On Mon, Apr 30, 2012 at 21:20, Jesse Barnes <jbar...@virtuousgeek.org>wrote:
> Ahh these are vswing and preemphasis values for the various types... > > Doesn't look like this goes up to the 19 dwords the docs specify? > The last pair is for HDMI, it is ignored for FDI/DP, so I write it along with all others to already prepare DDI to work in any mode. > Usually, double buffered means we need to write a trigger reg somewhere > for the values to be latched in, or wait for vblank. What's different > here? > I'll double-check, it could be possible that they don't need to be double-buffered. In the first series I split the double-buffering part (with a delay) into a separate patch as it made things work more reliable on my machine, but it got merged when I moved everything to intel_ddi.c. FDI is not yet stable enough, so I need to find if the issues I was having with it are due to that, or we really need the double-writing. -- Eugeni Dodonov <http://eugeni.dodonov.net/>
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