diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2021-11-22 18:05:30 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-12-01 20:14:25 +0100 |
| commit | d431dfb764b145369be820fcdfd50f2159b9bbc2 (patch) | |
| tree | 0ba8b5f18479307ad58059144361d144567774e4 /drivers | |
| parent | d58071a8a76d779eedab38033ae4c821c30295a5 (diff) | |
ACPI / x86: Drop PWM2 device on Lenovo Yoga Book from always present table
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/x86/utils.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index f22f23933063..3bcac98f6eca 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -54,10 +54,6 @@ static const struct always_present_id always_present_ids[] = { ENTRY("80860F09", "1", X86_MATCH(ATOM_SILVERMONT), {}), ENTRY("80862288", "1", X86_MATCH(ATOM_AIRMONT), {}), - /* Lenovo Yoga Book uses PWM2 for keyboard backlight control */ - ENTRY("80862289", "2", X86_MATCH(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. |