ATOM_SUB_FUNCTION_GET_CRITICAL_STATE 8254 drivers/gpu/drm/amd/include/atombios.h #define ATOM_SUB_FUNCTION_GET_CRITICAL_STATE    0x0300          // Sub function 03
ATOM_SUB_FUNCTION_GET_CRITICAL_STATE 6984 drivers/gpu/drm/radeon/atombios.h #define ATOM_SUB_FUNCTION_GET_CRITICAL_STATE    0x0300          // Sub function 03