From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 28 Jun 2017 00:16:15 +0300
Subject: drm: arcpgu: Remove CRTC .prepare() helper operation
Git-commit: b35954722c5e753d3e7170d71b0058c9fd2620e3
Patch-mainline: v4.14-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

The CRTC helper .prepare() operation is legacy code, the atomic helpers
prefer the .disable() operation. As the arcpgu driver implements the
.disable() and .prepare() operations identicallly, .prepare() can be
removed.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170627211621.27767-2-laurent.pinchart+renesas@ideasonboard.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/arc/arcpgu_crtc.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/gpu/drm/arc/arcpgu_crtc.c
+++ b/drivers/gpu/drm/arc/arcpgu_crtc.c
@@ -163,7 +163,6 @@ static const struct drm_crtc_helper_func
 	.mode_set_nofb	= arc_pgu_crtc_mode_set_nofb,
 	.enable		= arc_pgu_crtc_enable,
 	.disable	= arc_pgu_crtc_disable,
-	.prepare	= arc_pgu_crtc_disable,
 	.atomic_begin	= arc_pgu_crtc_atomic_begin,
 };