Re: (subset) [PATCH 1/2] arm64: dts: rockchip: fix PMIC interrupt pin on ROCK Pi E

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Am Mittwoch, 19. Juni 2024, 22:07:25 CEST schrieb FUKAUMI Naoki:
> Hello,
> 
> On 6/20/24 04:31, Heiko Stuebner wrote:
> > On Wed, 19 Jun 2024 14:00:46 +0900, FUKAUMI Naoki wrote:
> >> use GPIO0_A2 as interrupt pin for PMIC. GPIO2_A6 was used for
> >> pre-production board.
> >>
> >>
> > 
> > Applied, thanks!
> > 
> > [1/2] arm64: dts: rockchip: fix PMIC interrupt pin on ROCK Pi E
> >        commit: 02afd3d5b9fa4ffed284c0f7e7bec609097804fc
> > 
> > 
> > Patch 2 is not appropriate, sorry.
> > 
> > The aliases are sorted this way since 2021 and the order is userspace-
> > facing. So for the last 3 years people have boards with the sdmmc as
> > mmc0 and changing this now would possibly break a number of boards.
> 
> this is the reason I didn't add Fixes tag. I think this change in next 
> major release is acceptable... but it's wrong?

Correct.

Because with that change, all people mounting /dev/mmcblk0p1 or
whatever in their system would break their userspace after a simple
kernel update.

And that falls under the "we don't break userspace" mantra.

People should be able to expect their system to keep booting with kernel
updates, without neededing to meticulously validate each kernel release.

Hence that mmc order needs to stay that way.


Heiko






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