Signed-off-by: Ben Widawsky <ben at bwidawsk.net> --- drivers/gpu/drm/i915/i915_irq.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index d882d41..4ac4522 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1833,6 +1833,11 @@ static void ivybridge_irq_preinstall(struct drm_device *dev) I915_WRITE(SDEIMR, 0xffffffff); I915_WRITE(SDEIER, 0x0); POSTING_READ(SDEIER); + + /* Power management */ + I915_WRITE(GEN6_PMIMR, 0xffffffff); + I915_WRITE(GEN6_PMIER, 0x0); + POSTING_READ(GEN6_PMIER); } static void valleyview_irq_preinstall(struct drm_device *dev) -- 1.8.0
