From: Rob Clark <robdclark@gmail.com>
Date: Wed, 25 Oct 2017 12:30:51 -0400
Subject: drm/msm/atomic: switch to drm_atomic_helper_check
Git-commit: 1f920175fff934b2bef0168cb70cf82b690f2d96
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Signed-off-by: Rob Clark <robdclark@gmail.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/msm/msm_atomic.c |   29 -----------------------------
 drivers/gpu/drm/msm/msm_drv.c    |    2 +-
 drivers/gpu/drm/msm/msm_drv.h    |    2 --
 3 files changed, 1 insertion(+), 32 deletions(-)

--- a/drivers/gpu/drm/msm/msm_atomic.c
+++ b/drivers/gpu/drm/msm/msm_atomic.c
@@ -146,35 +146,6 @@ static void commit_worker(struct work_st
 	complete_commit(container_of(work, struct msm_commit, work), true);
 }
 
-/*
- * this func is identical to the drm_atomic_helper_check, but we keep this
- * because we might eventually need to have a more finegrained check
- * sequence without using the atomic helpers.
- *
- * In the past, we first called drm_atomic_helper_check_planes, and then
- * drm_atomic_helper_check_modeset. We needed this because the MDP5 plane's
- * ->atomic_check could update ->mode_changed for pixel format changes.
- * This, however isn't needed now because if there is a pixel format change,
- * we just assign a new hwpipe for it with a new SMP allocation. We might
- * eventually hit a condition where we would need to do a full modeset if
- * we run out of planes. There, we'd probably need to set mode_changed.
- */
-int msm_atomic_check(struct drm_device *dev,
-		     struct drm_atomic_state *state)
-{
-	int ret;
-
-	ret = drm_atomic_helper_check_modeset(dev, state);
-	if (ret)
-		return ret;
-
-	ret = drm_atomic_helper_check_planes(dev, state);
-	if (ret)
-		return ret;
-
-	return ret;
-}
-
 /**
  * drm_atomic_helper_commit - commit validated state object
  * @dev: DRM device
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -47,7 +47,7 @@ static void msm_fb_output_poll_changed(s
 static const struct drm_mode_config_funcs mode_config_funcs = {
 	.fb_create = msm_framebuffer_create,
 	.output_poll_changed = msm_fb_output_poll_changed,
-	.atomic_check = msm_atomic_check,
+	.atomic_check = drm_atomic_helper_check,
 	.atomic_commit = msm_atomic_commit,
 	.atomic_state_alloc = msm_atomic_state_alloc,
 	.atomic_state_clear = msm_atomic_state_clear,
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -161,8 +161,6 @@ struct msm_format {
 	uint32_t pixel_format;
 };
 
-int msm_atomic_check(struct drm_device *dev,
-		     struct drm_atomic_state *state);
 int msm_atomic_commit(struct drm_device *dev,
 		struct drm_atomic_state *state, bool nonblock);
 struct drm_atomic_state *msm_atomic_state_alloc(struct drm_device *dev);