No, I simply want to stop clocks to all unused peripherals to save power in a battery RX project.
I will eventually use all or parts of the Snooze library to implement a full standby. However I also have an intermediate LP mode where the main Audio DSP path (I2S in/out, Hilbert FIR, mixers, AGC control) must be operational, but all "input only"/non-essential DSP routines (FFT calculation/display, various estimators, optical encoder power supply, etc) are disabled. In this mode the RX runs fine at the reduced 24MHz CPU speed. The UI wake-up is instant on any button action in the LP mode.