Merge git://git.linuxtv.org/media_stage into media_tree

* git://git.linuxtv.org/media_stage: (216 commits)
  media: v4l2-ctrls-api.c: move ctrl->is_new = 1 to the correct line
  media: Revert "media: saa7146: deprecate hexium_gemini/orion, mxb and ttpci"
  media: Revert "media: av7110: move to staging/media/deprecated/saa7146"
  media: imx-pxp: convert to regmap
  media: imx-pxp: Use non-threaded IRQ
  media: imx-pxp: Introduce pxp_read() and pxp_write() wrappers
  media: imx-pxp: Implement frame size enumeration
  media: imx-pxp: Pass pixel format value to find_format()
  media: imx-pxp: Add media controller support
  media: imx-pxp: Don't set bus_info manually in .querycap()
  media: imx-pxp: Sort headers alphabetically
  media: imx-pxp: add support for i.MX7D
  media: imx-pxp: make data_path_ctrl0 platform dependent
  media: imx-pxp: disable LUT block
  media: imx-pxp: explicitly disable unused blocks
  media: imx-pxp: extract helper function to setup data path
  media: imx-pxp: detect PXP version
  media: dt-bindings: media: fsl-pxp: convert to yaml
  media: imx-mipi-csis: Implement .init_cfg() using .set_fmt()
  media: imx-mipi-csis: Use V4L2 subdev active state
  ...

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

1 files changed, 62 insertions, 7 deletions

diff --git a/drivers/media/mc/mc-entity.c b/drivers/media/mc/mc-entity.c
index 6ec2092d7f80..e7216a985ba6 100644
--- a/drivers/media/mc/mc-entity.c
+++ b/drivers/media/mc/mc-entity.c
@@ -716,7 +716,7 @@ done:
 __must_check int __media_pipeline_start(struct media_pad *pad,
 					struct media_pipeline *pipe)
 {
-	struct media_device *mdev = pad->entity->graph_obj.mdev;
+	struct media_device *mdev = pad->graph_obj.mdev;
 	struct media_pipeline_pad *err_ppad;
 	struct media_pipeline_pad *ppad;
 	int ret;
@@ -724,8 +724,8 @@ __must_check int __media_pipeline_start(struct media_pad *pad,
 	lockdep_assert_held(&mdev->graph_mutex);
 
 	/*
-	 * If the entity is already part of a pipeline, that pipeline must
-	 * be the same as the pipe given to media_pipeline_start().
+	 * If the pad is already part of a pipeline, that pipeline must be the
+	 * same as the pipe given to media_pipeline_start().
 	 */
 	if (WARN_ON(pad->pipe && pad->pipe != pipe))
 		return -EINVAL;
@@ -864,7 +864,7 @@ EXPORT_SYMBOL_GPL(__media_pipeline_start);
 __must_check int media_pipeline_start(struct media_pad *pad,
 				      struct media_pipeline *pipe)
 {
-	struct media_device *mdev = pad->entity->graph_obj.mdev;
+	struct media_device *mdev = pad->graph_obj.mdev;
 	int ret;
 
 	mutex_lock(&mdev->graph_mutex);
@@ -901,7 +901,7 @@ EXPORT_SYMBOL_GPL(__media_pipeline_stop);
 
 void media_pipeline_stop(struct media_pad *pad)
 {
-	struct media_device *mdev = pad->entity->graph_obj.mdev;
+	struct media_device *mdev = pad->graph_obj.mdev;
 
 	mutex_lock(&mdev->graph_mutex);
 	__media_pipeline_stop(pad);
@@ -911,7 +911,7 @@ EXPORT_SYMBOL_GPL(media_pipeline_stop);
 
 __must_check int media_pipeline_alloc_start(struct media_pad *pad)
 {
-	struct media_device *mdev = pad->entity->graph_obj.mdev;
+	struct media_device *mdev = pad->graph_obj.mdev;
 	struct media_pipeline *new_pipe = NULL;
 	struct media_pipeline *pipe;
 	int ret;
@@ -919,7 +919,7 @@ __must_check int media_pipeline_alloc_start(struct media_pad *pad)
 	mutex_lock(&mdev->graph_mutex);
 
 	/*
-	 * Is the entity already part of a pipeline? If not, we need to allocate
+	 * Is the pad already part of a pipeline? If not, we need to allocate
 	 * a pipe.
 	 */
 	pipe = media_pad_pipeline(pad);
@@ -945,6 +945,61 @@ out:
 }
 EXPORT_SYMBOL_GPL(media_pipeline_alloc_start);
 
+struct media_pad *
+__media_pipeline_pad_iter_next(struct media_pipeline *pipe,
+			       struct media_pipeline_pad_iter *iter,
+			       struct media_pad *pad)
+{
+	if (!pad)
+		iter->cursor = pipe->pads.next;
+
+	if (iter->cursor == &pipe->pads)
+		return NULL;
+
+	pad = list_entry(iter->cursor, struct media_pipeline_pad, list)->pad;
+	iter->cursor = iter->cursor->next;
+
+	return pad;
+}
+EXPORT_SYMBOL_GPL(__media_pipeline_pad_iter_next);
+
+int media_pipeline_entity_iter_init(struct media_pipeline *pipe,
+				    struct media_pipeline_entity_iter *iter)
+{
+	return media_entity_enum_init(&iter->ent_enum, pipe->mdev);
+}
+EXPORT_SYMBOL_GPL(media_pipeline_entity_iter_init);
+
+void media_pipeline_entity_iter_cleanup(struct media_pipeline_entity_iter *iter)
+{
+	media_entity_enum_cleanup(&iter->ent_enum);
+}
+EXPORT_SYMBOL_GPL(media_pipeline_entity_iter_cleanup);
+
+struct media_entity *
+__media_pipeline_entity_iter_next(struct media_pipeline *pipe,
+				  struct media_pipeline_entity_iter *iter,
+				  struct media_entity *entity)
+{
+	if (!entity)
+		iter->cursor = pipe->pads.next;
+
+	while (iter->cursor != &pipe->pads) {
+		struct media_pipeline_pad *ppad;
+		struct media_entity *entity;
+
+		ppad = list_entry(iter->cursor, struct media_pipeline_pad, list);
+		entity = ppad->pad->entity;
+		iter->cursor = iter->cursor->next;
+
+		if (!media_entity_enum_test_and_set(&iter->ent_enum, entity))
+			return entity;
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(__media_pipeline_entity_iter_next);
+
 /* -----------------------------------------------------------------------------
  * Links management
  */