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platform/x86: thinkpad-acpi: Add support for hotkey 0x131a

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On some AMD platforms if you press FN+T it will toggle whether automatic
mode transitions are active.

Recognize this keycode and use it to toggle AMT.

Co-developed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20220603170212.164963-3-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Mark Pearson 2022-06-03 13:02:11 -04:00 committed by Hans de Goede
parent 46dcbc61b7
commit 867eb71318
1 changed files with 11 additions and 0 deletions

11
drivers/platform/x86/thinkpad_acpi.c
View File

@ -159,6 +159,7 @@ enum tpacpi_hkey_event_t {
TP_HKEY_EV_VOL_DOWN = 0x1016, /* Volume down or unmute */
TP_HKEY_EV_VOL_MUTE = 0x1017, /* Mixer output mute */
TP_HKEY_EV_PRIVACYGUARD_TOGGLE = 0x130f, /* Toggle priv.guard on/off */
TP_HKEY_EV_AMT_TOGGLE = 0x131a, /* Toggle AMT on/off */
/* Reasons for waking up from S3/S4 */
TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */
@ -3735,6 +3736,7 @@ static bool hotkey_notify_extended_hotkey(const u32 hkey)
switch (hkey) {
case TP_HKEY_EV_PRIVACYGUARD_TOGGLE:
case TP_HKEY_EV_AMT_TOGGLE:
tpacpi_driver_event(hkey);
return true;
}
@ -11038,6 +11040,15 @@ static void tpacpi_driver_event(const unsigned int hkey_event)
if (changed)
drm_privacy_screen_call_notifier_chain(lcdshadow_dev);
}
if (hkey_event == TP_HKEY_EV_AMT_TOGGLE) {
/* If we're enabling AMT we need to force balanced mode */
if (!dytc_amt_active)
/* This will also set AMT mode enabled */
dytc_profile_set(NULL, PLATFORM_PROFILE_BALANCED);
else
dytc_control_amt(!dytc_amt_active);
}
}
static void hotkey_driver_event(const unsigned int scancode)