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-rw-r--r--include/drm/drm_crtc.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 3894f85..2765a4e 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -882,6 +882,10 @@ extern int drm_plane_init(struct drm_device *dev,
bool priv);
extern void drm_plane_cleanup(struct drm_plane *plane);
extern void drm_plane_force_disable(struct drm_plane *plane);
+extern int drm_crtc_check_viewport(const struct drm_crtc *crtc,
+ int x, int y,
+ const struct drm_display_mode *mode,
+ const struct drm_framebuffer *fb);
extern void drm_encoder_cleanup(struct drm_encoder *encoder);
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