thinkpad-acpi: drop HKEY event 0x5010
HKEY event 0x5010 is useless to us: old ThinkPads don't issue it. Newer
ThinkPads won't issue it anymore. And all ThinkPads issue 0x1010 and
0x1011 events.
Just silently drop it instead of sending it to userspace.
Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index 6d03487..f635fb0 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -525,6 +525,7 @@
0x2305 System is waking up from suspend to eject bay
0x2404 System is waking up from hibernation to undock
0x2405 System is waking up from hibernation to eject bay
+0x5010 Brightness level changed/control event
The above events are never propagated by the driver.
@@ -532,7 +533,6 @@
0x4003 Undocked (see 0x2x04), can sleep again
0x500B Tablet pen inserted into its storage bay
0x500C Tablet pen removed from its storage bay
-0x5010 Brightness level changed (newer Lenovo BIOSes)
The above events are propagated by the driver.
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 1b4d6f6..66ba5f5 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -3305,7 +3305,6 @@
*ignore_acpi_ev = false;
switch (hkey) {
- case 0x5010: /* Lenovo new BIOS: brightness changed */
case 0x500b: /* X61t: tablet pen inserted into bay */
case 0x500c: /* X61t: tablet pen removed from bay */
return true;
@@ -3317,9 +3316,10 @@
*send_acpi_ev = false;
return true;
- case 0x5001:
- case 0x5002:
- /* LID switch events. Do not propagate */
+ case 0x5001: /* Lid close */
+ case 0x5002: /* Lid open */
+ case 0x5010: /* brightness control */
+ /* do not propagate these events */
*ignore_acpi_ev = true;
return true;