• Hans de Goede's avatar
    efi/bgrt: Drop BGRT status field reserved bits check · 555c2ac6
    Hans de Goede authored
    [ Upstream commit a483fcab38b43fb34a7f12ab1daadd3907f150e2 ]
    
    Starting with ACPI 6.2 bits 1 and 2 of the BGRT status field are no longer
    reserved. These bits are now used to indicate if the image needs to be
    rotated before being displayed.
    
    The first device using these bits has now shown up (the GPD MicroPC) and
    the reserved bits check causes us to reject the valid BGRT table on this
    device.
    
    Rather then changing the reserved bits check, allowing only the 2 new bits,
    instead just completely remove it so that we do not end up with a similar
    problem when more bits are added in the future.
    Signed-off-by: 's avatarHans de Goede <hdegoede@redhat.com>
    Signed-off-by: 's avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
    Signed-off-by: 's avatarSasha Levin <sashal@kernel.org>
    555c2ac6
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