On 28/02/2024 20:14, Frank Li wrote: > Some sai only connect one direction. So allow only "rx" or "tx" for > dma-names. "one direction" was already allowed. Explain really what is the different, e.g. you expect only TX? This applies to all your recent patches - they all have insufficient explanation. Often they explain what you are doing, but not why. > > Signed-off-by: Frank Li <Frank.Li@xxxxxxx> Best regards, Krzysztof