drm/exynos: pass struct exynos_drm_plane in update/enable

We already have the plane pointer in before calling .update_plane() or
disable_plane() so pass it directly to those calls avoiding a new
conversion from zpos to struct exynos_drm_plane.

v2: don't remove check for suspended in FIMD (comment by Joonyoung)

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index eb9eec9..b5aa5b7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -180,7 +180,7 @@
 			      state->src_w >> 16, state->src_h >> 16);
 
 	if (exynos_crtc->ops->update_plane)
-		exynos_crtc->ops->update_plane(exynos_crtc, exynos_plane->zpos);
+		exynos_crtc->ops->update_plane(exynos_crtc, exynos_plane);
 }
 
 static void exynos_plane_atomic_disable(struct drm_plane *plane,
@@ -194,7 +194,7 @@
 
 	if (exynos_crtc->ops->disable_plane)
 		exynos_crtc->ops->disable_plane(exynos_crtc,
-						exynos_plane->zpos);
+						exynos_plane);
 }
 
 static const struct drm_plane_helper_funcs plane_helper_funcs = {