Re: [Intel-gfx] [PATCH 2/2] drm/i915: Turn off g4x DP port in .post_disable()

2018-06-14 Thread Ville Syrjälä
On Thu, Jun 14, 2018 at 03:42:42PM +0300, Jani Nikula wrote: > On Wed, 13 Jun 2018, Ville Syrjala wrote: > > From: Ville Syrjälä > > > > While Bspec doesn't list a specific sequence for turning off the DP port > > on g4x we are getting an underrun if the port is disabled in the > > .disable() hoo

Re: [Intel-gfx] [PATCH 2/2] drm/i915: Turn off g4x DP port in .post_disable()

2018-06-14 Thread Jani Nikula
On Wed, 13 Jun 2018, Ville Syrjala wrote: > From: Ville Syrjälä > > While Bspec doesn't list a specific sequence for turning off the DP port > on g4x we are getting an underrun if the port is disabled in the > .disable() hook. Looks like the pipe stops when the port stops, and by > that time the

[Intel-gfx] [PATCH 2/2] drm/i915: Turn off g4x DP port in .post_disable()

2018-06-13 Thread Ville Syrjala
From: Ville Syrjälä While Bspec doesn't list a specific sequence for turning off the DP port on g4x we are getting an underrun if the port is disabled in the .disable() hook. Looks like the pipe stops when the port stops, and by that time the plane disable may not have completed yet. Also the pla