From 5e17ee74b541b56b5d4cfab6502a5116f224e32c Mon Sep 17 00:00:00 2001
From: Zhenyu Wang <zhenyuw@linux.intel.com>
Date: Thu, 3 Sep 2009 09:30:06 +0800
Subject: [PATCH] drm/i915: do dynamic clock freq control only in kernel
 modesetting

Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_display.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index d7c7fa489872..9aa1d2de8a84 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3472,6 +3472,9 @@ void intel_mark_busy(struct drm_device *dev, struct drm_gem_object *obj)
 	struct intel_framebuffer *intel_fb;
 	struct intel_crtc *intel_crtc;
 
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return;
+
 	dev_priv->busy = true;
 	intel_increase_renderclock(dev, true);
 
-- 
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