linux-kernel - Re: [PATCH v9 1/3] dt-bindings: dmaengine: Add dma multiplexer for CV18XX/SG200X series SoC

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Message-ID:
 <IA1PR20MB49531EAFC7868178634ECEB3BB842@IA1PR20MB4953.namprd20.prod.outlook.com>
Date: Sun, 11 Aug 2024 13:15:06 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, 
	Inochi Amaoto <inochiama@...look.com>, Vinod Koul <vkoul@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Chen Wang <unicorn_wang@...look.com>, Paul Walmsley <paul.walmsley@...ive.com>, 
	Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>
Cc: dmaengine@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v9 1/3] dt-bindings: dmaengine: Add dma multiplexer for
 CV18XX/SG200X series SoC

On Mon, Aug 05, 2024 at 07:32:17PM GMT, Krzysztof Kozlowski wrote:
> On 02/08/2024 10:32, Inochi Amaoto wrote:
> > The DMA IP of Sophgo CV18XX/SG200X is based on a DW AXI CORE, with
> > an additional channel remap register located in the top system control
> > area. The DMA channel is exclusive to each core.
> > 
> > In addition, the DMA multiplexer is a subdevice of system controller,
> > so this binding only contains necessary properties for the multiplexer
> > itself.
> > 
> > Add the dmamux binding for CV18XX/SG200X series SoC.
> > 
> > Signed-off-by: Inochi Amaoto <inochiama@...look.com>
> > ---
> >  .../bindings/dma/sophgo,cv1800-dmamux.yaml    | 51 +++++++++++++++++++
> >  1 file changed, 51 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
> 
> Filename should match compatible.
> 
> > 
> > diff --git a/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml b/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
> > new file mode 100644
> > index 000000000000..11a098ed138a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/dma/sophgo,cv1800-dmamux.yaml
> > @@ -0,0 +1,51 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/dma/sophgo,cv1800-dmamux.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Sophgo CV1800/SG200 Series DMA multiplexer
> > +
> > +maintainers:
> > +  - Inochi Amaoto <inochiama@...look.com>
> > +
> > +description: |
> 
> Do not need '|' unless you need to preserve formatting.
> 
> > +  The DMA multiplexer of CV1800 is a subdevice of the system
> > +  controller. It support mapping 8 channels, but each channel
> > +  can be mapped only once.
> > +
> 
> 
> 
> Best regards,
> Krzysztof
> 

Thanks

Regard,
Inochi