amdgpu_dm_get_encoder_crtc_mask
aencoder->base.possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev);
int amdgpu_dm_get_encoder_crtc_mask(struct amdgpu_device *adev);
encoder->possible_crtcs = amdgpu_dm_get_encoder_crtc_mask(adev);
amdgpu_dm_get_encoder_crtc_mask(dm->adev));