[PATCH] platform/x86: lg-laptop: Fix input of super key

[Armin Wolf]

From: Helian Caumeil <helian.caumeil@clever.cloud>

Some devices emit special event codes when the super key is pressed.
Mapping those events onto KEY_UNKNOWN by the sparse keymap seems to
confuse userspace, causing duplicated super key input events.

Prevent this by ignoring those event codes.

Signed-off-by: Helian Caumeil <helian.caumeil@clever.cloud>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=222161
Co-developed-by: Armin Wolf <W_Armin@xxxxxx>
Signed-off-by: Armin Wolf <W_Armin@xxxxxx>
---
 drivers/platform/x86/lg-laptop.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/platform/x86/lg-laptop.c b/drivers/platform/x86/lg-laptop.c
index 36ad1e269443..49e3029d4b95 100644
--- a/drivers/platform/x86/lg-laptop.c
+++ b/drivers/platform/x86/lg-laptop.c
@@ -138,6 +138,10 @@ static const struct key_entry wmi_keymap[] = {
 	{ KE_IGNORE,	0x30010001,	{ KEY_UNKNOWN }},
 	/* Change fan mode */
 	{ KE_KEY,	0x30010051,	{ KEY_PERFORMANCE }},
+	/* Super key pressed */
+	{ KE_IGNORE,    0x30020000,     { KEY_LEFTMETA }},
+	/* Super key released */
+	{ KE_IGNORE,    0x30020001,     { KEY_LEFTMETA }},
 	/* Disable camera */
 	{ KE_KEY,	0x40020000,	{ KEY_CAMERA_ACCESS_TOGGLE }},
 	/* Mute microphone */
-- 
2.56.0