ATOM_BIOS_INFO_DUAL_CRTC_SUPPORT 2882 drivers/gpu/drm/amd/include/atombios.h #define ATOM_BIOS_INFO_DUAL_CRTC_SUPPORT            0x0002
ATOM_BIOS_INFO_DUAL_CRTC_SUPPORT 2441 drivers/gpu/drm/radeon/atombios.h #define ATOM_BIOS_INFO_DUAL_CRTC_SUPPORT            0x0002