drm/i915: Initialize DRRS delayed work

		I915_WRITE(reg, val);

		I915_WRITE(reg, val);

	}

	}

	dev_priv->drrs.refresh_rate_type = index;

	DRM_DEBUG_KMS("eDP Refresh Rate set to : %dHz\n", refresh_rate);

}

static void intel_edp_drrs_downclock_work(struct work_struct *work)

{

	struct drm_i915_private *dev_priv =

		container_of(work, typeof(*dev_priv), drrs.work.work);

	struct intel_dp *intel_dp;

	mutex_lock(&dev_priv->drrs.mutex);

	intel_dp = dev_priv->drrs.dp;

	if (!intel_dp)

		goto unlock;

	/*

	/*

	 * mutex taken to ensure that there is no race between differnt

	 * The delayed work can race with an invalidate hence we need to

	 * drrs calls trying to update refresh rate. This scenario may occur

	 * recheck.

	 * in future when idleness detection based DRRS in kernel and

	 * possible calls from user space to set differnt RR are made.

	 */

	 */

	mutex_lock(&dev_priv->drrs.mutex);

	if (dev_priv->drrs.busy_frontbuffer_bits)

		goto unlock;

	dev_priv->drrs.refresh_rate_type = index;

	if (dev_priv->drrs.refresh_rate_type != DRRS_LOW_RR)

		intel_dp_set_drrs_state(dev_priv->dev,

			intel_dp->attached_connector->panel.

			downclock_mode->vrefresh);

	mutex_unlock(&dev_priv->drrs.mutex);

unlock:

	DRM_DEBUG_KMS("eDP Refresh Rate set to : %dHz\n", refresh_rate);

	mutex_unlock(&dev_priv->drrs.mutex);

}

}

static struct drm_display_mode *

static struct drm_display_mode *

		return NULL;

		return NULL;

	}

	}

	INIT_DELAYED_WORK(&dev_priv->drrs.work, intel_edp_drrs_downclock_work);

	mutex_init(&dev_priv->drrs.mutex);

	mutex_init(&dev_priv->drrs.mutex);

	dev_priv->drrs.type = dev_priv->vbt.drrs_type;

	dev_priv->drrs.type = dev_priv->vbt.drrs_type;