NISLANDS_MAX_NO_VREG_STEPS  797 drivers/gpu/drm/amd/amdgpu/si_dpm.h #define NISLANDS_MAX_NO_VREG_STEPS 32
NISLANDS_MAX_NO_VREG_STEPS  159 drivers/gpu/drm/radeon/nislands_smc.h #define NISLANDS_MAX_NO_VREG_STEPS 32