> CONFIG_REGULATOR is not enabled in arm-randconfig-r111-20250328 that is leading > to this build issue. > > I will send a fix by "select REGULATOR" in config MMC_SDHI What about using MMC_SDHI_INTERNAL_DMAC? So we leave out at least older SDHI instances. Ideally, we would say "select ... if " but this will easily be missed in updates. Maybe the above is a fair compromise. Those systems will likely have regulators enabled anyhow.