cail_mc_write    2011 drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c 	atom_card_info->mc_write = cail_mc_write;
cail_mc_write     995 drivers/gpu/drm/radeon/radeon_device.c 	atom_card_info->mc_write = cail_mc_write;