[PATCH v7 13/14] drm/atomic-helper: Export drm_atomic_helper_wait_for_fences

[Philipp Zabel]

From: Daniel Kurtz <djkurtz at chromium.org>

This is useful for drivers that want to implement async commits, but
need to wait on per-plane fences.

Signed-off-by: Daniel Kurtz <djkurtz at chromium.org>
Signed-off-by: Philipp Zabel <p.zabel at pengutronix.de>
---
 drivers/gpu/drm/drm_atomic_helper.c | 7 ++++---
 include/drm/drm_atomic_helper.h     | 2 ++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 0c6f621..ce84d99 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -886,8 +886,8 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
 }
 EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_enables);
 
-static void wait_for_fences(struct drm_device *dev,
-			    struct drm_atomic_state *state)
+void drm_atomic_helper_wait_for_fences(struct drm_device *dev,
+				       struct drm_atomic_state *state)
 {
 	struct drm_plane *plane;
 	struct drm_plane_state *plane_state;
@@ -904,6 +904,7 @@ static void wait_for_fences(struct drm_device *dev,
 		plane->state->fence = NULL;
 	}
 }
+EXPORT_SYMBOL(drm_atomic_helper_wait_for_fences);
 
 static bool framebuffer_changed(struct drm_device *dev,
 				struct drm_atomic_state *old_state,
@@ -1049,7 +1050,7 @@ int drm_atomic_helper_commit(struct drm_device *dev,
 	 * current layout.
 	 */
 
-	wait_for_fences(dev, state);
+	drm_atomic_helper_wait_for_fences(dev, state);
 
 	drm_atomic_helper_commit_modeset_disables(dev, state);
 
diff --git a/include/drm/drm_atomic_helper.h b/include/drm/drm_atomic_helper.h
index 8cba54a..92b5699 100644
--- a/include/drm/drm_atomic_helper.h
+++ b/include/drm/drm_atomic_helper.h
@@ -42,6 +42,8 @@ int drm_atomic_helper_commit(struct drm_device *dev,
 			     struct drm_atomic_state *state,
 			     bool async);
 
+void drm_atomic_helper_wait_for_fences(struct drm_device *dev,
+				       struct drm_atomic_state *state);
 void drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
 					struct drm_atomic_state *old_state);
 
-- 
2.6.2