[Intel-gfx] [PATCH 8/8] drm/i915: move dp clock computations to encoder->compute_config

[Daniel Vetter]

On Tue, Apr 2, 2013 at 11:20 PM, Jesse Barnes <jbarnes at virtuousgeek.org>wrote:

> On Thu, 28 Mar 2013 10:42:03 +0100
> Daniel Vetter <daniel.vetter at ffwll.ch> wrote:
>
> > With the exception of hsw, which has dedicated DP clocks which run at
> > the fixed frequency already, and vlv, which doesn't have optmized
> > pre-defined dp clock parameters (yet).
> >
>
> Nice.  I think we should do this for common HDMI modes too.  We have
> some extra clock manipulation regs we can use to tune things, so having
> fixed dividers for 720p and 1080p along with the tuning params should
> give us better behavior than what we have today.


Imo we still have a few lower-hanging fruit before we need to start doing
clock fine-tuning in hdmi-land: Atm we don't really bother with supporting
the 1001/1000 modified clocks in the CEA spec at all ... Once we have the
support code for that, adding fine-tuned clocks for those modes starts to
make sense, so that we really hit them spot-on.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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