ATOM_S2_DISPLAY_ROTATION_180_DEGREE 6816 drivers/gpu/drm/amd/include/atombios.h #define ATOM_S2_DISPLAY_ROTATION_180_DEGREE   0x2
ATOM_S2_DISPLAY_ROTATION_180_DEGREE 5674 drivers/gpu/drm/radeon/atombios.h #define ATOM_S2_DISPLAY_ROTATION_180_DEGREE   0x2