Hello Dmitry, On Mon, May 29, 2023 at 3:49 PM Dmitry Rokosov <ddrokosov@xxxxxxxxxxxxxx> wrote: > > Hello Martin, > > As I promised before, I'm now back with the vendor's reply regarding > AUDDDS. The information is still incomplete, but I have provided the > available details below. Please take a look. Great, thank you for following up! [...] > AUDDDS is a direct digital synthesizer used as a clock source. It is > not used as default. You need to modify some clk registers in dts to > enable it. Basically, it is used for audio. > > In A1 design, you can use AUD DDS as a clock source and it is not > necessary. It is not used in the Amlogic default setting. > > According to the vendor, it is not necessary and is currently disabled > by default. While we don't have much information about AUDDDS, the > vendor suggests that it's not a commonly used clock object in A1 > projects and it may be skipped if not needed. My goal is to make the dt-bindings match the hardware implementation... > Based on all above information, I suppose we can skip it now. ...but in this case we simply don't have enough information (other than some register names and a high level description that it can be used as a clock) to do that. I still think we did the best we could for now, so I agree with you: let's skip it for now (and hope that retrofitting it later - if we ever need it - won't be a problem). Best regards, Martin
