[PATCH 1/3] drm/panel: Add display_timing support

[Boris Brezillon]

Hi Philipp,

On Mon, 23 Feb 2015 15:04:32 +0100
Philipp Zabel <p.zabel at pengutronix.de> wrote:

> Hi Thierry,
> 
> do you have any further thoughts on this?
> 
> Am Dienstag, den 03.02.2015, 14:30 +0100 schrieb Thierry Reding:
> > On Thu, Dec 11, 2014 at 06:32:44PM +0100, Philipp Zabel wrote:
> > > Many panel data sheets additionally to typical values list allowed ranges for
> > > timings such as hsync/vsync lengths, porches, and the pixel clock rate. These
> > > can be stored in a struct display_timing, to be used by an encoder mode_fixup
> > > callback to clamp user provided timing values or to validate workarounds for
> > > clock source limitations.
> > > 
> > > This patch adds a new drm_panel_funcs callback that returns the panels'
> > > available display_timing entries.

Anthony recently noticed that the edt_etm0700g0dh6 panel he's
connecting on his sama5 board defines typical timings that are not
supported by Atmel's display controller.
This patch could help us deal with such cases.
Could you keep me (and Anthony) in Cc of your future versions ?

Thanks,

Boris

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