drm_modes: add of_videomode helpers

[firefly-linux-kernel-4.4.55.git] / include / drm / drmP.h

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index d5c06ffb7a310163187a4e8963ecd36abf7a0d54..fcc9d23825907d0112a1935447c5d43948effdce 100644 (file)
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -85,6 +85,7 @@ struct module;
 struct drm_file;
 struct drm_device;
 
+struct device_node;
 struct videomode;
 
 #include <drm/drm_os_linux.h>
@@ -1460,6 +1461,9 @@ drm_mode_create_from_cmdline_mode(struct drm_device *dev,
 
 extern int drm_display_mode_from_videomode(const struct videomode *vm,
                                           struct drm_display_mode *dmode);
+extern int of_get_drm_display_mode(struct device_node *np,
+                                  struct drm_display_mode *dmode,
+                                  int index);
 
 /* Modesetting support */
 extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc);