Re: [PATCH v2 1/3] dt-bindings: display: panel: Add Samsung S6E8FCO

[Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>]

On 2/26/26 7:55 AM, Krzysztof Kozlowski wrote:
> On 25/02/2026 21:03, Yedaya Katsman wrote:
>> On Wed, 25 Feb 2026 at 17:45, Krzysztof Kozlowski <krzk@kernel.org> wrote:
>>>
>>> On 25/02/2026 16:29, Yedaya Katsman wrote:
>>>>>> +  vddio-supply: true
>>>>>> +  ldo-supply: true
>>>>>
>>>>> LDO is the name of the type of regulator. Why is it called as name of
>>>>> the supply?
>>>> Can you explain more what you mean? Do you mean to change the name of
>>>> the property? It seems that all the regulator properties are named
>>>> foo-supply.
>>>
>>> I just have doubts that the device has supplied called LDO, considering
>>> what LDO means.
>> OK. I don't really have a way to verify if it's true, all I have is
>> the downstream dts
>> which calls it LDO [0]
>>
>> [0] https://github.com/MiCode/Xiaomi_Kernel_OpenSource/blob/d3766fc8cda2d96de2850faa9ce58e5a37ea9f9c/arch/arm64/boot/dts/qcom/trinket-sde-display.dtsi#L24-L36
> 
> Obviously the regulator is LDO, so they called it. Most of the
> regulators are LDO, so why VDD IN is not called LDO?
> 
> This is name of the supply in this device.

Yedaya, in case you didn't catch it, LDO is an acronym:

https://en.wikipedia.org/wiki/Low-dropout_regulator

The vendor driver probably calls it that, because the input leg of
the panel's driver IC just so happens to be connected to a regulator
of this kind

If we don't know the actual name of that input and have no way to verify
it, I think 'power-supply' would be a good generic consensus, it happens
to be reasonably common across other bindings

Konrad