linux-kernel - [PATCH AUTOSEL 6.6 05/15] platform/x86: dell-wmi-base: Handle META key Lock/Unlock events

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Message-ID: <20241112103643.1653381-5-sashal@kernel.org>
Date: Tue, 12 Nov 2024 05:36:26 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Kurt Borja <kuurtb@...il.com>,
	Mario Limonciello <mario.limonciello@....com>,
	Pali Rohár <pali@...nel.org>,
	Hans de Goede <hdegoede@...hat.com>,
	Sasha Levin <sashal@...nel.org>,
	mjg59@...f.ucam.org,
	ilpo.jarvinen@...ux.intel.com,
	platform-driver-x86@...r.kernel.org
Subject: [PATCH AUTOSEL 6.6 05/15] platform/x86: dell-wmi-base: Handle META key Lock/Unlock events

From: Kurt Borja <kuurtb@...il.com>

[ Upstream commit ec61f0bb4feec3345626a2b93b970b6719743997 ]

Some Alienware devices have a key that locks/unlocks the Meta key. This
key triggers a WMI event that should be ignored by the kernel, as it's
handled by internally the firmware.

There is no known way of changing this default behavior. The firmware
would lock/unlock the Meta key, regardless of how the event is handled.

Tested on an Alienware x15 R1.

Signed-off-by: Kurt Borja <kuurtb@...il.com>
Reviewed-by: Mario Limonciello <mario.limonciello@....com>
Acked-by: Pali Rohár <pali@...nel.org>
Link: https://lore.kernel.org/r/20241031154441.6663-2-kuurtb@gmail.com
Reviewed-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/platform/x86/dell/dell-wmi-base.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/platform/x86/dell/dell-wmi-base.c b/drivers/platform/x86/dell/dell-wmi-base.c
index 24fd7ffadda95..841a5414d28a6 100644
--- a/drivers/platform/x86/dell/dell-wmi-base.c
+++ b/drivers/platform/x86/dell/dell-wmi-base.c
@@ -80,6 +80,12 @@ static const struct dmi_system_id dell_wmi_smbios_list[] __initconst = {
 static const struct key_entry dell_wmi_keymap_type_0000[] = {
 	{ KE_IGNORE, 0x003a, { KEY_CAPSLOCK } },
 
+	/* Meta key lock */
+	{ KE_IGNORE, 0xe000, { KEY_RIGHTMETA } },
+
+	/* Meta key unlock */
+	{ KE_IGNORE, 0xe001, { KEY_RIGHTMETA } },
+
 	/* Key code is followed by brightness level */
 	{ KE_KEY,    0xe005, { KEY_BRIGHTNESSDOWN } },
 	{ KE_KEY,    0xe006, { KEY_BRIGHTNESSUP } },
-- 
2.43.0