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path: root/drivers/gpu/drm/i915/intel_pm.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
-rw-r--r--drivers/gpu/drm/i915/intel_pm.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ab98dac3da73..b124ba4ca7e5 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5514,6 +5514,10 @@ static void i85x_init_clock_gating(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
I915_WRITE(RENCLK_GATE_D1, SV_CLOCK_GATE_DISABLE);
+
+ /* interrupts should cause a wake up from C3 */
+ I915_WRITE(MI_STATE, _MASKED_BIT_ENABLE(MI_AGPBUSY_INT_EN) |
+ _MASKED_BIT_DISABLE(MI_AGPBUSY_830_MODE));
}
static void i830_init_clock_gating(struct drm_device *dev)