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| author | Hans de Goede <hdegoede@redhat.com> | 2022-06-04 15:06:18 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-09-03 13:17:26 +0300 |
| commit | fe7aebb40d42bf8e830019d6f57c47cf7d85aa61 (patch) | |
| tree | 26a48928686e3d2b15924992dd7ab70732b39c08 /drivers/acpi/Kconfig | |
| parent | b39be9f441f9d7320e6020bdf8ec1522d6c81d1e (diff) | |
| download | linux-fe7aebb40d42bf8e830019d6f57c47cf7d85aa61.tar.xz | |
ACPI: video: Add Nvidia WMI EC brightness control detection (v3)
On some new laptop designs a new Nvidia specific WMI interface is present
which gives info about panel brightness control and may allow controlling
the brightness through this interface when the embedded controller is used
for brightness control.
When this WMI interface is present and indicates that the EC is used,
then this interface should be used for brightness control.
Changes in v2:
- Use the new shared nvidia-wmi-ec-backlight.h header for the
WMI firmware API definitions
- ACPI_VIDEO can now be enabled on non X86 too,
adjust the Kconfig changes to match this.
Changes in v3:
- Use WMI_BRIGHTNESS_GUID define
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Dadap <ddadap@nvidia.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/acpi/Kconfig')
| -rw-r--r-- | drivers/acpi/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 7802d8846a8d..44ad4b6bd234 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -212,6 +212,7 @@ config ACPI_VIDEO tristate "Video" depends on BACKLIGHT_CLASS_DEVICE depends on INPUT + depends on ACPI_WMI || !X86 select THERMAL help This driver implements the ACPI Extensions For Display Adapters |