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authorMark Pearson <mpearson-lenovo@squebb.ca>2025-05-16 22:33:37 -0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-06-04 14:42:25 +0200
commit513b27dbd126b8a838b601754cb3ae9cd91d2e95 (patch)
tree57edf0316e88a4f8792c7c0e75c5ffdea93d7024
parent871e44494f5d57377b0f75a961d2c4e085b6f40e (diff)
platform/x86: thinkpad_acpi: Ignore battery threshold change event notification
[ Upstream commit 29e4e6b4235fefa5930affb531fe449cac330a72 ] If user modifies the battery charge threshold an ACPI event is generated. Confirmed with Lenovo FW team this is only generated on user event. As no action is needed, ignore the event and prevent spurious kernel logs. Reported-by: Derek Barbosa <debarbos@redhat.com> Closes: https://lore.kernel.org/platform-driver-x86/7e9a1c47-5d9c-4978-af20-3949d53fb5dc@app.fastmail.com/T/#m5f5b9ae31d3fbf30d7d9a9d76c15fb3502dfd903 Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20250517023348.2962591-1-mpearson-lenovo@squebb.ca 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>
-rw-r--r--drivers/platform/x86/thinkpad_acpi.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index bcb0689101e2..8de0d3232e48 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -212,6 +212,7 @@ enum tpacpi_hkey_event_t {
/* Thermal events */
TP_HKEY_EV_ALARM_BAT_HOT = 0x6011, /* battery too hot */
TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012, /* battery critically hot */
+ TP_HKEY_EV_ALARM_BAT_LIM_CHANGE = 0x6013, /* battery charge limit changed*/
TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021, /* sensor too hot */
TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */
TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* windows; thermal table changed */
@@ -3942,6 +3943,10 @@ static bool hotkey_notify_6xxx(const u32 hkey,
pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n");
/* recommended action: immediate sleep/hibernate */
break;
+ case TP_HKEY_EV_ALARM_BAT_LIM_CHANGE:
+ pr_debug("Battery Info: battery charge threshold changed\n");
+ /* User changed charging threshold. No action needed */
+ return true;
case TP_HKEY_EV_ALARM_SENSOR_HOT:
pr_crit("THERMAL ALARM: a sensor reports something is too hot!\n");
/* recommended action: warn user through gui, that */