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Date:   Wed, 25 Jan 2017 13:55:21 +0100
From:   "Rafael J. Wysocki" <>
To:     Mark Brown <>
Cc:     Furquan Shaikh <>,
        "Rafael J . Wysocki" <>,
        Liam Girdwood <>,
        Tony Lindgren <>,
        Dmitry Torokhov <>,
        Len Brown <>,
        Greg Kroah-Hartman <>,
        Lorenzo Pieralisi <>,
        Hanjun Guo <>,
        Will Deacon <>,
        Rob Herring <>,
        Sathyanarayana Nujella <>,
        Heikki Krogerus <>,
        Adam Thomson <>,
        Linus Walleij <>,
        Alexandre Courbot <>,,
        ACPI Devel Maling List <>,
        Linux Kernel Mailing List <>,
        Linux OMAP Mailing List <>,
        Mark Rutland <>
Subject: Re: [PATCH 0/7] Implement generic regulator constraints parsing for
 ACPI and OF

On Wed, Jan 25, 2017 at 1:49 PM, Mark Brown <> wrote:
> On Tue, Jan 24, 2017 at 04:06:34PM -0800, Furquan Shaikh wrote:
>> Since regulator properties remain the same across OF and ACPI
>> regulators, this series of patches provides common routine for
>> obtaining regulation constraints from device tree and ACPI nodes. In
> As Lorenzo explained this is really not a good idea, ACPI has a power
> management model which is just being ignored here.  If you're producing
> systems using ACPI you really need to use ACPI in a joined up fashion
> rather than just blindly importing all DT bindings into ACPI.  While
> there are many areas where ACPI just doesn't do anything and as a result
> it does make sense to reuse existing DT bindings there are also plenty
> of areas where work has been done on the ACPI side.  Regulators and
> power management are definitely one of those areas.

This is exactly right. :-)


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