Sorry for hijacking this thread. From: Jaehoon Chung <jh80.chung@xxxxxxxxxxx> Sent: Wednesday, November 24, 2021 10:54 AM To: Ulf Hansson; John Keeping Cc: linux-mmc@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx Subject: Re: [PATCH 2/2] mmc: dw_mmc: use standard "mmc" alias stem >>> The old "mshc" lookup is kept for backwards compatibility. >> >> The mshc alias is really weird! >> >> It looks like some leftover from when the dw_mmc controller supported >> multiple slots. This support was dropped a long time ago, simply >> because it never really worked - and it was not worth trying to. Only >> one slot per controller is supported. > >As Ulf mentioned, dw_mmc controller can be supported multiple slot. >But I didn't see its case to use multiple slot. And I had been done to drop a long time ago. > >mshc was used because of Mobile Storage Host Controller. I assume this means you are open to a rework for dw_mmc? I have a bigger patch for dw_mmc that I work on myself. I removed the slot functionality at the start because there is no way for me to verify that I did not break this feature in the meantime. But if it never worked and there is no platform for it, then removing this is fine for everyone? Otherwise I probably would submit my rework for staging. Regards, Christian= Hyperstone GmbH | Reichenaustr. 39a | 78467 Konstanz Managing Director: Dr. Jan Peter Berns. Commercial register of local courts: Freiburg HRB381782
