Hi Richard > > As I mentioned in v3, adding *general* pll to common card driver is > > maybe difficult. > > You did say that. But you did not say why. > Can you be more specific about what problem you see with adding it > to the generic driver? > > > Using your own customized audio-graph-card driver is better idea, > > instead of adding code to common driver. > > I just don't want to duplicate code without good reason. Ahh, sorry for my unclear comment. I think "PLL settings" is very board/platform specific, so, adding such code to common driver will be issue in the future. This is the reason why I don't want add it to audio-graph-card. But, as I mentioned above and Sameer is already doing, you can reuse audio-graph-card and customize it. Reuse audio-graph-card + Use your own PLL code = your own customized audio-graph-card You can reuse audio-graph-card code by calling graph_parse_of(), and customize before/after that. I think no duplicate code is needed. I hope it can help you. Thank you for your help !! Best regards --- Kuninori Morimoto