diff options
| author | Yauhen Kharuzhy <jekhor@gmail.com> | 2026-02-12 00:22:42 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-02-12 12:40:13 +0100 |
| commit | a8c975302868c716afef0f50467bebbd069a35b8 (patch) | |
| tree | d2700f5f5a1d11b8768f489f9054addd6c8d0f6e /drivers/acpi/x86 | |
| parent | d84e173311c4f0b0300755e6445f3224d252eeed (diff) | |
| download | lwn-a8c975302868c716afef0f50467bebbd069a35b8.tar.gz lwn-a8c975302868c716afef0f50467bebbd069a35b8.zip | |
ACPI: x86: Force enabling of PWM2 on the Yogabook YB1-X90
The PWM2 on YB1-X90 tablets is used for keyboard backlight control but
it is disabled in the ACPI DSDT table. Add it to the override_status_ids
list to allow keyboard function control driver
(drivers/platform/x86/lenovo/yogabook.c) to use it.
Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
Link: https://patch.msgid.link/20260211222242.4101162-1-jekhor@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/x86')
| -rw-r--r-- | drivers/acpi/x86/utils.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index 4ee30c2897a2..418951639f51 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -82,6 +82,18 @@ static const struct override_status_id override_status_ids[] = { }), /* + * Lenovo Yoga Book uses PWM2 for touch keyboard backlight control. + * It needs to be enabled only for the Android device version (YB1-X90* + * aka YETI-11); the Windows version (YB1-X91*) uses ACPI control + * methods. + */ + PRESENT_ENTRY_HID("80862289", "2", INTEL_ATOM_AIRMONT, { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"), + DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"), + }), + + /* * The INT0002 device is necessary to clear wakeup interrupt sources * on Cherry Trail devices, without it we get nobody cared IRQ msgs. */ |