kernel/linux.git/drivers/media/platform/stm32, branch linux-4.16.y

media: v4l2-async: simplify v4l2_async_subdev structure

2017-12-29T12:14:28+00:00

The V4L2_ASYNC_MATCH_FWNODE match criteria requires just one struct to be filled (struct fwnode_handle). The V4L2_ASYNC_MATCH_DEVNAME match criteria requires just a device name. So, it doesn't make sense to enclose those into structs, as the criteria can go directly into the union. That makes easier to document it, as we don't need to document weird senseless structs. At drivers, this makes even clearer about the match criteria. Acked-by: Sylwester Nawrocki Acked-by: Benoit Parrot Acked-by: Alexandre Belloni Acked-by: Sakari Ailus Acked-by: Philipp Zabel Acked-by: Hyun Kwon Acked-by: Niklas Söderlund Acked-by: Lad, Prabhakar Signed-off-by: Mauro Carvalho Chehab

media: v4l: async: Move async subdev notifier operations to a separate structure

2017-10-31T17:51:45+00:00

The async subdev notifier .bound(), .unbind() and .complete() operations are function pointers stored directly in the v4l2_async_subdev structure. As the structure isn't immutable, this creates a potential security risk as the function pointers are mutable. To fix this, move the function pointers to a new v4l2_async_subdev_operations structure that can be made const in drivers. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Acked-by: Niklas Söderlund Reviewed-by: Sebastian Reichel Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: g_/s_selection crop support

2017-08-26T18:10:41+00:00

Implements g_/s_selection crop support by using DCMI crop hardware feature. User can first get the maximum supported resolution of the sensor by calling g_selection(V4L2_SEL_TGT_CROP_BOUNDS). Then user call to s_selection(V4L2_SEL_TGT_CROP) will reset sensor to its maximum resolution and crop request is saved for later usage in s_fmt(). Next call to s_fmt() will check if sensor can do frame size request with crop request. If sensor supports only discrete frame sizes, the frame size which is larger than user request is selected in order to be able to match the crop request. Then s_fmt() resolution user request is adjusted to match crop request resolution. Signed-off-by: Hugues Fruchet Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: cleanup variable/fields namings

2017-08-26T18:09:26+00:00

Uniformize "pixfmt" variables to "pix". Change "current_fmt" & "dcmi_fmt" variables to variables with "sd_" prefix to explicitly refer to subdev format. Signed-off-by: Hugues Fruchet Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: revisit control register handling

2017-08-26T18:08:39+00:00

Simplify bits handling of DCMI_CR register. Signed-off-by: Hugues Fruchet Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: catch dma submission error

2017-08-26T17:53:34+00:00

Test cookie return by dmaengine_submit() and return error if any. Signed-off-by: Hugues Fruchet Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: stm32-cec: use CEC_CAP_DEFAULTS

2017-08-26T12:36:58+00:00

Use the new CEC_CAP_DEFAULTS define in this driver. Signed-off-by: Hans Verkuil Acked-by: Benjamin Gaignard Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: explicitly request exclusive reset control

2017-08-08T10:27:06+00:00

Commit a53e35db70d1 ("reset: Ensure drivers are explicit when requesting reset lines") started to transition the reset control request API calls to explicitly state whether the driver needs exclusive or shared reset control behavior. Convert all drivers requesting exclusive resets to the explicit API call so the temporary transition helpers can be removed. No functional changes. Cc: Maxime Coquelin Cc: Alexandre Torgue Signed-off-by: Philipp Zabel Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: stm32-dcmi: constify vb2_ops structure

2017-07-19T19:02:50+00:00

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. This issue was detected using Coccinelle and the following semantic patch: @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: Gustavo A. R. Silva Acked-by: Hugues Fruchet Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: add STM32 cec driver

2017-06-13T16:48:18+00:00

This patch add cec driver for STM32 platforms. cec hardware block isn't not always used with hdmi so cec notifier is not implemented. That will be done later when STM32 DSI driver will be available. Driver compliance has been tested with cec-ctl and cec-compliance tools. Signed-off-by: Benjamin Gaignard Signed-off-by: Yannick Fertre [hans.verkuil@cisco.com: modified platform/Makefile to use obj-y] Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab