1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 56edb0975db6..7584348b7e89 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1479,7 +1479,14 @@ static bool intel_dp_get_hw_state(struct intel_encoder *encoder,
         enum port port = dp_to_dig_port(intel_dp)->port;
         struct drm_device *dev = encoder->base.dev;
         struct drm_i915_private *dev_priv = dev->dev_private;
-        u32 tmp = I915_READ(intel_dp->output_reg);
+        enum intel_display_power_domain power_domain;
+        u32 tmp;
+
+        power_domain = intel_display_port_power_domain(encoder);
+        if (!intel_display_power_enabled(dev_priv, power_domain))
+                return false;
+
+        tmp = I915_READ(intel_dp->output_reg);
 
         if (!(tmp & DP_PORT_EN))
                 return false;