ACPI / x86: Drop PWM2 device on Lenovo Yoga Book from always present table

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It turns out that there is a WMI object which controls the PWM2 device
used for the keyboard backlight and that WMI object also provides some
other useful functionality.

The upcoming lenovo-yogabook-wmi driver will offer both backlight
control and the other functionality, so there no longer is a need
to have the lpss-pwm driver binding to PWM2 for backlight control;
and this is now actually undesirable because this will cause both
the WMI code and the lpss-pwm driver to poke at the same PWM
controller.

Drop the always-present quirk for the PWM2 ACPI-device, so that the
 lpss-pwm controller will no longer bind to it.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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Hans de Goede 2021-11-22 18:05:30 +01:00 • committed by Rafael J. Wysocki

parent d58071a8a7

commit d431dfb764

1 changed files with 0 additions and 4 deletions

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drivers/acpi/x86/utils.c

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