Commit a8c97530 authored by Yauhen Kharuzhy's avatar Yauhen Kharuzhy Committed by Rafael J. Wysocki
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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: default avatarYauhen Kharuzhy <jekhor@gmail.com>
Link: https://patch.msgid.link/20260211222242.4101162-1-jekhor@gmail.com


Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent d84e1733

drivers/acpi/x86/utils.c

+12 −0
Original line number Diff line number Diff line
@@ -81,6 +81,18 @@ static const struct override_status_id override_status_ids[] = { 
		DMI_MATCH(DMI_PRODUCT_NAME, "Mipad2"),

	      }),



	/*

	 * 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.