This is a note to let you know that I've just added the patch titled
platform/x86: toshiba_acpi: Add quirk for buttons on Z830
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
platform-x86-toshiba_acpi-add-quirk-for-buttons-on-z.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8e9cd55ec74c2a8356a104184ce0816aca35881a
Author: Arvid Norlander <lkml@xxxxxxxxx>
Date: Wed Jan 31 12:16:41 2024 +0100
platform/x86: toshiba_acpi: Add quirk for buttons on Z830
[ Upstream commit 23f1d8b47d125dcd8c1ec62a91164e6bc5d691d0 ]
The Z830 has some buttons that will only work properly as "quickstart"
buttons. To enable them in that mode, a value between 1 and 7 must be
used for HCI_HOTKEY_EVENT. Windows uses 0x5 on this laptop so use that for
maximum predictability and compatibility.
As there is not yet a known way of auto detection, this patch uses a DMI
quirk table. A module parameter is exposed to allow setting this on other
models for testing.
Signed-off-by: Arvid Norlander <lkml@xxxxxxxxx>
Tested-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Reviewed-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240131111641.4418-3-W_Armin@xxxxxx
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 291f14ef67024..2a5a651235fe6 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -57,6 +57,11 @@ module_param(turn_on_panel_on_resume, int, 0644);
MODULE_PARM_DESC(turn_on_panel_on_resume,
"Call HCI_PANEL_POWER_ON on resume (-1 = auto, 0 = no, 1 = yes");
+static int hci_hotkey_quickstart = -1;
+module_param(hci_hotkey_quickstart, int, 0644);
+MODULE_PARM_DESC(hci_hotkey_quickstart,
+ "Call HCI_HOTKEY_EVENT with value 0x5 for quickstart button support (-1 = auto, 0 = no, 1 = yes");
+
#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
/* Scan code for Fn key on TOS1900 models */
@@ -136,6 +141,7 @@ MODULE_PARM_DESC(turn_on_panel_on_resume,
#define HCI_ACCEL_MASK 0x7fff
#define HCI_ACCEL_DIRECTION_MASK 0x8000
#define HCI_HOTKEY_DISABLE 0x0b
+#define HCI_HOTKEY_ENABLE_QUICKSTART 0x05
#define HCI_HOTKEY_ENABLE 0x09
#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
#define HCI_LCD_BRIGHTNESS_BITS 3
@@ -2730,10 +2736,15 @@ static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
return -ENODEV;
/*
+ * Enable quickstart buttons if supported.
+ *
* Enable the "Special Functions" mode only if they are
* supported and if they are activated.
*/
- if (dev->kbd_function_keys_supported && dev->special_functions)
+ if (hci_hotkey_quickstart)
+ result = hci_write(dev, HCI_HOTKEY_EVENT,
+ HCI_HOTKEY_ENABLE_QUICKSTART);
+ else if (dev->kbd_function_keys_supported && dev->special_functions)
result = hci_write(dev, HCI_HOTKEY_EVENT,
HCI_HOTKEY_SPECIAL_FUNCTIONS);
else
@@ -3257,7 +3268,14 @@ static const char *find_hci_method(acpi_handle handle)
* works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
* the configured brightness level.
*/
-static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
+#define QUIRK_TURN_ON_PANEL_ON_RESUME BIT(0)
+/*
+ * Some Toshibas use "quickstart" keys. On these, HCI_HOTKEY_EVENT must use
+ * the value HCI_HOTKEY_ENABLE_QUICKSTART.
+ */
+#define QUIRK_HCI_HOTKEY_QUICKSTART BIT(1)
+
+static const struct dmi_system_id toshiba_dmi_quirks[] = {
{
/* Toshiba Portégé R700 */
/* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
@@ -3265,6 +3283,7 @@ static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
},
+ .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
},
{
/* Toshiba Satellite/Portégé R830 */
@@ -3274,6 +3293,7 @@ static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
},
+ .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
},
{
/* Toshiba Satellite/Portégé Z830 */
@@ -3281,6 +3301,7 @@ static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
},
+ .driver_data = (void *)(QUIRK_TURN_ON_PANEL_ON_RESUME | QUIRK_HCI_HOTKEY_QUICKSTART),
},
};
@@ -3289,6 +3310,8 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
struct toshiba_acpi_dev *dev;
const char *hci_method;
u32 dummy;
+ const struct dmi_system_id *dmi_id;
+ long quirks = 0;
int ret = 0;
if (toshiba_acpi)
@@ -3441,8 +3464,15 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
}
#endif
+ dmi_id = dmi_first_match(toshiba_dmi_quirks);
+ if (dmi_id)
+ quirks = (long)dmi_id->driver_data;
+
if (turn_on_panel_on_resume == -1)
- turn_on_panel_on_resume = dmi_check_system(turn_on_panel_on_resume_dmi_ids);
+ turn_on_panel_on_resume = !!(quirks & QUIRK_TURN_ON_PANEL_ON_RESUME);
+
+ if (hci_hotkey_quickstart == -1)
+ hci_hotkey_quickstart = !!(quirks & QUIRK_HCI_HOTKEY_QUICKSTART);
toshiba_wwan_available(dev);
if (dev->wwan_supported)
