linux-kernel - Re: [PATCH 2/6] dt-bindings: HID: i2c-hid: elan: add Elan eKTH5015M

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Date: Wed, 24 Apr 2024 10:32:40 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Johan Hovold <johan@...nel.org>
Cc: Johan Hovold <johan+linaro@...nel.org>, Jiri Kosina <jikos@...nel.org>,
 Benjamin Tissoires <benjamin.tissoires@...hat.com>,
 Dmitry Torokhov <dmitry.torokhov@...il.com>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>,
 Linus Walleij <linus.walleij@...aro.org>,
 Douglas Anderson <dianders@...omium.org>, linux-input@...r.kernel.org,
 devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] dt-bindings: HID: i2c-hid: elan: add Elan eKTH5015M

On 24/04/2024 09:03, Johan Hovold wrote:
> On Tue, Apr 23, 2024 at 06:24:39PM +0200, Krzysztof Kozlowski wrote:
>> On 23/04/2024 15:46, Johan Hovold wrote:
>  
>>>  properties:
>>>    compatible:
>>> -    items:
>>> -      - const: elan,ekth6915
>>> +    oneOf:
>>> +      - items:
>>> +          - enum:
>>> +              - elan,ekth5015m
>>> +          - const: elan,ekth6915
>>> +      - items:
>>
>> Don't re-add the items for this entry. Just const.
> 
> Sure. But note that the example schema uses 'items' like this (e.g. for
> 'compatible' and 'clock-names'):
> 
> 	https://docs.kernel.org/devicetree/bindings/writing-schema.html#annotated-example-schema
> 

Yes, that's the inconsistency we keep. The point is that clocks usually
have just one list, so one "items:". For compatible there can be many
and it leads to less readable code, e.g.:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml?h=v6.9-rc5#n15


Best regards,
Krzysztof