[PATCH v4 4/4] drm/i915: Enable polling when we don't have hpd

2016-06-21 Thread Daniel Vetter
On Tue, Jun 21, 2016 at 02:18:35PM -0400, Lyude wrote: > Unfortunately, there's two situations where we lose hpd right now: > - Runtime suspend > - When we've shut off all of the power wells on Valleyview/Cherryview > > While it would be nice if this didn't cause issues, this has the > ability to

[PATCH v4 4/4] drm/i915: Enable polling when we don't have hpd

2016-06-21 Thread Lyude
Unfortunately, there's two situations where we lose hpd right now: - Runtime suspend - When we've shut off all of the power wells on Valleyview/Cherryview While it would be nice if this didn't cause issues, this has the ability to get us in some awkward states where a user won't be able to get the