> > So it seems to me you are changing the documented default. You cannot > > do that, this is ABI. > > Right. I suppose we either need a disable value or an extra property. I > can add support for supplying (-1) from DT. Does that sounds ok to > everyone? I'm missing the big picture. Does the hardware you are adding not support delays? If so, rather than using the defaults, don't do anything. And if a value is supplied, -EINVAL? Andrew