kernel.git/drivers/media/platform/xilinx, branch linux-4.13.y

[media] v4l: Switch from V4L2 OF not V4L2 fwnode API

2017-06-06T12:58:16Z

Switch users of the v4l2_of_ APIs to the more generic v4l2_fwnode_ APIs. Async OF matching is replaced by fwnode matching and OF matching support is removed. Signed-off-by: Sakari Ailus Acked-by: Benoit Parrot # i2c/ov2569.c, am437x/am437x-vpfe.c and ti-vpe/cal.c Tested-by: Hans Verkuil # Atmel sama5d3 board + ov2640 sensor Tested-by: Philipp Zabel Signed-off-by: Mauro Carvalho Chehab

[media] media: platform: xilinx: xilinx-tpg: constify v4l2_subdev_* structures

2017-02-03T11:21:50Z

v4l2_subdev_{core/pad/video}_ops structures are stored in the fields of the v4l2_subdev_ops structure which are of type const. Also, v4l2_subdev_ops structure is passed to a function having its argument of type const. As these structures are never modified, so declare them as const. Done using Coccinelle: (One of the scripts used) @r1 disable optional_qualifier @ identifier i; position p; @@ static struct v4l2_subdev_video_ops i@p = {...}; @ok1@ identifier r1.i; position p; struct v4l2_subdev_ops obj; @@ obj.video=&i@p; @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct v4l2_subdev_video_ops i; File size before: text data bss dec hex filename 6170 2752 144 9066 236a media/platform/xilinx/xilinx-tpg.o File size after: text data bss dec hex filename 6666 2384 8 9058 2362 media/platform/xilinx/xilinx-tpg.o Signed-off-by: Bhumika Goyal Reviewed-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab

[media] xilinx: Use a local media device pointer instead

2017-01-30T13:35:02Z

The function has a local variable that points to the media device; use that instead of finding the media device under the entity. Signed-off-by: Sakari Ailus Reviewed-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab

[media] media: Rename graph and pipeline structs and functions

2017-01-27T18:13:24Z

The media_entity_pipeline_start() and media_entity_pipeline_stop() functions are renamed as media_pipeline_start() and media_pipeline_stop(), respectively. The reason is two-fold: the pipeline struct is, rightly, already called media_pipeline (rather than media_entity_pipeline) and what this really is about is a pipeline. A pipeline consists of entities --- and, well, other objects embedded in these entities. As the pipeline object will be in the future moved from entities to pads in order to support multiple pipelines through a single entity, do the renaming now. Similarly, functions operating on struct media_entity_graph as well as the struct itself are renamed by dropping the "entity_" part from the prefix of the function family and the data structure. The graph traversal which is what the functions are about is not specifically about entities only and will operate on pads for the same reason as the media pipeline. The patch has been generated using the following command: git grep -l media_entity |xargs perl -i -pe ' s/media_entity_pipeline/media_pipeline/g; s/media_entity_graph/media_graph/g' And a few manual edits related to line start alignment and line wrapping. Signed-off-by: Sakari Ailus Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab

[media] platform: constify vb2_ops structures

2016-09-19T19:21:06Z

Check for vb2_ops structures that are only stored in the ops field of a vb2_queue structure. That field is declared const, so vb2_ops structures that have this property can be declared as const also. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // @r disable optional_qualifier@ identifier i; position p; @@ static struct vb2_ops i@p = { ... }; @ok@ identifier r.i; struct vb2_queue e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct vb2_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct vb2_ops i = { ... }; // Signed-off-by: Julia Lawall Reviewed-by: Laurent Pinchart Reviewed-by: Fabien Dessenne Reviewed-by: Jacek Anaszewski Reviewed-by: Benoit Parrot [hans.verkuil@cisco.com: dropped soc_camera/rcar_vin.c patch because that driver will be removed] Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] vb2: replace void alloc_ctxs by struct device alloc_devs

2016-07-08T17:45:07Z

Make this a proper typed array. Drop the old allocate context code since that is no longer used. Note that the memops functions now get a struct device pointer instead of the struct device ** that was there initially (actually a void pointer to a struct containing only a struct device pointer). This code is now a lot cleaner. Signed-off-by: Hans Verkuil Reviewed-by: Laurent Pinchart Cc: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] media/platform: convert drivers to use the new vb2_queue dev field

2016-07-08T17:40:07Z

Stop using alloc_ctx and just fill in the device pointer. Signed-off-by: Hans Verkuil Acked-by: Fabien Dessenne Acked-by: Benoit Parrot Reviewed-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab

[media] xilinx-vipp: remove unnecessary of_node_put

2016-05-07T14:45:38Z

of_graph_get_next_endpoint(node, ep) decrements refcount on ep. When next==NULL we break and refcount on ep is decremented again. Signed-off-by: Franck Jullien Signed-off-by: Mauro Carvalho Chehab

[media] v4l: xilinx: Use the new media graph walk interface

2016-01-11T14:19:19Z

The media graph walk requires initialisation and cleanup soon. Update the users to perform the soon necessary API calls. Signed-off-by: Sakari Ailus Cc: Hyun Kwon Signed-off-by: Mauro Carvalho Chehab

[media] media-device: split media initialization and registration

2016-01-11T14:19:15Z

The media device node is registered and so made visible to user-space before entities are registered and links created which means that the media graph obtained by user-space could be only partially enumerated if that happens too early before all the graph has been created. To avoid this race condition, split the media init and registration in separate functions and only register the media device node when all the pending subdevices have been registered, either explicitly by the driver or asynchronously using v4l2_async_register_subdev(). The media_device_register() had a check for drivers not filling dev and model fields but all drivers in mainline set them and not doing it will be a driver bug so change the function return to void and add a BUG_ON() for dev being NULL instead. Also, add a media_device_cleanup() function that will destroy the graph_mutex that is initialized in media_device_init(). [mchehab@osg.samsung.com: Fix compilation if !CONFIG_MEDIA_CONTROLLER and remove two warnings added by this changeset] Suggested-by: Sakari Ailus Signed-off-by: Javier Martinez Canillas Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab