Re: [PATCH] ARM: dts: am33xx: add aliases for mmc interfaces

[Tony Lindgren]

* Måns Rullgård <mans@xxxxxxxxx> [210129 11:40]:
> Tony Lindgren <tony@xxxxxxxxxxx> writes:
> 
> > * Mans Rullgard <mans@xxxxxxxxx> [210128 18:09]:
> >> Without DT aliases, the numbering of mmc interfaces is unpredictable.
> >> Adding them makes it possible to refer to devices consistently.  The
> >> popular suggestion to use UUIDs obviously doesn't work with a blank
> >> device fresh from the factory.
> >> 
> >> See fa2d0aa96941 "mmc: core: Allow setting slot index via device tree
> >> alias" for more discussion.
> >
> > Sounds good to me, but will wait a few days before applying to make sure
> > this is still what we have agreed on :)
> 
> If it helps the decision, my existing systems fail to boot without
> something like this due to the eMMC moving from /dev/mmcblk1 to mmcblk0,
> at least sometimes.  I guess the kernel cares deeply about not breaking
> userspace, except when it doesn't give a damn.
> 
> I've been fighting this problem in various forms for the last 10 years
> or so, and I was hoping it would finally be over.

Yes this issue has been bugging folks for long time. Applying into fixes
thanks.

Tony