linux-kernel - Re: [PATCH v2] riscv: dts: thead: set dma-noncoherent to soc bus

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Date:   Thu, 21 Sep 2023 11:08:28 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Jisheng Zhang <jszhang@...nel.org>
Cc:     Conor Dooley <conor.dooley@...rochip.com>,
        Guo Ren <guoren@...nel.org>, Fu Wei <wefu@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Drew Fustini <dfustini@...libre.com>
Subject: Re: [PATCH v2] riscv: dts: thead: set dma-noncoherent to soc bus

On Thu, Sep 21, 2023 at 05:24:57PM +0800, Jisheng Zhang wrote:
> On Wed, Sep 20, 2023 at 09:36:19AM +0100, Conor Dooley wrote:
> > Hey Jisheng,
> > 
> > On Wed, Sep 13, 2023 at 04:44:18PM +0100, Conor Dooley wrote:
> > > On Wed, Sep 13, 2023 at 11:15:57PM +0800, Jisheng Zhang wrote:
> > > > On Tue, Sep 12, 2023 at 05:27:31PM +0100, Conor Dooley wrote:
> > > > > On Tue, Sep 12, 2023 at 03:22:32PM +0800, Jisheng Zhang wrote:
> > > > > > riscv select ARCH_DMA_DEFAULT_COHERENT by default, and th1520 isn't
> > > > > > dma coherent, so set dma-noncoherent to reflect this fact.
> > > > > > 
> > > > > > Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
> > > > > > Tested-by: Drew Fustini <dfustini@...libre.com>
> > > > > > ---
> > > > > > 
> > > > > > Since v1:
> > > > > >  - rebase on v6.6-rc1
> > > > > >  - collect Tested-by tag
> > > > > 
> > > > > Does this mean you're expecting me to take this?
> > > > 
> > > > Hi Conor,
> > > > 
> > > > I think I will take this and send PR to soc people. The reason
> > > > I send v2 is the rebasing on new rc1 and v1 wasn't in linux-riscv
> > > > mailist due to typo;
> > > 
> > > Great, thanks. Please ask SFR to add your tree to linux-next.
> 
> Hi Conor,
> 
> I'm not sure how to do this. When MAINTAINERS patch is merged, send
> an email to Stephen Rothwell, are these steps correct?

Sorta, yeah. You don't need to have the MAINTAINERS patch merged first
though, just send him a link to your tree and the branch name(s) & he
will include it in linux-next.

> > I lost my main x86 box over the weekend (looks like probably a dead
> > motherboard), so I may have missed a response to this.
> > 
> > Did you see this email? Additionally, can you add that git tree to the
> > maintainers entry for the thead devicetrees?
> 
> I just created a tree in
> git://git.kernel.org/pub/scm/linux/kernel/git/jszhang/linux.git
> 
> But it needs time for cgit to take place. I will send a patch
> once it appears.

Looks to be there for me now. Thanks for doing this!

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