Re: [PATCH 15/33] drm/panel-simple: Fix dotclock for EDT ET035012DM6

Ville Syrjälä
2020-03-09T13:18:49Z

On Fri, Mar 06, 2020 at 09:02:57AM +0100, Marco Felsch wrote:
> On 20-03-03 16:52, Ville Syrjälä wrote:
> > On Tue, Mar 03, 2020 at 08:33:20AM +0100, Marco Felsch wrote:
> > > Hi Ville,
> > >
> > > On 20-03-02 22:34, Ville Syrjala wrote:
> > > > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> > > >
> > > > The currently listed dotclock disagrees with the currently
> > > > listed vrefresh rate. Change the dotclock to match the vrefresh.
> > > >
> > > > Someone tell me which (if either) of the dotclock or vreresh is
> > > > correct?
> > >
> > > Pls, check the datasheet which is linked within the comment. We hit the
> > > vrefresh exactly if we are in SYNC MODE.
> >
> > It's too much work to start hunting datasheets for all these
> > and figuring out what's going on in each case. Pls just
> > inform me which way is correct if you know the details.
>
> How do you know that the clock is wrong if it is to much work? As I said
> the clock is completely fine.

htotal*vtotal*vrefresh != clock, so one or both are incorrect.

--
Ville Syrjälä
Intel