[RFC v1 1/3] mmc: mmc_spi: allow for spi controllers incapable of getting as low as 400k

[Ulf Hansson]

On Thu, 20 Jun 2024 at 16:12, Conor Dooley <conor at kernel.org> wrote:
>
> On Thu, Jun 20, 2024 at 02:50:15PM +0200, Ulf Hansson wrote:
> > On Wed, 12 Jun 2024 at 17:48, Conor Dooley <conor at kernel.org> wrote:
> > >
> > > From: Conor Dooley <conor.dooley at microchip.com>
> > >
> > > Some controllers may not be able to reach a bus clock as low as 400 KHz
> > > due to a lack of sufficient divisors. In these cases, the SD card slot
> > > becomes non-functional as Linux continuously attempts to set the bus
> > > clock to 400 KHz. If the controller is incapable of getting that low,
> > > set its minimum frequency instead. While this may eliminate some SD
> > > cards, it allows those capable of operating at the controller's minimum
> > > frequency to be used.
> > >
> > > Signed-off-by: Conor Dooley <conor.dooley at microchip.com>
> >
> > Looks reasonable to me. I assume you intend to send a non-RFC for
> > this, that I can pick up?
>
> I do intend doing that. How soon depends on whether or not you are
> willing to take it on its own, or require it to come in a series with
> the spi driver changes.

I can pick it separately, if that makes sense to you.

Kind regards
Uffe