Re: [Intel-gfx] [PATCH v5 1/3] drm/i915: Disable fast link training if DP config changes

2016-01-05 Thread Mika Kahola
On Mon, 2016-01-04 at 18:42 +0200, Ville Syrjälä wrote: > On Mon, Jan 04, 2016 at 01:21:22PM +0200, Mika Kahola wrote: > > Disable DP link training optimization if DP link configuration > > changes. If one of the DP link parameters i.e. link rate or > > lane count changes the link training does no

[Intel-gfx] [PATCH v5 1/3] drm/i915: Disable fast link training if DP config changes

2016-01-04 Thread Mika Kahola
Disable DP link training optimization if DP link configuration changes. If one of the DP link parameters i.e. link rate or lane count changes the link training does no longer apply the previously computed drive current and pre-emphasis level. Instead, the link training is started with zero values.

Re: [Intel-gfx] [PATCH v5 1/3] drm/i915: Disable fast link training if DP config changes

2016-01-04 Thread Ville Syrjälä
On Mon, Jan 04, 2016 at 01:21:22PM +0200, Mika Kahola wrote: > Disable DP link training optimization if DP link configuration > changes. If one of the DP link parameters i.e. link rate or > lane count changes the link training does no longer apply the > previously computed drive current and