linux-kernel - Re: [PATCH v4 2/4] dt-bindings: soc: sophgo: Add top misc controller of CV18XX/SG200X series SoC

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Message-ID:
 <IA1PR20MB49538CDB75367C1FBBF85C79BB2D2@IA1PR20MB4953.namprd20.prod.outlook.com>
Date: Mon, 18 Mar 2024 16:35:52 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, 
	Inochi Amaoto <inochiama@...look.com>, Vinod Koul <vkoul@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.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: Jisheng Zhang <jszhang@...nel.org>, Liu Gui <kenneth.liu@...hgo.com>, 
	Jingbao Qiu <qiujingbao.dlmu@...il.com>, dlan@...too.org, dmaengine@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v4 2/4] dt-bindings: soc: sophgo: Add top misc controller
 of CV18XX/SG200X series SoC

On Mon, Mar 18, 2024 at 09:04:37AM +0100, Krzysztof Kozlowski wrote:
> On 18/03/2024 07:38, Inochi Amaoto wrote:
> > CV18XX/SG200X series SoCs have a special top misc system controller,
> > which provides register access for several devices. In addition to
> > register access, this system controller also contains some subdevices
> > (such as dmamux).
> > 
> > Add bindings for top misc controller of CV18XX/SG200X series SoC.
> > 
> > Signed-off-by: Inochi Amaoto <inochiama@...look.com>
> > ---
> >  .../soc/sophgo/sophgo,cv1800-top-syscon.yaml  | 57 +++++++++++++++++++
> >  1 file changed, 57 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
> > new file mode 100644
> > index 000000000000..009e45e520d9
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
> > @@ -0,0 +1,57 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800-top-syscon.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Sophgo CV1800/SG2000 SoC top system controller
> > +
> > +maintainers:
> > +  - Inochi Amaoto <inochiama@...look.com>
> > +
> > +description:
> > +  The Sophgo CV1800/SG2000 SoC top misc system controller provides
> > +  register access to configure related modules.
> > +
> > +properties:
> > +  compatible:
> > +    items:
> > +      - const: sophgo,cv1800-top-syscon
> > +      - const: syscon
> > +      - const: simple-mfd
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  "#address-cells":
> > +    const: 1
> > +
> > +  "#size-cells":
> > +    const: 1
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +
> > +additionalProperties:
> > +  type: object
> 
> You have schema for the child, don't you? So use it: add 'dma-router' to
> the properties with $ref. additionalProperties: false.
> 
> Explain the dependencies and merging bindings via one tree in the cover
> letter or commit changelog.
> 

Thanks for this suggestion. This is what I need.

> Best regards,
> Krzysztof
>