linux-kernel - Re: [PATCH RFC 1/3] dt-bindings: soc: sophgo: add TOP syscon for CV18XX/SG200X series SoC

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Message-ID: <20250625195858.GA2115486-robh@kernel.org>
Date: Wed, 25 Jun 2025 14:58:58 -0500
From: Rob Herring <robh@...nel.org>
To: Conor Dooley <conor@...nel.org>
Cc: Inochi Amaoto <inochiama@...il.com>,
	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>, Alexandre Ghiti <alex@...ti.fr>,
	Alexander Sverdlin <alexander.sverdlin@...il.com>,
	Yu Yuan <yu.yuan@...u.edu.cn>, Yixun Lan <dlan@...too.org>,
	Ze Huang <huangze@...t.edu.cn>,
	Thomas Bonnefille <thomas.bonnefille@...tlin.com>,
	devicetree@...r.kernel.org, sophgo@...ts.linux.dev,
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
	Longbin Li <looong.bin@...il.com>
Subject: Re: [PATCH RFC 1/3] dt-bindings: soc: sophgo: add TOP syscon for
 CV18XX/SG200X series SoC

On Thu, Jun 12, 2025 at 05:04:46PM +0100, Conor Dooley wrote:
> On Wed, Jun 11, 2025 at 04:24:49PM +0800, Inochi Amaoto wrote:
> > The Sophgo CV1800/SG2000 SoC top misc system controller provides register
> > access to configure related modules. It includes a usb2 phy and a dma
> > multiplexer.
> > 
> > Signed-off-by: Inochi Amaoto <inochiama@...il.com>
> > ---
> >  .../soc/sophgo/sophgo,cv1800b-top-syscon.yaml | 57 +++++++++++++++++++
> >  1 file changed, 57 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml
> > new file mode 100644
> > index 000000000000..e8093a558c4e
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml
> > @@ -0,0 +1,57 @@
> > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/soc/sophgo/sophgo,cv1800b-top-syscon.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Sophgo CV18XX/SG200X SoC top system controller
> > +
> > +maintainers:
> > +  - Inochi Amaoto <inochiama@...look.com>
> > +
> > +description:
> > +  The Sophgo CV18XX/SG200X SoC top misc system controller provides
> > +  register access to configure related modules.
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - items:
> > +          - const: sophgo,cv1800b-top-syscon
> > +          - const: syscon
> > +          - const: simple-mfd
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  "#address-cells":
> > +    const: 1
> > +
> > +  "#size-cells":
> > +    const: 1
> > +
> > +patternProperties:
> > +  "dma-router@[0-9a-f]+$":
> > +    $ref: /schemas/dma/sophgo,cv1800b-dmamux.yaml#
> 
> I think you're supposed to add "unevaluatedProperties: false" to each of
> these nodes.

Not necessary if the referenced schema has 
unevaluatedProperties/additionalProperties set to false. The tools check 
for this.

Rob