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authorMark Pearson <mpearson-lenovo@squebb.ca>2024-01-20 18:29:34 -0500
committerIlpo Järvinen <ilpo.jarvinen@linux.intel.com>2024-01-24 12:40:55 +0200
commit0959afbafaf8791a9810fba2c55a64dfdcc3b66e (patch)
treedf9f3f8555a78e588ee2e022f7b36d5c3eb92360
parent2cee4d0c82c023c9012a3a8814cc5c2bcc9b6db6 (diff)
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platform/x86: Support for mode FN key
New Thinkpads have added a 'Mode' Function key that on Windows allows you to choose the active profile (low-power, balanced, performance) Added suppoort for this hotkey (F8), and have it cycle through the options available. Tested on X1 Carbon G12. Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20240120232949.317337-1-mpearson-lenovo@squebb.ca Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
-rw-r--r--Documentation/admin-guide/laptops/thinkpad-acpi.rst7
-rw-r--r--drivers/platform/x86/thinkpad_acpi.c20
2 files changed, 25 insertions, 2 deletions
diff --git a/Documentation/admin-guide/laptops/thinkpad-acpi.rst b/Documentation/admin-guide/laptops/thinkpad-acpi.rst
index 98d304010170..7f674a6cfa8a 100644
--- a/Documentation/admin-guide/laptops/thinkpad-acpi.rst
+++ b/Documentation/admin-guide/laptops/thinkpad-acpi.rst
@@ -444,7 +444,9 @@ event code Key Notes
0x1008 0x07 FN+F8 IBM: toggle screen expand
Lenovo: configure UltraNav,
- or toggle screen expand
+ or toggle screen expand.
+ On newer platforms (2024+)
+ replaced by 0x131f (see below)
0x1009 0x08 FN+F9 -
@@ -504,6 +506,9 @@ event code Key Notes
0x1019 0x18 unknown
+0x131f ... FN+F8 Platform Mode change.
+ Implemented in driver.
+
... ... ...
0x1020 0x1F unknown
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index b769d9d60432..897d4cd9e5f4 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -166,6 +166,7 @@ enum tpacpi_hkey_event_t {
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 */
+ TP_HKEY_EV_PROFILE_TOGGLE = 0x131f, /* Toggle platform profile */
/* Reasons for waking up from S3/S4 */
TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304, /* undock requested, S3 */
@@ -3731,6 +3732,7 @@ static bool hotkey_notify_extended_hotkey(const u32 hkey)
switch (hkey) {
case TP_HKEY_EV_PRIVACYGUARD_TOGGLE:
case TP_HKEY_EV_AMT_TOGGLE:
+ case TP_HKEY_EV_PROFILE_TOGGLE:
tpacpi_driver_event(hkey);
return true;
}
@@ -11115,7 +11117,23 @@ static void tpacpi_driver_event(const unsigned int hkey_event)
else
dytc_control_amt(!dytc_amt_active);
}
-
+ if (hkey_event == TP_HKEY_EV_PROFILE_TOGGLE) {
+ switch (dytc_current_profile) {
+ case PLATFORM_PROFILE_LOW_POWER:
+ dytc_profile_set(NULL, PLATFORM_PROFILE_BALANCED);
+ break;
+ case PLATFORM_PROFILE_BALANCED:
+ dytc_profile_set(NULL, PLATFORM_PROFILE_PERFORMANCE);
+ break;
+ case PLATFORM_PROFILE_PERFORMANCE:
+ dytc_profile_set(NULL, PLATFORM_PROFILE_LOW_POWER);
+ break;
+ default:
+ pr_warn("Profile HKEY unexpected profile %d", dytc_current_profile);
+ }
+ /* Notify user space the profile changed */
+ platform_profile_notify();
+ }
}
static void hotkey_driver_event(const unsigned int scancode)