cail_ioreg_read  2003 drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c 		atom_card_info->ioreg_read = cail_ioreg_read;
cail_ioreg_read   987 drivers/gpu/drm/radeon/radeon_device.c 		atom_card_info->ioreg_read = cail_ioreg_read;