linux-kernel - Re: [PATCH 0/3] omapdss: venc: Add support for bypass and acbias.

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Date:	Mon, 11 Nov 2013 08:54:04 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	"Dr. H. Nikolaus Schaller" <hns@...delico.com>
Cc:	Tomi Valkeinen <tomi.valkeinen@...com>,
	Belisko Marek <marek.belisko@...il.com>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, linux-fbdev@...r.kernel.org,
	NeilBrown <neilb@...e.de>, Marek Belisko <marek@...delico.com>
Subject: Re: [PATCH 0/3] omapdss: venc: Add support for bypass and acbias.

* Dr. H. Nikolaus Schaller <hns@...delico.com> [131111 06:30]:
> Am 11.11.2013 um 15:13 schrieb Tomi Valkeinen:
> > On 2013-11-11 15:57, Dr. H. Nikolaus Schaller wrote:
> >
> > The display.c file is not strictly DSS stuff, but DSS related "glue" for
> > the SoC. For example, the muxing of the DSI pads is also done on the
> > CONTROL module, and it's also in display.c.
> > 
> > The file is getting a bit large, so I'm not against splitting it. But I
> > don't think there's point to add omap3-tvout.c file, which most likely
> > will ever contain only that one function.
> 
> Yes that is very likely true.
> 
> The problem is that there is no other official API to modify the DEFCONF1
> register. Therefore we introduced this (propsal).
> 
> Our first idea was a readDEFCONF1() and writeDEFCONF1() and use the
> constants (bit patterns) you suggested below.

I posted something about accessing the ctrl module regs to the first
patch in the series. It's best to set it up as a separate driver for
now and then maybe handle it with pinctrl-single,bits when DSS is
device tree enabled.

Regards,

Tony
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