Re: [Intel-gfx] [PATCH v3] drm/i915: Disable fast link training if DP config changes

2015-12-16 Thread Ville Syrjälä
On Wed, Dec 16, 2015 at 02:49:51PM +0100, Daniel Vetter wrote: > On Wed, Dec 16, 2015 at 03:04:47PM +0200, Mika Kahola wrote: > > On Wed, 2015-12-16 at 14:41 +0200, Ville Syrjälä wrote: > > > On Wed, Dec 16, 2015 at 02:26:58PM +0200, Mika Kahola wrote: > > > > Disable DP fast link training if DP li

Re: [Intel-gfx] [PATCH v3] drm/i915: Disable fast link training if DP config changes

2015-12-16 Thread Daniel Vetter
On Wed, Dec 16, 2015 at 03:04:47PM +0200, Mika Kahola wrote: > On Wed, 2015-12-16 at 14:41 +0200, Ville Syrjälä wrote: > > On Wed, Dec 16, 2015 at 02:26:58PM +0200, Mika Kahola wrote: > > > Disable DP fast link training if DP link configuration > > > changes. If one of the DP link parameters i.e. l

Re: [Intel-gfx] [PATCH v3] drm/i915: Disable fast link training if DP config changes

2015-12-16 Thread Mika Kahola
On Wed, 2015-12-16 at 14:41 +0200, Ville Syrjälä wrote: > On Wed, Dec 16, 2015 at 02:26:58PM +0200, Mika Kahola wrote: > > Disable DP fast link training if DP link configuration > > changes. If one of the DP link parameters i.e. link > > bandwidth, lane count, rate selection, port clock or bpp > >

Re: [Intel-gfx] [PATCH v3] drm/i915: Disable fast link training if DP config changes

2015-12-16 Thread Ville Syrjälä
On Wed, Dec 16, 2015 at 02:26:58PM +0200, Mika Kahola wrote: > Disable DP fast link training if DP link configuration > changes. If one of the DP link parameters i.e. link > bandwidth, lane count, rate selection, port clock or bpp > changes the link training does no longer apply the > previously co

[Intel-gfx] [PATCH v3] drm/i915: Disable fast link training if DP config changes

2015-12-16 Thread Mika Kahola
Disable DP fast link training if DP link configuration changes. If one of the DP link parameters i.e. link bandwidth, lane count, rate selection, port clock or bpp changes the link training does no longer apply the previously computed voltage swing and pre-emphasis values. Instead, the link trainin