Re: [PATCH 4.19.y-cip 01/12] arm64: dts: renesas: r8a774a1-hihope-rzg2m[-ex/-ex-idk-1110wr]: Rename HiHope RZ/G2M boards

Biju Das <biju.das.jz@...>

Hi Pavel,

Thanks for the feedback.

Subject: Re: [PATCH 4.19.y-cip 01/12] arm64: dts: renesas: r8a774a1-hihope-
rzg2m[-ex/-ex-idk-1110wr]: Rename HiHope RZ/G2M boards


I believe it would be better to always use explicit revision in
these cases; anything else is fairly confusing, as kernel update
breaks your setup (aka a regresssion).

Now, if -rev2 had few copies, and people really have -rev4, there
will not be much breakage. But imagine if rare -rev5 is released in

But mainline already made the choice. I'd just prefer not making
same choice in future.

Now, what to do here? One way would be to apply a series, but add a
README.cip file explaining incompatible change (and any future stuff
people need to know).
OK. Either README.cip or " by including more information on the reference
hardware and test information on CIP wiki." as suggested by Nobuhiro.
Please let us know, How do we want to proceed?
I guess we should really have README file in the tree, explaining potential
compatibility issues and anything unusual happening in the tree. I went
through old changelogs, and collected these for 4.19

* -cip3: MDS sampling vulnerability fixes

This release includes many CVE fixes including MDS (Microarchitectural Data
Sampling: CVE-2018-12130, CVE-2018-12126, CVE-2018-12127, CVE-2019-
11091). These fixes were more extensive and harder to review than usual for
-stable tree.

* -cip9: m57621-mmc driver was removed

m57621-mmc driver was removed due to uncertainty about its licensing.

* -cip34: Support for Renesas RZ/G2[MN] revision 4 board

In -cip34, support for revision 4 of the board was merged. After the merge,
r8a774a1-hihope-rzg2m*.dtb files are suitable for revision 4 of the board; if
you want to produce dtb files for revision 2 of the board, append -rev2 to the
file names.


Does that sound ok?
Yes, It looks good to me.


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