[Letux-kernel] omap_hsmmc RX DMA errors

Tony Lindgren tony at atomide.com
Mon Jan 9 06:58:08 CET 2023


* Adam Ford <aford173 at gmail.com> [230105 19:20]:
> On Thu, Jan 5, 2023 at 1:08 PM Adam Ford <aford173 at gmail.com> wrote:
> > On Thu, Jan 5, 2023 at 12:17 PM H. Nikolaus Schaller <hns at messlink.de> wrote:
> > > Am 05.01.2023 um 18:54 schrieb Adam Ford <aford173 at gmail.com>:
> > >
> > > Would there be an objection if I migrate the OMAP3.dtsi file to the
> > > newer driver?  I wasn't sure if there was a reason this family was
> > > being held back from the newer driver.
> > >
> > >
> > > AFAIR Tony wanted to retire the older driver anyways.
> >
> > That was my impression and it appears that the AM35x has already
> correction AM335x (not AM35x)
> > migrated to it.  I wasn't sure what was holding us back.  In theory,
> > we could add the compatible flags to the new driver and mark them as
> > deprecated so the new driver would work with older device trees if
> > there was push-back on changing the device trees.  I know sometimes
> > there are concerns about using older device trees and the interaction
> > with the compatible flags make it a bit more complex.

Things should be ready to flip the remaining SoCs to use sdhci so we
should do that.

The only thing I'm aware of is that sdhci will try to keep probing
also mmc instances that are not wired. So some board specific dts files
may need to set some mmc instances with status = "disabled". Or maybe
the sdhci driver can be configured to stop trying after some timeout.



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