RADEON_DFP1_ON 3533 drivers/gpu/drm/radeon/radeon_combios.c bios_5_scratch |= RADEON_DFP1_ON; RADEON_DFP1_ON 3538 drivers/gpu/drm/radeon/radeon_combios.c bios_5_scratch &= ~RADEON_DFP1_ON;