drm: omapdrm: Make the omap_crtc_flush function static

The function isn't used outside of its compilation unit, make it static.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/omap_crtc.c

@@ -359,7 +359,7 @@ static void omap_crtc_vblank_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
 	complete(&omap_crtc->completion);
 }
 
-int omap_crtc_flush(struct drm_crtc *crtc)
+static int omap_crtc_flush(struct drm_crtc *crtc)
 {
 	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
 

drivers/gpu/drm/omapdrm/omap_drv.h

@@ -142,7 +142,6 @@ void omap_fbdev_free(struct drm_device *dev);
 
 const struct omap_video_timings *omap_crtc_timings(struct drm_crtc *crtc);
 enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
-int omap_crtc_flush(struct drm_crtc *crtc);
 void omap_crtc_cancel_page_flip(struct drm_crtc *crtc, struct drm_file *file);
 void omap_crtc_pre_init(void);
 void omap_crtc_pre_uninit(void);