Merge branch 'next' into for-linus

Prepare second round of input updates for 5.3 merge window.

1 files changed, 21 insertions, 1 deletions

diff --git a/drivers/media/platform/vimc/vimc-streamer.h b/drivers/media/platform/vimc/vimc-streamer.h
index 752af2e2d5a2..2b3667408794 100644
--- a/drivers/media/platform/vimc/vimc-streamer.h
+++ b/drivers/media/platform/vimc/vimc-streamer.h
@@ -15,12 +15,32 @@
 
 #define VIMC_STREAMER_PIPELINE_MAX_SIZE 16
 
+/**
+ * struct vimc_stream - struct that represents a stream in the pipeline
+ *
+ * @pipe:		the media pipeline object associated with this stream
+ * @ved_pipeline:	array containing all the entities participating in the
+ * stream. The order is from a video device (usually a capture device) where
+ * stream_on was called, to the entity generating the first base image to be
+ * processed in the pipeline.
+ * @pipe_size:		size of @ved_pipeline
+ * @kthread:		thread that generates the frames of the stream.
+ * @producer_pixfmt:	the pixel format requested from the pipeline. This must
+ * be set just before calling vimc_streamer_s_stream(ent, 1). This value is
+ * propagated up to the source of the base image (usually a sensor node) and
+ * can be modified by entities during s_stream callback to request a different
+ * format from rest of the pipeline.
+ *
+ * When the user call stream_on in a video device, struct vimc_stream is
+ * used to keep track of all entities and subdevices that generates and
+ * process frames for the stream.
+ */
 struct vimc_stream {
 	struct media_pipeline pipe;
 	struct vimc_ent_device *ved_pipeline[VIMC_STREAMER_PIPELINE_MAX_SIZE];
 	unsigned int pipe_size;
-	u8 *frame;
 	struct task_struct *kthread;
+	u32 producer_pixfmt;
 };
 
 /**