMX	"\\AMW0.ASMX"