Comment # 44 on bug 56405 from Alex Deucher

(In reply to comment #43)
> (In reply to comment #42)
> >  	case CHIP_SUMO2:
> > -		rdev->config.evergreen.num_ses = 1;
> > +		rdev->config.evergreen.num_ses = 2;
> > 
> > None of the APUs have multiple SEs.
> 
> So it waste of time, to try that patch?

Please try it.  Your card is not a SUMO2.