From mboxrd@z Thu Jan  1 00:00:00 1970
From: dongas86@gmail.com (Dong Aisheng)
Date: Thu, 13 Apr 2017 15:41:03 +0800
Subject: [PATCH 6/6] regulator: anatop: set default voltage selector for
 pcie
In-Reply-To: <20170411204003.avoe5a6o52kx5on2@sirena.org.uk>
References: <1491962327-12477-1-git-send-email-aisheng.dong@nxp.com>
 <1491962327-12477-6-git-send-email-aisheng.dong@nxp.com>
 <20170411204003.avoe5a6o52kx5on2@sirena.org.uk>
Message-ID: <20170413074103.GC23163@b29396-OptiPlex-7040>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Tue, Apr 11, 2017 at 09:40:03PM +0100, Mark Brown wrote:
> On Wed, Apr 12, 2017 at 09:58:47AM +0800, Dong Aisheng wrote:
> > Set the initial voltage selector for vddpcie in case it's disabled
> > by default.
> 
> 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.

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

Regards
Dong Aisheng