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Re: [PATCH 6/6] regulator: anatop: set default voltage selector for pcie

From Mark Brown <broonie@kernel.org>
Newsgroups linux.kernel
Subject Re: [PATCH 6/6] regulator: anatop: set default voltage selector for pcie
Date 2017-04-12 17:50 +0200
Message-ID <tvsGS-6f3-17@gated-at.bofh.it> (permalink)
References <tvaJX-3qG-9@gated-at.bofh.it> <tvaTE-3ut-23@gated-at.bofh.it> <tvaTE-3ut-21@gated-at.bofh.it> <tvsGS-6f3-19@gated-at.bofh.it>
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On Thu, Apr 13, 2017 at 03:41:03PM +0800, Dong Aisheng wrote:
> On Tue, Apr 11, 2017 at 09:40:03PM +0100, Mark Brown wrote:

> > Why is this the only anatop regulator which can have this problem and
> > how do we know this is a good value?

> Anatop regulator has no separate gate bit.
> e.g.
> 00000 Power gated off
> 00001 Target core voltage = 0.725V
> ...
> So it may have no valid default voltage in case it's disabled in
> bootloader.
> e.g. regulator_enable() may not work.

That doesn't answer my question.  What I'm asking is why another anatop
regulator might not end up disabled like this one.

> The default voltage 1.100v this patch sets is defined in reference
> manual.

For the SoC you're currently looking at...  might another have a
different value?

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Thread

Re: [PATCH 6/6] regulator: anatop: set default voltage selector for  pcie Mark Brown <broonie@kernel.org> - 2017-04-11 22:50 +0200
  Re: [PATCH 6/6] regulator: anatop: set default voltage selector for  pcie Mark Brown <broonie@kernel.org> - 2017-04-12 17:50 +0200
    Re: [PATCH 6/6] regulator: anatop: set default voltage selector for pcie Dong Aisheng <dongas86@gmail.com> - 2017-04-12 18:20 +0200
  Re: [PATCH 6/6] regulator: anatop: set default voltage selector for  pcie Dong Aisheng <dongas86@gmail.com> - 2017-04-12 17:50 +0200
    Re: [PATCH 6/6] regulator: anatop: set default voltage selector for  pcie Lucas Stach <l.stach@pengutronix.de> - 2017-04-12 18:20 +0200
      Re: [PATCH 6/6] regulator: anatop: set default voltage selector for  pcie Mark Brown <broonie@kernel.org> - 2017-04-12 18:20 +0200

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