[PATCH v3] platform/x86: asus-wmi: log thermal notification event

[Jonathan Grant <jg@jguk.org>]

From 4eb1a89ef5b481a8bd85bd68735b879e4ed6cb27 Mon Sep 17 00:00:00 2001
From: Jonathan Grant <jg@jguk.org>
Date: Sat, 14 Mar 2026 02:11:09 +0000
Subject: [PATCH] platform/x86: asus-wmi: log thermal notification event

Print a diagnostic message when the ASUS WMI interface receives event 0x6d.
This event was observed shortly before thermal shutdown on an ASUS N56VB under
heavy system load. The message helps diagnose unexpected thermal power-offs.

Signed-off-by: Jonathan Grant <jg@jguk.org>
---
v3:
 - do not change unrelated whitespace
 - address -Wdangling-else by adding braces

 drivers/platform/x86/asus-wmi.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 7c0915e097ba..3bdd92baac57 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -70,6 +70,7 @@ module_param(fnlock_default, bool, 0444);
 #define NOTIFY_KBD_TTP			0xae
 #define NOTIFY_LID_FLIP			0xfa
 #define NOTIFY_LID_FLIP_ROG		0xbd
+#define NOTIFY_THERMAL			0x6d
 
 #define ASUS_WMI_FNLOCK_BIOS_DISABLED	BIT(0)
 
@@ -4597,8 +4598,14 @@ static void asus_wmi_handle_event_code(int code, struct asus_wmi *asus)
 		return;
 
 	if (!sparse_keymap_report_event(asus->inputdev, code,
-					key_value, autorelease))
-		pr_info("Unknown key code 0x%x\n", code);
+					key_value, autorelease)) {
+		if (code == NOTIFY_THERMAL) {
+			pr_info("Thermal state change\n");
+		}
+		else {
+			pr_info("Unknown key code 0x%x\n", code);
+		}
+	}
 }
 
 static void asus_wmi_notify(union acpi_object *obj, void *context)
-- 
2.43.0