On Mon, Apr 30, 2012 at 21:20, Jesse Barnes <jbarnes at 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/> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20120430/9e0e5df1/attachment.html>
