Re: [Intel-gfx] [PATCH 08/10] drm/i915: Centralize the SKL DDI A/E vs. B/C/D buf trans handling

2017-10-18 Thread James Ausmus
On Mon, Oct 16, 2017 at 05:57:03PM +0300, Ville Syrjala wrote: > From: Ville Syrjälä > > SKL DDI B/C/D only have 9 usable buf trans registers for DP/eDP. That > matches the normal DP buf trans tables, but the low vswing eDP tables > have 10 entries. Thus the eDP

[Intel-gfx] [PATCH 08/10] drm/i915: Centralize the SKL DDI A/E vs. B/C/D buf trans handling

2017-10-16 Thread Ville Syrjala
From: Ville Syrjälä SKL DDI B/C/D only have 9 usable buf trans registers for DP/eDP. That matches the normal DP buf trans tables, but the low vswing eDP tables have 10 entries. Thus the eDP tables can only be used safely with DDI A and E. We try to catch cases