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Groups > linux.kernel > #1444282

Re: "coupled" regulator support

From Mark Brown <broonie@kernel.org>
Newsgroups linux.kernel
Subject Re: "coupled" regulator support
Date 2016-07-15 15:00 +0200
Message-ID <rVaSL-70X-31@gated-at.bofh.it> (permalink)
References <rVa6l-6K7-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Jul 15, 2016 at 08:01:13PM +0800, Jisheng Zhang wrote:

> regR can only be set to v1 if devA and devB all call for set voltage to v1
> regR can set to v2 if devA or devB call for set voltage to v2

> To support this situation, I'd like to add flag to regulator structure and
> patch regulator_check_consumers() to check whether we are safe to set the vol

Surely this is just what normal set voltage calls do?  If devA says
set_voltage(v1, v2) but devB still has set_voltage(v2, v2) then we will
leave the voltage at v2, we'll only allow it to be set to v1 if both
consumers agree that this is a valid voltage.  It feels like there's
something else going on here that I'm missing?

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Thread

"coupled" regulator support Jisheng Zhang <jszhang@marvell.com> - 2016-07-15 14:10 +0200
  Re: "coupled" regulator support Mark Brown <broonie@kernel.org> - 2016-07-15 15:00 +0200
    Re: "coupled" regulator support Jisheng Zhang <jszhang@marvell.com> - 2016-07-18 08:50 +0200
      Re: "coupled" regulator support Mark Brown <broonie@kernel.org> - 2016-07-18 20:10 +0200
        Re: "coupled" regulator support Jisheng Zhang <jszhang@marvell.com> - 2016-07-21 13:00 +0200

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