From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 28 Jun 2017 00:16:18 +0300
Subject: drm: vmwgfx: Remove unneeded CRTC .prepare() helper operation
Git-commit: 4e004f644bc40b3d51653e91cc58af7c6b102f56
Patch-mainline: v4.14-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

The CRTC .prepare() helper operation is part of the legacy helpers and
is deprecated in favour of the .disable() helper operation. As the
vmwgfx driver provides a .disable() helper operation, and as the
.prepare() helper operation implementation is empty, we can remove it.

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/20170627211621.27767-5-laurent.pinchart+renesas@ideasonboard.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c |   13 -------------
 1 file changed, 13 deletions(-)

--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
@@ -203,18 +203,6 @@ static void vmw_ldu_crtc_mode_set_nofb(s
 }
 
 /**
- * vmw_ldu_crtc_helper_prepare - Noop
- *
- * @crtc: CRTC associated with the new screen
- *
- * Prepares the CRTC for a mode set, but we don't need to do anything here.
- *
- */
-static void vmw_ldu_crtc_helper_prepare(struct drm_crtc *crtc)
-{
-}
-
-/**
  * vmw_ldu_crtc_helper_commit - Noop
  *
  * @crtc: CRTC associated with the new screen
@@ -388,7 +376,6 @@ drm_plane_helper_funcs vmw_ldu_primary_p
 };
 
 static const struct drm_crtc_helper_funcs vmw_ldu_crtc_helper_funcs = {
-	.prepare = vmw_ldu_crtc_helper_prepare,
 	.commit = vmw_ldu_crtc_helper_commit,
 	.disable = vmw_ldu_crtc_helper_disable,
 	.mode_set_nofb = vmw_ldu_crtc_mode_set_nofb,