linux-kernel - Re: [PATCH v7 0/5] Add initial support for S32V234-EVB

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Message-ID: <20191026132657.GO14401@dragon>
Date:   Sat, 26 Oct 2019 21:26:59 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Stefan-gabriel Mirea <stefan-gabriel.mirea@....com>
Cc:     Greg KH <gregkh@...uxfoundation.org>,
        "corbet@....net" <corbet@....net>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will@...nel.org" <will@...nel.org>, Leo Li <leoyang.li@....com>,
        "jslaby@...e.com" <jslaby@...e.com>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v7 0/5] Add initial support for S32V234-EVB

On Wed, Oct 16, 2019 at 04:54:58PM +0000, Stefan-gabriel Mirea wrote:
> On 10/16/2019 4:17 PM, Greg KH wrote:
> > 
> > I've taken patch 3 in my tty-next tree.  The others should probably go
> > through an arm-specific tree, right?
> 
> Thank you very much, Greg! That was all for the tty tree.
> 
> I think that the other patches should go to the following trees:
> * git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git:
>     patches #1 and possibly #4 (as it covers arch/*/boot/dts/);
> * git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git:
>     patches #2, #5 and possibly #4 (as it covers arch/arm64/boot/dts/)
> * git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
>     possibly patch #4 (as it covers arch/arm64/boot/dts/freescale/fsl-*)
> 
> As a general question, would it be any chance to have the device tree
> included in v5.4 (along with its compatible documentation and config
> definition, without enablement)? That is, only the patches #1, #2 and
> #4, because #3 is a cosmetic change and #5 enables the new configs by
> default. That would complete a minimal support for S32V234-EVB, together
> with the LINFlexD UART driver which was accepted.
> 
> From the development process documentation[1]: "An occasional exception
> is made for drivers for previously-unsupported hardware; if they touch
> no in-tree code, they cannot cause regressions and should be safe to add
> at any time".
> 
> I know that it mentions only drivers and not device trees, but from the
> history is seems that there have also been dts/dtsi files added outside
> of merge windows, such as:
> * arch/riscv/boot/dts/sifive/fu540-c000.dtsi;
> * arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts;
> * arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts;
> * arch/xtensa/boot/dts/lx200mx.dts;
> * arch/xtensa/boot/dts/kc705.dts;
> * arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi;
> * arch/arm/boot/dts/omap3-beagle-xm-ab.dts;
> * arch/arm/boot/dts/at91-sama5d3_xplained.dts;
> * arch/arm/boot/dts/am335x-boneblack.dts;
> * arch/powerpc/boot/dts/charon.dts.
> 
> I am sorry if my question is inopportune, I am definitely not trying to
> rush anyone. I just ask because this has been under review for some
> time and all the feedback has been addressed. We would really appreciate
> to have this SoC and board supported in the following LTS release if
> there are no other issues.

Sorry, no.  It happens occasionally that non-fixing patches are merged
during -rc time, mostly because they are supposed to land mainline
during merge window, but missed the window for some reason, like
subsystem maintainers did not send pull request to Linus in time.
Also the patches are only taken in early -rc like rc2.

Shawn