linux-kernel - Re: [PATCH v1 1/3] dt-bindings: soc: sophgo: add TOP syscon for CV18XX/SG200X series SoC

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Message-ID: <ief5lt3mxa4epnlhwgsx7kvi556f3fo3gqff36hmzvitexlphx@ztpueijr5nb6>
Date: Fri, 17 Oct 2025 17:35:00 +0800
From: Longbin Li <looong.bin@...il.com>
To: Rob Herring <robh@...nel.org>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Chen Wang <unicorn_wang@...look.com>, 
	Inochi Amaoto <inochiama@...il.com>, Paul Walmsley <pjw@...nel.org>, 
	Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
	Alexandre Ghiti <alex@...ti.fr>, Alexander Sverdlin <alexander.sverdlin@...il.com>, 
	Yixun Lan <dlan@...too.org>, Thomas Bonnefille <thomas.bonnefille@...tlin.com>, 
	Ze Huang <huangze@...t.edu.cn>, devicetree@...r.kernel.org, sophgo@...ts.linux.dev, 
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v1 1/3] dt-bindings: soc: sophgo: add TOP syscon for
 CV18XX/SG200X series SoC

On Wed, Oct 15, 2025 at 08:41:44AM -0500, Rob Herring wrote:
> On Sun, Oct 12, 2025 at 10:25:52AM +0800, Longbin Li 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>
> > Signed-off-by: Longbin Li <looong.bin@...il.com>
> > ---
> >  .../soc/sophgo/sophgo,cv1800b-top-syscon.yaml | 59 +++++++++++++++++++
> >  1 file changed, 59 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..d1993f2156b4
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800b-top-syscon.yaml
> > @@ -0,0 +1,59 @@
> > +# 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
> 
> Also need 'ranges'
> 
> > +
> > +patternProperties:
> > +  "dma-router@154":
> 
> This allows 'foodma-router@...bar'. It's not a pattern as-is, but 
> generally we don't put fixed unit-addresses into the schema. So instead, 
> should be "^dma-router@[0-9a-f]+$".
> 
> > +    $ref: /schemas/dma/sophgo,cv1800b-dmamux.yaml#
> > +    unevaluatedProperties: false
> > +
> > +  "phy@48":
> 
> And similar here.
> 
> > +    $ref: /schemas/phy/sophgo,cv1800b-usb2-phy.yaml#
> > +    unevaluatedProperties: false
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - "#address-cells"
> > +  - "#size-cells"
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    syscon@...0000 {
> > +      compatible = "sophgo,cv1800b-top-syscon", "syscon", "simple-mfd";
> > +      reg = <0x03000000 0x1000>;
> > +      #address-cells = <1>;
> > +      #size-cells = <1>;
> 
> Please make the example complete with child nodes.
> 
> > +    };
> > +
> > +...
> > --
> > 2.51.0

Thanks, I will fix it.

longbin li