NISLANDS_SMC_VOLTAGEMASK_MAX   86 drivers/gpu/drm/amd/amdgpu/si_dpm.h #define NISLANDS_SMC_VOLTAGEMASK_MAX   4
NISLANDS_SMC_VOLTAGEMASK_MAX  149 drivers/gpu/drm/radeon/nislands_smc.h #define NISLANDS_SMC_VOLTAGEMASK_MAX   4