On ti, 2015-12-01 at 09:26 -0800, Matt Roper wrote: > BXT power well support is not yet stable. Starting with patch > > commit 9f836f9016ad5320e0c9230419d2102cf15a28aa > Author: Patrik Jakobsson <patrik.jakobsson@xxxxxxxxxxxxxxx> > Date: Mon Nov 16 16:20:01 2015 +0100 > > drm/i915/gen9: Turn DC handling into a power well > > DPMS off operations may actually cause the entire system to powerdown or > reboot. Disable power well support for now until Broxton gets fixes > similar to what we have for SKL. > > Cc: Imre Deak <imre.deak@xxxxxxxxx> > Cc: Patrik Jakobsson <patrik.jakobsson@xxxxxxxxxxxxxxx> > References: http://lists.freedesktop.org/archives/intel-gfx/2015-November/081037.html > Signed-off-by: Matt Roper <matthew.d.roper@xxxxxxxxx> Reviewed-by: Imre Deak <imre.deak@xxxxxxxxx> > --- > drivers/gpu/drm/i915/intel_runtime_pm.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c > b/drivers/gpu/drm/i915/intel_runtime_pm.c > index 469927e..2c2151f 100644 > --- a/drivers/gpu/drm/i915/intel_runtime_pm.c > +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c > @@ -1911,6 +1911,11 @@ sanitize_disable_power_well_option(const > struct drm_i915_private *dev_priv, > if (disable_power_well >= 0) > return !!disable_power_well; > > + if (IS_BROXTON(dev_priv)) { > + DRM_DEBUG_KMS("Disabling display power well > support\n"); > + return 0; > + } > + > return 1; > } > _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
