linux-kernel - Re: [PATCH 1/2] dt-bindings: hwmon: add common properties with label

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Date: Sat, 24 Feb 2024 10:24:08 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Rob Herring <robh@...nel.org>
Cc: Guenter Roeck <linux@...ck-us.net>, Jean Delvare <jdelvare@...e.com>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, linux-hwmon@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 Krzysztof Kozlowski <krzk@...nel.org>
Subject: Re: [PATCH 1/2] dt-bindings: hwmon: add common properties with label

On 22/02/2024 20:50, Rob Herring wrote:
> On Sat, Feb 17, 2024 at 09:21:46AM +0100, Krzysztof Kozlowski wrote:
>> On 16/02/2024 18:11, Guenter Roeck wrote:
>>> On 2/15/24 23:55, Krzysztof Kozlowski wrote:
>>>> Linux hwmon core code parses "label" property for each device, so add a
>>>> common schema for that.
>>>>
>>>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>>>
>>>  From hwmon perspective:
>>>
>>> Acked-by: Guenter Roeck <linux@...ck-us.net>
>>>
>>>> ---
>>>>   .../devicetree/bindings/hwmon/hwmon-common.yaml          | 16 ++++++++++++++++
>>>>   1 file changed, 16 insertions(+)
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/hwmon/hwmon-common.yaml b/Documentation/devicetree/bindings/hwmon/hwmon-common.yaml
>>>> new file mode 100644
>>>> index 000000000000..d83f4180f622
>>>> --- /dev/null
>>>> +++ b/Documentation/devicetree/bindings/hwmon/hwmon-common.yaml
>>>> @@ -0,0 +1,16 @@
>>>> +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
>>>> +%YAML 1.2
>>>> +---
>>>> +$id: http://devicetree.org/schemas/hwmon/hwmon-common.yaml#
>>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>>> +
>>>> +title: Hardware Monitoring Devices Common Properties
>>>> +
>>>> +maintainers:
>>>> +  - Guenter Roeck <linux@...ck-us.net>
>>>> +
>>>> +properties:
>>>> +  label:
>>>> +    description: A descriptive name for this device.
>>>> +
>>>
>>> Would it make sense to also add shunt-resistor-micro-ohms ?
>>
>> It's not present on many devices, I think, so it is also not parsed by
>> hwmon core. I plan to add above $ref to hwmon-common to each hwmon
>> binding, so this would mean all of them will get shunt-resistor. I would
>> not add it, but I also don't mind if I am overruled.
> 
> I count 11 users. That's enough for me to add it here.
> 
> I care less if a device uses a defined property it doesn't need. I'm 
> more worried about having any undefined property allowed.

Ack, I'll send a v2.

Best regards,
Krzysztof