linux-kernel - Re: [PATCH v2 1/3] dt-bindings: hwmon: jedec,spd5118: Add bindings

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Message-ID: <f53deeb2-bc08-4363-b8d0-ff3987409ca7@roeck-us.net>
Date: Fri, 31 May 2024 06:09:16 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Krzysztof Kozlowski <krzk@...nel.org>, linux-hwmon@...r.kernel.org
Cc: devicetree@...r.kernel.org, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, linux-kernel@...r.kernel.org,
 Armin Wolf <W_Armin@....de>, Thomas Weißschuh
 <linux@...ssschuh.net>, René Rebe <rene@...ctcode.de>
Subject: Re: [PATCH v2 1/3] dt-bindings: hwmon: jedec,spd5118: Add bindings

On 5/31/24 01:15, Krzysztof Kozlowski wrote:
> On 31/05/2024 00:39, Guenter Roeck wrote:
>> Add device tree bindings for the SPD hub present in DDR5 modules.
>>
>> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
> 
> ...
> 
>> +title: JEDEC JESD300-5B (SPD5118) compatible DDR5 SPD hub
>> +
>> +maintainers:
>> +  - Guenter Roeck <linux@...ck-us.net>
>> +
>> +description: |
>> +  JEDEC JESD300-5B.01 SPD5118 Hub and Serial Presence Detect
>> +  https://www.jedec.org/standards-documents/docs/jesd300-5b01
>> +
>> +select:
>> +  properties:
>> +    compatible:
>> +      const: jedec,spd5118
> 
> Why do you need the select? This s needed for cases with multiple
> bindings using parts of compatible list. I don't see the case here so far.
> 

Sorry, I am not a devicetree expert, I don't really know what I am doing,
and just copied this from some other binding. I'll try to find a better
example. Actually, I'll just add the binding to trivial devices.

Thanks,
Guenter