Message-ID: <4FA946B7.2020302@wwwdotorg.org>
Date: Tue, 08 May 2012 10:15:51 -0600
From: Stephen Warren <swarren@wwwdotorg.org>
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To: Mark Brown <broonie@opensource.wolfsonmicro.com>
CC: Rhyland Klein <rklein@nvidia.com>, Samuel Ortiz <sameo@linux.intel.com>,
        Grant Likely <grant.likely@secretlab.ca>,
        Rob Herring <rob.herring@calxeda.com>, Liam Girdwood <lrg@ti.com>,
        linux-kernel@vger.kernel.org, devicetree-discuss@lists.ozlabs.org
Subject: Re: [PATCH 6/6 v3] ARM: Tegra: Add support for TPS65910 PMIC
References: <1336502563-31789-1-git-send-email-rklein@nvidia.com> <1336502563-31789-7-git-send-email-rklein@nvidia.com> <4FA94212.4000207@wwwdotorg.org> <20120508155847.GC15893@opensource.wolfsonmicro.com>
In-Reply-To: <20120508155847.GC15893@opensource.wolfsonmicro.com>
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On 05/08/2012 09:58 AM, Mark Brown wrote:
> On Tue, May 08, 2012 at 09:56:02AM -0600, Stephen Warren wrote:
>> On 05/08/2012 12:42 PM, Rhyland Klein wrote:
>>> Add support for the tps65910 pmic on cardhu.
> 
>> Lets ignore this one patch for now; it's not clear whether Cardhu
>> should instantiate the TPS65910 or TPS62360 PMU; apparently
>> different Cardhu variants have one, the other, or even both. I'm
>> trying to find out which variant(s) is/are useful to support.
> 
> IIRC it's the same as Whistler was and even more fun that that -
> you might have random PMIC boards appearing from random places and
> can't rely on what's on the system at all!  See the thread I
> started about plugin modules the other day :)

I think you're thinking of some other board. Cardhu is a tablet
reference platform without pluggable modules, and I believe the PMIC
mess is just due to some rework in later board revisions to solve some
under-power issues in the earlier variants. But I believe there is
some Tegra30 reference board equivalent to Whistler with all kinds of
pluggable modules, although I haven't touched one yet, and don't
recall its name.
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