drm: Export drm_probe_ddc()

Tested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/drm_edid.c

@@ -395,13 +395,14 @@ out:
  * \param adapter : i2c device adaptor
  * \return 1 on success
  */
-static bool
+bool
 drm_probe_ddc(struct i2c_adapter *adapter)
 {
 	unsigned char out;
 
 	return (drm_do_probe_ddc_edid(adapter, &out, 0, 1) == 0);
 }
+EXPORT_SYMBOL(drm_probe_ddc);
 
 /**
  * drm_get_edid - get EDID data, if available

include/drm/drm_crtc.h

@@ -861,6 +861,7 @@ extern char *drm_get_tv_subconnector_name(int val);
 extern char *drm_get_tv_select_name(int val);
 extern void drm_fb_release(struct drm_file *file_priv);
 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
+extern bool drm_probe_ddc(struct i2c_adapter *adapter);
 extern struct edid *drm_get_edid(struct drm_connector *connector,
 				 struct i2c_adapter *adapter);
 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);