On Tue, 2019-04-30 at 22:02 +0200, Martin Blumenstingl wrote: > > Thanks for effort but all this just maintain the blur around HS400 on amlogic. > > > > Let me rephrase it: > > Tuning (phase or resampling) is meant to compensate the clock round trip in UHS > > and HS200 modes. In HS400, this should be taken care of by the data strobe. > > But we have not been to enable this reliably enable this on amlogic chipset ... > I wasn't aware of this: so far I assumed that we're not setting the > phase correctly, end of the story. > thank you again for taking your time to explain this! No worries. There is the MMC in general, I think I understand it a bit now but I might still be mistaken about some stuff. Then there is the HW we have and the related black magic. I doubt this is the last update in this driver ... > > > ... and I believe we are back to the original commit message. > no need to update the description just to explain how HS400 works in > general, so feel free to use my: > Acked-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>