4 files changed, 55 insertions, 1 deletions

diff --git a/drivers/media/platform/renesas/vsp1/vsp1_drm.c b/drivers/media/platform/renesas/vsp1/vsp1_drm.c
index 3954c138fa7b..1aa59a74672f 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_drm.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_drm.c
@@ -733,6 +733,8 @@ int vsp1_du_setup_lif(struct device *dev, unsigned int pipe_index,
 	if (ret < 0)
 		goto unlock;
 
+	vsp1_pipeline_dump(pipe, "LIF setup");
+
 	/* Enable the VSP1. */
 	ret = vsp1_device_get(vsp1);
 	if (ret < 0)
@@ -906,6 +908,9 @@ void vsp1_du_atomic_flush(struct device *dev, unsigned int pipe_index,
 	}
 
 	vsp1_du_pipeline_setup_inputs(vsp1, pipe);
+
+	vsp1_pipeline_dump(pipe, "atomic update");
+
 	vsp1_du_pipeline_configure(pipe);
 
 done:
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_pipe.c b/drivers/media/platform/renesas/vsp1/vsp1_pipe.c
index f7701c5ff492..87cb62cf38fa 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_pipe.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_pipe.c
@@ -301,6 +301,28 @@ void vsp1_pipeline_init(struct vsp1_pipeline *pipe)
 	pipe->state = VSP1_PIPELINE_STOPPED;
 }
 
+void __vsp1_pipeline_dump(struct _ddebug *dbg, struct vsp1_pipeline *pipe,
+			  const char *msg)
+{
+	struct vsp1_device *vsp1 = pipe->output->entity.vsp1;
+	struct vsp1_entity *entity;
+	bool first = true;
+
+	printk(KERN_DEBUG "%s: %s: pipe: ", dev_name(vsp1->dev), msg);
+
+	list_for_each_entry(entity, &pipe->entities, list_pipe) {
+		const char *name;
+
+		name = strchrnul(entity->subdev.name, ' ');
+		name = name ? name + 1 : entity->subdev.name;
+
+		pr_cont("%s%s", first ? "" : ", ", name);
+		first = false;
+	}
+
+	pr_cont("\n");
+}
+
 /* Must be called with the pipe irqlock held. */
 void vsp1_pipeline_run(struct vsp1_pipeline *pipe)
 {
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_pipe.h b/drivers/media/platform/renesas/vsp1/vsp1_pipe.h
index c1f411227de7..1ba7bdbad5a8 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_pipe.h
+++ b/drivers/media/platform/renesas/vsp1/vsp1_pipe.h
@@ -9,6 +9,7 @@
 #ifndef __VSP1_PIPE_H__
 #define __VSP1_PIPE_H__
 
+#include <linux/dynamic_debug.h>
 #include <linux/kref.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
@@ -142,6 +143,24 @@ struct vsp1_pipeline {
 void vsp1_pipeline_reset(struct vsp1_pipeline *pipe);
 void vsp1_pipeline_init(struct vsp1_pipeline *pipe);
 
+void __vsp1_pipeline_dump(struct _ddebug *, struct vsp1_pipeline *pipe,
+			  const char *msg);
+
+#if defined(CONFIG_DYNAMIC_DEBUG) || \
+	(defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
+#define vsp1_pipeline_dump(pipe, msg)			\
+	_dynamic_func_call("vsp1_pipeline_dump()", __vsp1_pipeline_dump, pipe, msg)
+#elif defined(DEBUG)
+#define vsp1_pipeline_dump(pipe, msg)			\
+	__vsp1_pipeline_dump(NULL, pipe, msg)
+#else
+#define vsp1_pipeline_dump(pipe, msg)			\
+({							\
+	if (0)						\
+		__vsp1_pipeline_dump(NULL, pipe, msg);	\
+})
+#endif
+
 void vsp1_pipeline_run(struct vsp1_pipeline *pipe);
 bool vsp1_pipeline_stopped(struct vsp1_pipeline *pipe);
 int vsp1_pipeline_stop(struct vsp1_pipeline *pipe);
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_video.c b/drivers/media/platform/renesas/vsp1/vsp1_video.c
index d3222c38709b..64d3a69d65b2 100644
--- a/drivers/media/platform/renesas/vsp1/vsp1_video.c
+++ b/drivers/media/platform/renesas/vsp1/vsp1_video.c
@@ -526,11 +526,19 @@ static int vsp1_video_pipeline_build(struct vsp1_pipeline *pipe,
 static int vsp1_video_pipeline_init(struct vsp1_pipeline *pipe,
 				    struct vsp1_video *video)
 {
+	int ret;
+
 	vsp1_pipeline_init(pipe);
 
 	pipe->frame_end = vsp1_video_pipeline_frame_end;
 
-	return vsp1_video_pipeline_build(pipe, video);
+	ret = vsp1_video_pipeline_build(pipe, video);
+	if (ret)
+		return ret;
+
+	vsp1_pipeline_dump(pipe, "video");
+
+	return 0;
 }
 
 static struct vsp1_pipeline *vsp1_video_pipeline_get(struct vsp1_video *video)