On 18/01/2023 09:01, Michael Walle wrote: > From: "han.xu" <han.xu@xxxxxxx> > > Hi, > >>>> unfortunately, the rx-sample-delay-ns property does not fit here, as we >>>> can only delay >>>> the sampling point between zero and three "half cycles" (or edges), not >>>> by an arbitrary >>>> number of nanoseconds. >>> >>> Why this is a problem for FSL but not for other platforms having exactly >>> the same constraints/property? >> >> Please use the common delay in DT and calculate to half cycle in driver, we have >> the similar discussion before for fspi controller delay settings. > > Do you mean [1]? There my suggestion was to use a -degrees property (because > it doesn't depend on the frequency). There wasn't any follow-up, or did I miss > something? > > -michael > > [1] https://lore.kernel.org/linux-spi/62f113a0cdb0d58bf04ab0b274912eb7@xxxxxxxx/ I think the patch using existing ns property (and calculating cycles or phase shift or whatever was needed) was merged. In such case please go the same way. Best regards, Krzysztof
