Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ff6cdfd7 authored by Yauhen Kharuzhy's avatar Yauhen Kharuzhy Committed by Rafael J. Wysocki
Browse files

ACPI / x86: Make PWM2 device always present at Lenovo Yoga Book 



Lenovo Yoga Book uses PWM2 for controlling keyboard backlight but this
device is hidden in the DSDT in Windows version of notebook (if OSID == 1).

Make this device always present for this notebook.

Signed-off-by: default avatarYauhen Kharuzhy <jekhor@gmail.com>
Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent d1393711

drivers/acpi/x86/utils.c

+5 −0
Original line number Diff line number Diff line
@@ -56,6 +56,11 @@ static const struct always_present_id always_present_ids[] = { 
	 */

	ENTRY("80860F09", "1", ICPU(INTEL_FAM6_ATOM_SILVERMONT), {}),

	ENTRY("80862288", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {}),



	/* Lenovo Yoga Book uses PWM2 for keyboard backlight control */

	ENTRY("80862289", "2", ICPU(INTEL_FAM6_ATOM_AIRMONT), {

			DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),

		}),

	/*

	 * The INT0002 device is necessary to clear wakeup interrupt sources

	 * on Cherry Trail devices, without it we get nobody cared IRQ msgs.