drm/exynos: fix to set pipe of crtc

It is enough to set pipe of crtc to manager only when do mode_set of
crtc.

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.h b/drivers/gpu/drm/exynos/exynos_drm_encoder.h
index eb7d231..14dab25 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.h
@@ -48,5 +48,6 @@
 void exynos_drm_encoder_crtc_dpms(struct drm_encoder *encoder, void *data);
 void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data);
 void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data);
+void exynos_drm_encoder_crtc_pipe(struct drm_encoder *encoder, void *data);
 
 #endif