linux-kernel - Re: [PATCH 5/5] drm/sun4i: Add support for the overscan profiles

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Message-ID: <20161121073047.zv5cfjd3ti4hh4gl@lukather>
Date:   Mon, 21 Nov 2016 08:30:47 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Daniel Vetter <daniel.vetter@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        Hans de Goede <hdegoede@...hat.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 5/5] drm/sun4i: Add support for the overscan profiles

On Fri, Nov 11, 2016 at 10:17:55AM +0100, Daniel Vetter wrote:
> On Thu, Nov 10, 2016 at 03:56:30PM +0100, Maxime Ripard wrote:
> > Hi Daniel,
> > 
> > On Tue, Nov 08, 2016 at 09:59:27AM +0100, Daniel Vetter wrote:
> > > On Tue, Oct 18, 2016 at 10:29:38AM +0200, Maxime Ripard wrote:
> > > > Create overscan profiles reducing the displayed zone.
> > > > 
> > > > For each TV standard (PAL and NTSC so far), we create 4 more reduced modes
> > > > by steps of 5% that the user will be able to select.
> > > > 
> > > > Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> > > 
> > > tbh I think if we agree to do this (and that still seems an open question)
> > > I think there should be a generic helper to add these overscan modes with
> > > increased porches. Anything that only depends upon the sink (and
> > > overscanning is something the sink does) should imo be put into a suitable
> > > helper library for everyone to share.
> > > 
> > > Or maybe even stash it into the probe helpers and call it for all TV
> > > connectors. Definitely not a driver-private thing.
> > 
> > Last time we discussed it, my recollection was that you didn't want to
> > have generic code for it, but I'd be happy to implement it.
> > 
> > I'll come up with something like that.
> 
> Well I can flip-flop around with the nonsense I'm sometimes emitting ;-)
> Since you called me out, feel free to do whatever you want ...

I also found the generic solution to be a much better solution, so
I'll definitely implement it :)

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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