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SubjectRe: [PATCH 1/2] dt-bindings: power: Add regulator-pd yaml file
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On 18/08/2023 23:06, Shenwei Wang wrote:
>
>
>> -----Original Message-----
>> From: Rob Herring <robh+dt@kernel.org>
>> Sent: Friday, August 18, 2023 3:52 PM
>> To: Shenwei Wang <shenwei.wang@nxp.com>
>> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>; Conor Dooley
>> <conor+dt@kernel.org>; Ulf Hansson <ulf.hansson@linaro.org>; Liam Girdwood
>> <lgirdwood@gmail.com>; Mark Brown <broonie@kernel.org>;
>> imx@lists.linux.dev; devicetree@vger.kernel.org; linux-kernel@vger.kernel.org;
>> dl-linux-imx <linux-imx@nxp.com>
>> Subject: [EXT] Re: [PATCH 1/2] dt-bindings: power: Add regulator-pd yaml file
>>>
>>> Documenting the regulator power domain properties and usage examples.
>>
>> This needs to answer why we need this.
>>
>> It looks like just an abstraction layer to make regulators look like a power
>> domain.
>>
>
> Yes, it is a wrapper that allows using regulators as a power domain. This removes
> the need to add regulator operating code in each consumer device driver. As a power
> domain, the regulator will be managed automatically by the device driver framework
> and PM subsystem.
>
> This is very useful when a device's power is controlled by a GPIO pin, which currently
> requires using the fixed-regulator to achieve the same purpose. However, the
> fixed-regulator approach may have to add code in the driver in order to use it.

Why do you start discussion from zero ignoring all previous history of
this patchset?

https://lore.kernel.org/all/20220609150851.23084-1-max.oss.09@gmail.com/

Best regards,
Krzysztof

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