Re: [PATCH] dt-bindings: display: panel: ilitek,ili7807s: Allow backlight property

[Krzysztof Kozlowski]

On 27/10/2026 19:18, Vishnu Saini wrote:
>>>>> Declare 'backlight: true' so the property is explicitly allowed by the
>>>>> schema.
>>>>
>>>> Why do you need to explicitly allow it? Since when?
>>>>
>>>> I see no benefit of this patch and commit msg does not explain me what
>>>> that benefit would be.
>>> It is required for below DLC panel, when enabling backlight using gpio-backlight driver,
>>
>> How is it required? You did not really answer, so again:
>>
>> Why do you need to explicitly allow it?
>>
>> Answer starts "because ... " and you provide technical arguments, not
>> wishes.
> Because the DLC panel node references an external gpio-backlight device through the
> backlight property, but the current DLC binding does not allow this property.
> As a result, adding the backlight phandle to the panel node causes a dtbs_check validation error.

Thanks, but that's confusing or we looked at different source code,
because to my eyes it clearly lists backlight already. Can you show me
how can I reproduce the dtbs_check error?


Best regards,
Krzysztof