[PATCH AUTOSEL 5.10 06/10] platform/x86: asus-nb-wmi: Ignore unknown event 0xCF

Sasha Levin
2024-12-11T18:54:32Z

From: Armin Wolf <W_Armin@gmx.de>

[ Upstream commit e9fba20c29e27dc99e55e1c550573a114561bf8c ]

On the Asus X541UAK an unknown event 0xCF is emited when the charger
is plugged in. This is caused by the following AML code:

If (ACPS ())
{
ACPF = One
Local0 = 0x58
If (ATKP)
{
^^^^ATKD.IANE (0xCF)
}
}
Else
{
ACPF = Zero
Local0 = 0x57
}

Notify (AC0, 0x80) // Status Change
If (ATKP)
{
^^^^ATKD.IANE (Local0)
}

Sleep (0x64)
PNOT ()
Sleep (0x0A)
NBAT (0x80)

Ignore the 0xCF event to silence the unknown event warning.

Reported-by: Pau Espin Pedrol <pespin@espeweb.net>
Closes: https://lore.kernel.org/platform-driver-x86/54d4860b-ec9c-4992-acf6-db3f90388293@espeweb.net
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20241123224700.18530-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/platform/x86/asus-nb-wmi.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c
index 49505939352ae..224c1f1c271bc 100644
--- a/drivers/platform/x86/asus-nb-wmi.c
+++ b/drivers/platform/x86/asus-nb-wmi.c
@@ -574,6 +574,7 @@ static const struct key_entry asus_nb_wmi_keymap[] = {
{ KE_KEY, 0xC4, { KEY_KBDILLUMUP } },
{ KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } },
{ KE_IGNORE, 0xC6, }, /* Ambient Light Sensor notification */
+ { KE_IGNORE, 0xCF, }, /* AC mode */
{ KE_KEY, 0xFA, { KEY_PROG2 } }, /* Lid flip action */
{ KE_KEY, 0xBD, { KEY_PROG2 } }, /* Lid flip action on ROG xflow laptops */
{ KE_END, 0},
--
2.43.0