From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Subject: Re: OMAP4 DSS clock setup
Date: Fri, 08 Apr 2011 19:35:31 +0300
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To: "Cousson, Benoit" <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>, "Semwal, Sumit" <sumit.semwal@ti.com>, "Taneja, Archit" <archit@ti.com>, linux-omap <linux-omap@vger.kernel.org>

On Fri, 2011-04-08 at 17:36 +0200, Cousson, Benoit wrote:
> Hi Tomi,
> 
> On 4/8/2011 7:51 AM, Valkeinen, Tomi wrote:

> > - If the modules are handled separately, how should the dependencies be
> > handled? For example, dss_core's reset will reset all the other modules
> > also, and most of the submodules need functions from dss_core and
> > dss_dispc. So should, say, dss_dsi then call functions in core and dispc
> > to "get" them, i.e. increase their pm runtime use count?
> 
> Are you sure about that? 
> The dss_core does not have any reset in the sysonfig (only a status), but the dispc does have one and the dsi as well.

Ah, I might be speaking only of OMAP2/3. I remember somebody saying that
the DSS reset bit on OMAP4 is marked as reserved. But for OMAP3 (and I
think for OMAP2 also) the DSS_SYSCONFIG reset bit will reset also the
rest of the DSS.

 Tomi