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 of causes, affected models, and 'message-id'
from ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx :
AC plug/unplug:
X120e - CAAAujb5v9dHdbdxDVvhNJoG4UrZC1TgKqeB_zGpAy7q8kZHMEQ@xxxxxxxxxxxxxx
x121e - 20120817143459.GB3462@xxxxxxxxxxxxxxx
X220 - Confirmed by Richard Hartmann
X220i - 4F406274.7070807@xxxxxxxxx
X220t - 4F489F5B.9040705@xxxxxxxxxxxxxxx
X230 - CAKx4u7kqvVH0-gstomsiVYdGC0i6=bGxzaQ8sq9gbg76TGme3w@xxxxxxxxxxxxxx
T420 - 9c848ee30b006737d0534d906bab0cf6@xxxxxxxxxxxxxxxxxx
T420s - 20120608080824.GS25324@xxxxxxxxxxxxx
W520 - 20121008181050.GF2549@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Lid closed/openend:
X220 - 4F4124DF.5030205@xxxxxxxxx
Could not be confirmed by author
Signed-off-by: Richard Hartmann <richih.mailinglist@xxxxxxxxx>
---
drivers/platform/x86/thinkpad_acpi.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 75dd651..2645084 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 +3628,13 @@ 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:
+ pr_info("AC status has changed\n");
+ /* X120e, x121e, X220, X220i, X220t, X230, T420, T420s, W520:
+ * AC status changed; can be triggered by plugging or
+ * unplugging AC adapter, docking or undocking, or closing
+ * or opening the lid. */
+ break;
case TP_HKEY_EV_KEY_NUMLOCK:
case TP_HKEY_EV_KEY_FN:
--
1.7.10.4
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