drm/atomic: Make disable_all helper fully disable the crtc.

It seems that nouveau requires this, so best to do this in the helper.
This allows nouveau to use the atomic suspend helper.

Cc: nouveau@lists.freedesktop.org
Acked-by: Ben Skeggs <bskeggs@redhat.com> #irc
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1487685102-31991-2-git-send-email-maarten.lankhorst@linux.intel.com

1 files changed, 1 insertions, 112 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 72fdba1a1c5d..33269c7df30f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -625,117 +625,6 @@ nouveau_display_destroy(struct drm_device *dev)
 	kfree(disp);
 }
 
-static int
-nouveau_atomic_disable_connector(struct drm_atomic_state *state,
-				 struct drm_connector *connector)
-{
-	struct drm_connector_state *connector_state;
-	struct drm_crtc *crtc;
-	struct drm_crtc_state *crtc_state;
-	struct drm_plane_state *plane_state;
-	struct drm_plane *plane;
-	int ret;
-
-	if (!(crtc = connector->state->crtc))
-		return 0;
-
-	connector_state = drm_atomic_get_connector_state(state, connector);
-	if (IS_ERR(connector_state))
-		return PTR_ERR(connector_state);
-
-	ret = drm_atomic_set_crtc_for_connector(connector_state, NULL);
-	if (ret)
-		return ret;
-
-	crtc_state = drm_atomic_get_crtc_state(state, crtc);
-	if (IS_ERR(crtc_state))
-		return PTR_ERR(crtc_state);
-
-	ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
-	if (ret)
-		return ret;
-
-	crtc_state->active = false;
-
-	drm_for_each_plane_mask(plane, connector->dev, crtc_state->plane_mask) {
-		plane_state = drm_atomic_get_plane_state(state, plane);
-		if (IS_ERR(plane_state))
-			return PTR_ERR(plane_state);
-
-		ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
-		if (ret)
-			return ret;
-
-		drm_atomic_set_fb_for_plane(plane_state, NULL);
-	}
-
-	return 0;
-}
-
-static int
-nouveau_atomic_disable(struct drm_device *dev,
-		       struct drm_modeset_acquire_ctx *ctx)
-{
-	struct drm_atomic_state *state;
-	struct drm_connector *connector;
-	int ret;
-
-	state = drm_atomic_state_alloc(dev);
-	if (!state)
-		return -ENOMEM;
-
-	state->acquire_ctx = ctx;
-
-	drm_for_each_connector(connector, dev) {
-		ret = nouveau_atomic_disable_connector(state, connector);
-		if (ret)
-			break;
-	}
-
-	if (ret == 0)
-		ret = drm_atomic_commit(state);
-	drm_atomic_state_put(state);
-	return ret;
-}
-
-static struct drm_atomic_state *
-nouveau_atomic_suspend(struct drm_device *dev)
-{
-	struct drm_modeset_acquire_ctx ctx;
-	struct drm_atomic_state *state;
-	int ret;
-
-	drm_modeset_acquire_init(&ctx, 0);
-
-retry:
-	ret = drm_modeset_lock_all_ctx(dev, &ctx);
-	if (ret < 0) {
-		state = ERR_PTR(ret);
-		goto unlock;
-	}
-
-	state = drm_atomic_helper_duplicate_state(dev, &ctx);
-	if (IS_ERR(state))
-		goto unlock;
-
-	ret = nouveau_atomic_disable(dev, &ctx);
-	if (ret < 0) {
-		drm_atomic_state_put(state);
-		state = ERR_PTR(ret);
-		goto unlock;
-	}
-
-unlock:
-	if (PTR_ERR(state) == -EDEADLK) {
-		drm_modeset_backoff(&ctx);
-		goto retry;
-	}
-
-	drm_modeset_drop_locks(&ctx);
-	drm_modeset_acquire_fini(&ctx);
-	return state;
-}
-
 int
 nouveau_display_suspend(struct drm_device *dev, bool runtime)
 {
@@ -744,7 +633,7 @@ nouveau_display_suspend(struct drm_device *dev, bool runtime)
 
 	if (drm_drv_uses_atomic_modeset(dev)) {
 		if (!runtime) {
-			disp->suspend = nouveau_atomic_suspend(dev);
+			disp->suspend = drm_atomic_helper_suspend(dev);
 			if (IS_ERR(disp->suspend)) {
 				int ret = PTR_ERR(disp->suspend);
 				disp->suspend = NULL;