linux-kernel - Re: [PATCH v6 0/2] Add support for Loongson1 DMA

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Date: Mon, 18 Mar 2024 15:42:30 +0000
From: Conor Dooley <conor@...nel.org>
To: Huacai Chen <chenhuacai@...nel.org>
Cc: Keguang Zhang <keguang.zhang@...il.com>, Vinod Koul <vkoul@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>, linux-mips@...r.kernel.org,
	dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 0/2] Add support for Loongson1 DMA

On Mon, Mar 18, 2024 at 10:26:51PM +0800, Huacai Chen wrote:
> Hi, Conor,
> 
> On Mon, Mar 18, 2024 at 7:28 PM Conor Dooley <conor@...nel.org> wrote:
> >
> > On Mon, Mar 18, 2024 at 03:31:59PM +0800, Huacai Chen wrote:
> > > On Mon, Mar 18, 2024 at 10:08 AM Keguang Zhang <keguang.zhang@...il.com> wrote:
> > > >
> > > > Hi Huacai,
> > > >
> > > > > Hi, Keguang,
> > > > >
> > > > > Sorry for the late reply, there is already a ls2x-apb-dma driver, I'm
> > > > > not sure but can they share the same code base? If not, can rename
> > > > > this driver to ls1x-apb-dma for consistency?
> > > >
> > > > There are some differences between ls1x DMA and ls2x DMA, such as
> > > > registers and DMA descriptors.
> > > > I will rename it to ls1x-apb-dma.
> > > OK, please also rename the yaml file to keep consistency.
> >
> > No, the yaml file needs to match the (one of the) compatible strings.
> OK, then I think we can also rename the compatible strings, if possible.

If there are no other types of dma controller on this device, I do not
see why would we add "apb" into the compatible as there is nothing to
differentiate this controller from.

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