linux-kernel - Re: [PATCH v3 1/2] dt-bindings: clock: sophgo: Add top misc controller of CV18XX/SG200X series SoC

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Message-ID:
 <PH7PR20MB4962ADC17704683D90B8BE13BB502@PH7PR20MB4962.namprd20.prod.outlook.com>
Date: Tue, 20 Feb 2024 18:37:36 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Inochi Amaoto <inochiama@...look.com>,
	Rob Herring <robh@...nel.org>
Cc: 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>,
	Jisheng Zhang <jszhang@...nel.org>,
	Liu Gui <kenneth.liu@...hgo.com>,
	Jingbao Qiu <qiujingbao.dlmu@...il.com>,
	dlan@...too.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v3 1/2] dt-bindings: clock: sophgo: Add top misc controller of CV18XX/SG200X series SoC

>On 16/02/2024 00:56, Inochi Amaoto wrote:
>>> On Wed, Feb 14, 2024 at 02:33:14PM +0800, 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  | 40 +++++++++++++++++++
>>>>  1 file changed, 40 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..619237532801
>>>> --- /dev/null
>>>> +++ b/Documentation/devicetree/bindings/soc/sophgo/sophgo,cv1800-top-syscon.yaml
>>>> @@ -0,0 +1,40 @@
>>>> +# 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
>>>
>>> You have to define child nodes to be a simple-mfd.
>>>
>>> You could drop it, but I now suspect your binding is incomplete.
>>>
>>> Rob
>>
>> Hi Rob,
>>
>> I have a small questions: Can I drop "simple-mfd" and just add it
>> when the new subdevice is added? I know the binding is just a example,
>
>No, because bindings should be complete.
>
>
>Best regards,
>Krzysztof
>

Thanks. And please see
https://lore.kernel.org/linux-kernel/PH7PR20MB49624AFE44E26F26490DC827BB502@PH7PR20MB4962.namprd20.prod.outlook.com/T/#t.
This new patch series includes this binding.