drm: handle cursor_set2 in restore_fbdev_mode

If a driver uses the cursor_set2 crtc callback rather than
cursor_set, use that. This fixes the fbdev helper for drivers
that use cursor_set2.

Signed-off-by: Alex Deucher <[e-mail]>
Reviewed-by: Christian König <[e-mail]>
Reviewed-by: Michel Dänzer <[e-mail]>
Signed-off-by: Dave Airlie <[e-mail]>

drivers/gpu/drm/drm_fb_helper.c

···
 		struct drm_crtc *crtc = mode_set->crtc;
 		int ret;
 
-		if (crtc->funcs->cursor_set) {
+		if (crtc->funcs->cursor_set2) {
+			ret = crtc->funcs->cursor_set2(crtc, NULL, 0, 0, 0, 0, 0);
+			if (ret)
+				error = true;
+		} else if (crtc->funcs->cursor_set) {
 			ret = crtc->funcs->cursor_set(crtc, NULL, 0, 0, 0);
 			if (ret)
 				error = true;