1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 8af286c63d3b..8315499452dc 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -705,7 +705,8 @@ static void gen9_dc_off_power_well_enable(struct drm_i915_private *dev_priv,
         gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
 
         dev_priv->display.get_cdclk(dev_priv, &cdclk_state);
-        WARN_ON(!intel_cdclk_state_compare(&dev_priv->cdclk.hw, &cdclk_state));
+        /* Can't read out voltage_level so can't use intel_cdclk_changed() */
+        WARN_ON(intel_cdclk_needs_modeset(&dev_priv->cdclk.hw, &cdclk_state));
 
         gen9_assert_dbuf_enabled(dev_priv);