drm/gma500: Don't register backlight when another backlight should be used

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Before this commit when we want userspace to use the acpi_video backlight
device we register both the GPU's native backlight device and acpi_video's
firmware acpi_video# backlight device. This relies on userspace preferring
firmware type backlight devices over native ones.

Registering 2 backlight devices for a single display really is
undesirable, don't register the GPU's native backlight device when
another backlight device should be used.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220917205920.647212-5-hdegoede@redhat.com

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Hans de Goede 2022-09-17 22:59:19 +02:00

parent fbf3093466

commit a7b98d4dfe

1 changed files with 8 additions and 0 deletions

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drivers/gpu/drm/gma500/backlight.c

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