Re: [Intel-gfx] [PATCH 3/4] drm/i915: make sure VDD is turned off during system suspend

2014-08-12 Thread Imre Deak
On Tue, 2014-08-12 at 15:34 +0300, Ville Syrjälä wrote: > On Mon, Aug 11, 2014 at 10:04:50PM +0300, Imre Deak wrote: > > Atm we may leave eDP VDD enabled during system suspend after the CRTCs > > are disabled through an HPD->DPCD read event. So disable VDD during > > suspend at a point when no HPDs

Re: [Intel-gfx] [PATCH 3/4] drm/i915: make sure VDD is turned off during system suspend

2014-08-12 Thread Ville Syrjälä
On Mon, Aug 11, 2014 at 10:04:50PM +0300, Imre Deak wrote: > Atm we may leave eDP VDD enabled during system suspend after the CRTCs > are disabled through an HPD->DPCD read event. So disable VDD during > suspend at a point when no HPDs can occur. And vdd itself holds a runtime pm ref so this probl

[Intel-gfx] [PATCH 3/4] drm/i915: make sure VDD is turned off during system suspend

2014-08-11 Thread Imre Deak
Atm we may leave eDP VDD enabled during system suspend after the CRTCs are disabled through an HPD->DPCD read event. So disable VDD during suspend at a point when no HPDs can occur. Signed-off-by: Imre Deak --- drivers/gpu/drm/i915/i915_drv.c | 15 +++ drivers/gpu/drm/i915/intel_dp.