[PATCH] ARM: dts: fix MMC2 regulators for Exynos5420 Arndale Octa board

Arnd Bergmann arnd at arndb.de
Wed Oct 8 11:28:31 PDT 2014


On Wednesday 08 October 2014 08:29:16 Doug Anderson wrote:
> 
> On Wed, Oct 8, 2014 at 8:20 AM, Arnd Bergmann <arnd at arndb.de> wrote:
> > Why does it cause a regression though? Does this mean you are breaking
> > any boot with an old DT file and a new kernel? That would be very
> > bad, the driver is supposed to keep working with an existing dtb.
> 
> The old dts file specified completely the wrong regulator.  It
> happened that the old code didn't really care, but when the code was
> fixed to care then things broke.  If we need to keep old dts files
> working then the most sensible place to do it would be in a "fixup old
> broken device trees" stage somewhere in kernel boot.

Ok, got it. I guess it's better to apply this one first then.

	Arnd



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