diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 53b5560..8681ce2 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -90,6 +90,7 @@ extern int radeon_connector_table;
 extern int radeon_tv;
 extern int radeon_new_pll;
 extern int radeon_audio;
+extern int radeon_enable_ss;
 
 /*
  * Copy from radeon_drv.h so we don't have to include both and have conflicting
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 41dd8eb..caff9f8 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1002,6 +1002,9 @@ static struct radeon_atom_ss *radeon_atombios_get_ss_info(struct
 	struct radeon_atom_ss *ss = NULL;
 	int i;
 
+	if (!radeon_enable_ss)
+		return NULL;
+
 	if (id > ATOM_MAX_SS_ENTRY)
 		return NULL;
 
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 8ba3de7..40342eb 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -88,6 +88,7 @@ int radeon_connector_table = 0;
 int radeon_tv = 1;
 int radeon_new_pll = 1;
 int radeon_audio = 1;
+int radeon_enable_ss = 1;
 
 MODULE_PARM_DESC(no_wb, "Disable AGP writeback for scratch registers");
 module_param_named(no_wb, radeon_no_wb, int, 0444);
@@ -128,6 +129,9 @@ module_param_named(new_pll, radeon_new_pll, int, 0444);
 MODULE_PARM_DESC(audio, "Audio enable (0 = disable)");
 module_param_named(audio, radeon_audio, int, 0444);
 
+MODULE_PARM_DESC(spread_spectrum, "Enable spread spectrum on LVDS (0 = disable)");
+module_param_named(spread_spectrum, radeon_enable_ss, int, 0444);
+
 static int radeon_suspend(struct drm_device *dev, pm_message_t state)
 {
 	drm_radeon_private_t *dev_priv = dev->dev_private;