[PATCH] platform/x86: asus-nb-wmi: Ignore GX651AR event 0x5e

[Cymirk <cymirk874@gmail.com>]

The ASUS ROG Zephyrus Duo GX651AR reports WMI event 0x5e when
the detachable keyboard is attached or detached. The ASUS WMI
driver handles this event alongside wireless-console events,
where it can be interpreted as a wireless key event.

Add a model-specific quirk to ignore event 0x5e on the GX651AR.
Keep handling of events 0x5d and 0x5f unchanged and leave other
ASUS models unaffected.

Tested on ASUS ROG Zephyrus Duo GX651AR, Fedora 44, kernel
7.2.11-200.fc44.x86_64, using a temporary module built from the
v7.2.11 driver source with the KEYBOARD_KEY_5e hwdb override
disabled. Keyboard detach/reattach and typing continued to work;
Wi-Fi remained enabled, and evtest no longer reported scan code
0x5e.
Assisted-by: AI LLM
Signed-off-by: Cymirk <Cymirk874@gmail.com>
---
 drivers/platform/x86/asus-nb-wmi.c | 18 +++++++++++++++++-
 drivers/platform/x86/asus-wmi.h    |  3 +++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index aeb461b16..c2e7328b9 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -150,6 +150,10 @@ static struct quirk_entry quirk_asus_zenbook_duo_kbd = {
 	.key_wlan_event = ASUS_WMI_KEY_IGNORE,
 };
 
+static struct quirk_entry quirk_asus_gx651ar = {
+	.ignore_wlan_enable_event = true,
+};
+
 static struct quirk_entry quirk_asus_z13 = {
 	.key_wlan_event = ASUS_WMI_KEY_ARMOURY,
 	.tablet_switch_mode = asus_wmi_kbd_dock_devid,
@@ -562,6 +566,15 @@ static const struct dmi_system_id asus_quirks[] = {
 		},
 		.driver_data = &quirk_asus_z13,
 	},
+	{
+		.callback = dmi_matched,
+		.ident = "ASUS ROG Zephyrus Duo GX651AR",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUS"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "ROG Zephyrus Duo GX651AR"),
+		},
+		.driver_data = &quirk_asus_gx651ar,
+	},
 	{},
 };
 
@@ -687,7 +700,10 @@ static void asus_nb_wmi_key_filter(struct asus_wmi_driver *asus_wmi, int *code,
 	case 0x5D: /* Wireless console Toggle */
 	case 0x5E: /* Wireless console Enable / Keyboard Attach, Detach */
 	case 0x5F: /* Wireless console Disable / Special Key */
-		if (quirks->key_wlan_event)
+		/* The GX651AR reports event 0x5e on keyboard attach/detach. */
+		if (*code == 0x5E && quirks->ignore_wlan_enable_event)
+			*code = ASUS_WMI_KEY_IGNORE;
+		else if (quirks->key_wlan_event)
 			*code = quirks->key_wlan_event;
 		break;
 	}
diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h
index 5cd4392b9..b2d91e373 100644
--- a/drivers/platform/x86/asus-wmi.h
+++ b/drivers/platform/x86/asus-wmi.h
@@ -52,6 +52,9 @@ struct quirk_entry {
 	 */
 	int no_display_toggle;
 	u32 xusb2pr;
+
+	/* Ignore event 0x5e when it represents keyboard attach/detach. */
+	bool ignore_wlan_enable_event;
 };
 
 struct asus_wmi_driver {
-- 
2.56.0