Re: [PATCH 1/3] dt-bindings: iio: adc: sophgo,cv18xx-saradc.yaml: Add Sophgo SARADC binding documentation

[Krzysztof Kozlowski <krzk@kernel.org>]

On 04/07/2024 10:52, Thomas Bonnefille wrote:
> 
> 
> On 7/4/24 10:39 AM, Krzysztof Kozlowski wrote:
>> On 04/07/2024 10:35, Thomas Bonnefille wrote:
>>> Hello Krzysztof,
>>> Thank you for your feedback
>>>
>>> On 7/3/24 7:08 AM, Krzysztof Kozlowski wrote:
>>>> On 02/07/2024 13:52, Thomas Bonnefille wrote:
>>>>> The Sophgo SARADC is a Successive Approximation ADC that can be found in
>>>>> the Sophgo SoC.
>>>>>
>>>>> Signed-off-by: Thomas Bonnefille <thomas.bonnefille@bootlin.com>
>>>>> ---
>>>>>    .../bindings/iio/adc/sophgo,cv18xx-saradc.yaml     | 51 ++++++++++++++++++++++
>>>>>    MAINTAINERS                                        |  5 +++
>>>>>    2 files changed, 56 insertions(+)
>>>>>
>>>>> diff --git a/Documentation/devicetree/bindings/iio/adc/sophgo,cv18xx-saradc.yaml b/Documentation/devicetree/bindings/iio/adc/sophgo,cv18xx-saradc.yaml
>>>>> new file mode 100644
>>>>> index 000000000000..21fd5dc8e24e
>>>>> --- /dev/null
>>>>> +++ b/Documentation/devicetree/bindings/iio/adc/sophgo,cv18xx-saradc.yaml
>>>>> @@ -0,0 +1,51 @@
>>>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>>>> +%YAML 1.2
>>>>> +---
>>>>> +$id: http://devicetree.org/schemas/iio/adc/sophgo,cv18xx-adc.yaml#
>>>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>>>> +
>>>>> +title: Sophgo 3 channels Successive Approximation Analog to Digital Converters
>>>>> +
>>>>> +maintainers:
>>>>> +  - Thomas Bonnefille <thomas.bonnefille@bootlin.com>
>>>>> +
>>>>> +description:
>>>>> +  Datasheet at https://github.com/sophgo/sophgo-doc/releases
>>>>> +
>>>>> +properties:
>>>>> +  compatible:
>>>>> +    const: sophgo,cv18xx-saradc
>>>>
>>>> Except that this was never tested... wild-cards are generally not allowed.
>>>>
>>>
>>> I realized I made a mistake when using the "make dt_binding_check"
>>> command, which led to some errors in this dt_binding. I have now
>>> addressed all of them, but I'm not sure I understand your comment.
>>>
>>> I don't see any wildcards in the YAML file. Could you please provide
>>> more details on what you expect?
>>
>> What is "xx"? Sounds like wildcard. I do not see such SoC compatible.
>>
> 
> The point of cv18xx is to have a single compatible for all SoCs of the 
> cv18xx series from Sophgo (cv1800b, cv1812h but also sg2000 and sg2002). 
> I used that as a reflection of the cv18xx.dtsi used for all those SoCs.
> 
> Should I create multiple compatible for all the SoCs of a same brand ?

See writing bindings (and numerous presentation on this topic).

Best regards,
Krzysztof