[PATCH v2 3/3] Revert "drm/client: Add drm_client_modeset_check()"

[linux@xxxxxxxxxxx]

From: "Dr. David Alan Gilbert" <linux@xxxxxxxxxxx>

drm_client_modeset_check() was explicitly added in 2020 by
commit 64593f2a6fc9 ("drm/client: Add drm_client_modeset_check()")
but has never been used.

This reverts commit 64593f2a6fc933bb9a410bc3f8c261f3e57a9601.

Signed-off-by: Dr. David Alan Gilbert <linux@xxxxxxxxxxx>
---
 drivers/gpu/drm/drm_client_modeset.c | 35 ++++------------------------
 include/drm/drm_client.h             |  1 -
 2 files changed, 4 insertions(+), 32 deletions(-)

diff --git a/drivers/gpu/drm/drm_client_modeset.c b/drivers/gpu/drm/drm_client_modeset.c
index cee5eafbfb81..39201c11eaac 100644
--- a/drivers/gpu/drm/drm_client_modeset.c
+++ b/drivers/gpu/drm/drm_client_modeset.c
@@ -995,7 +995,7 @@ bool drm_client_rotation(struct drm_mode_set *modeset, unsigned int *rotation)
 }
 EXPORT_SYMBOL(drm_client_rotation);
 
-static int drm_client_modeset_commit_atomic(struct drm_client_dev *client, bool active, bool check)
+static int drm_client_modeset_commit_atomic(struct drm_client_dev *client, bool active)
 {
 	struct drm_device *dev = client->dev;
 	struct drm_plane *plane;
@@ -1062,10 +1062,7 @@ static int drm_client_modeset_commit_atomic(struct drm_client_dev *client, bool
 		}
 	}
 
-	if (check)
-		ret = drm_atomic_check_only(state);
-	else
-		ret = drm_atomic_commit(state);
+	ret = drm_atomic_commit(state);
 
 out_state:
 	if (ret == -EDEADLK)
@@ -1126,30 +1123,6 @@ static int drm_client_modeset_commit_legacy(struct drm_client_dev *client)
 	return ret;
 }
 
-/**
- * drm_client_modeset_check() - Check modeset configuration
- * @client: DRM client
- *
- * Check modeset configuration.
- *
- * Returns:
- * Zero on success or negative error code on failure.
- */
-int drm_client_modeset_check(struct drm_client_dev *client)
-{
-	int ret;
-
-	if (!drm_drv_uses_atomic_modeset(client->dev))
-		return 0;
-
-	mutex_lock(&client->modeset_mutex);
-	ret = drm_client_modeset_commit_atomic(client, true, true);
-	mutex_unlock(&client->modeset_mutex);
-
-	return ret;
-}
-EXPORT_SYMBOL(drm_client_modeset_check);
-
 /**
  * drm_client_modeset_commit_locked() - Force commit CRTC configuration
  * @client: DRM client
@@ -1168,7 +1141,7 @@ int drm_client_modeset_commit_locked(struct drm_client_dev *client)
 
 	mutex_lock(&client->modeset_mutex);
 	if (drm_drv_uses_atomic_modeset(dev))
-		ret = drm_client_modeset_commit_atomic(client, true, false);
+		ret = drm_client_modeset_commit_atomic(client, true);
 	else
 		ret = drm_client_modeset_commit_legacy(client);
 	mutex_unlock(&client->modeset_mutex);
@@ -1246,7 +1219,7 @@ int drm_client_modeset_dpms(struct drm_client_dev *client, int mode)
 
 	mutex_lock(&client->modeset_mutex);
 	if (drm_drv_uses_atomic_modeset(dev))
-		ret = drm_client_modeset_commit_atomic(client, mode == DRM_MODE_DPMS_ON, false);
+		ret = drm_client_modeset_commit_atomic(client, mode == DRM_MODE_DPMS_ON);
 	else
 		drm_client_modeset_dpms_legacy(client, mode);
 	mutex_unlock(&client->modeset_mutex);
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index bc0e66f9c425..ead3c3526ee3 100644
--- a/include/drm/drm_client.h
+++ b/include/drm/drm_client.h
@@ -177,7 +177,6 @@ int drm_client_modeset_create(struct drm_client_dev *client);
 void drm_client_modeset_free(struct drm_client_dev *client);
 int drm_client_modeset_probe(struct drm_client_dev *client, unsigned int width, unsigned int height);
 bool drm_client_rotation(struct drm_mode_set *modeset, unsigned int *rotation);
-int drm_client_modeset_check(struct drm_client_dev *client);
 int drm_client_modeset_commit_locked(struct drm_client_dev *client);
 int drm_client_modeset_commit(struct drm_client_dev *client);
 int drm_client_modeset_dpms(struct drm_client_dev *client, int mode);
-- 
2.47.0