linux-kernel - Re: [PATCH] drm/panel: update innolux n116bge timings

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Message-ID: <20141107121322.GA11084@ulmo.nvidia.com>
Date:	Fri, 7 Nov 2014 13:13:25 +0100
From:	Thierry Reding <thierry.reding@...il.com>
To:	Daniel Kurtz <djkurtz@...omium.org>
Cc:	dri-devel <dri-devel@...ts.freedesktop.org>,
	David Airlie <airlied@...ux.ie>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Stéphane Marchesin <marcheu@...omium.org>
Subject: Re: [PATCH] drm/panel: update innolux n116bge timings

On Mon, Sep 22, 2014 at 06:12:41PM +0800, Daniel Kurtz wrote:
> On Mon, Sep 22, 2014 at 4:39 PM, Thierry Reding
> <thierry.reding@...il.com> wrote:
> >
> > On Tue, Sep 02, 2014 at 10:56:46AM +0800, Daniel Kurtz wrote:
> > > There are several different models of N116BGE.  According to the commit
> > > that added innolux_n116bge_mode [0], this N116BGE is for the eDP variety.
> > >
> > > [0] commit 0a2288c06aab73c966e82045c8f20b0e713baf2a
> > >  Author: Thierry Reding <treding@...dia.com>
> > >  Date:   Thu Jul 3 14:02:59 2014 +0200
> > >
> > >    drm/panel: simple: Add Innolux N116BGE panel support
> > >
> > > The clock and htotal values from add by that patch are out of spec according to
> > > the datasheets I have seen for the eDP N116BGE (-EA2 and -EB2).
> >
> > Does out of spec imply that these timings aren't working for you?
> 
> No, I didn't even try with your values, actually.
> Out of spec just means that the numbers do not fall between Min and
> Max on the datasheet:
> 
> 72.6 <= DCLK <= 80.24 vs. 71
> 1506 <= htotal <= 1716 vs. 1500
> 
> > > This patch changes the values to the "Typ" values on the datasheet.
> >
> > The original patch was based on -E42 of the datasheet. But I can run
> > some tests to see if the timings in this patch work on the panel that I
> > have. If so I guess the easiest would be to apply this.
> 
> Thanks!

Took me a while longer to test this than I had expected. Turns out the
Tegra132 Norrin board that I have works with the timings you provide in
this patch too, so I'm going to apply this patch.

Thierry

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