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FCL is a PTL-A, PTL-based platform. The driver is officially supported on the ACE architecture with clients utilizing it on distributions such as Android and Yocto. As software needs little to no changes to cover PTL alone it is preferable to have clear division: ace1.0 <- ace2.0 <- ace3.0. The code is maintainable and readable this way. And then we have validation point. intel-dsp-config remains intact (no selection changes for MTL/LNL) but still leaves window for the AVS-validation to have high code coverage. Unless you can bring technical arguments, 'NAK' does not apply. The requirements for the project state clearly - upstream the code for the architectures we do support. Kind regards, Czarek