Handle HKEY event generated on AC power change. The current message
asks users to submit data related to this event which leads to
a lot of confusion and noise on the mailing list.
The following is a list affected models and 'Message-Id'
from ibm-acpi-devel@lists.sourceforge.net of people who saw this
event when either plugging or unplugging the AC adapter or
docking or undocking their laptop.
X120e - caaaujb5v9dhdbdxdvvhnjog4urzc1tgkqeb_zgpay7q8kzh...@mail.gmail.com
X121e - 20120817143459.gb3...@x1.osrc.amd.com
X220 - Confirmed by Richard Hartmann
X220i - 4f406274.7070...@gmail.com
X220t - 4f489f5b.9040...@cs.tu-berlin.de
X230 - CAKx4u7kqvVH0-gstomsiVYdGC0i6=bgxzaq8sq9gbg76tgm...@mail.gmail.com
T420 - 9c848ee30b006737d0534d906bab0...@niklaas-baudet.net
T420s - 20120608080824.gs25...@hexapodia.org
W520 - 20121008181050.gf2...@ericlaptop.home.christensenplace.us
Signed-off-by: Richard Hartmann <richih.mailingl...@gmail.com>
---
drivers/platform/x86/thinkpad_acpi.c | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/x86/thinkpad_acpi.c
b/drivers/platform/x86/thinkpad_acpi.c
index 75dd651..15e2bba 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -209,9 +209,8 @@ enum tpacpi_hkey_event_t {
TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022, /* sensor critically hot */
TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030, /* thermal table changed */
- TP_HKEY_EV_UNK_6040 = 0x6040, /* Related to AC change?
- some sort of APM hint,
- W520 */
+ /* AC-related events */
+ TP_HKEY_EV_AC_CHANGED = 0x6040, /* AC status changed */
/* Misc */
TP_HKEY_EV_RFKILL_CHANGED = 0x7000, /* rfkill switch changed */
@@ -3629,6 +3628,12 @@ static bool hotkey_notify_6xxx(const u32 hkey,
"a sensor reports something is extremely hot!\n");
/* recommended action: immediate sleep/hibernate */
break;
+ case TP_HKEY_EV_AC_CHANGED:
+ /* X120e, X121e, X220, X220i, X220t, X230, T420, T420s, W520:
+ * AC status changed; can be triggered by plugging or
+ * unplugging AC adapter, docking or undocking. */
+
+ /* fallthrough */
case TP_HKEY_EV_KEY_NUMLOCK:
case TP_HKEY_EV_KEY_FN:
--
1.7.10.4
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