[PROTO][PATCH 05/10] drm/bridge: adv7511: Add max-clock, min-vrefresh options

[Ulrich Hecht]

> On August 21, 2018 at 10:09 AM Laurent Pinchart <laurent.pinchart at ideasonboard.com> wrote:
> 
> 
> Hi Ulrich,
> 
> On Tuesday, 21 August 2018 11:03:45 EEST Ulrich Hecht wrote:
> > On August 20, 2018 at 11:28 AM Laurent Pinchart wrote:
> > > On Tuesday, 14 August 2018 16:49:59 EEST Ulrich Hecht wrote:
> > >> From: Koji Matsuoka <koji.matsuoka.xm at renesas.com>
> > >> 
> > >> This patch adds the option to specify a maximal clock and a minimal
> > >> vertical refresh rate.
> > > 
> > > What is this needed for ?
> > 
> > Somewhere in the chain there is a component that will not tolerate clocks in
> > excess of 135 MHz; if you don't limit it, the default for a 1920x1200
> > display is somewhere along 148 MHz, and the HDMI signal output is invalid.
> 
> Do you know which component that is ?

Unfortunately not. It's not the ADV7511, though, that goes up to 225 MHz...

CU
Uli