Messages in this thread | | | Date | Sat, 19 Aug 2023 10:04:05 +0200 | Subject | Re: [PATCH 1/2] dt-bindings: power: Add regulator-pd yaml file | From | Krzysztof Kozlowski <> |
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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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