linux.git/drivers/media/i2c, branch v5.8

Merge tag 'media/v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2020-06-04T03:59:38+00:00

Pull media updates from Mauro Carvalho Chehab:

 - Media documentation is now split into admin-guide, driver-api and
   userspace-api books (a longstanding request from Jon);

 - The media Kconfig was reorganized, in order to make easier to select
   drivers and their dependencies;

 - The testing drivers now has a separate directory;

 - added a new driver for Rockchip Video Decoder IP;

 - The atomisp staging driver was resurrected. It is meant to work with
   4 generations of cameras on Atom-based laptops, tablets and cell
   phones. So, it seems worth investing time to cleanup this driver and
   making it in good shape.

 - Added some V4L2 core ancillary routines to help with h264 codecs;

 - Added an ov2740 image sensor driver;

 - The si2157 gained support for Analog TV, which, in turn, added
   support for some cx231xx and cx23885 boards to also support analog
   standards;

 - Added some V4L2 controls (V4L2_CID_CAMERA_ORIENTATION and
   V4L2_CID_CAMERA_SENSOR_ROTATION) to help identifying where the camera
   is located at the device;

 - VIDIOC_ENUM_FMT was extended to support MC-centric devices;

 - Lots of drivers improvements and cleanups.

* tag 'media/v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (503 commits)
  media: Documentation: media: Refer to mbus format documentation from CSI-2 docs
  media: s5k5baf: Replace zero-length array with flexible-array
  media: i2c: imx219: Drop  and 
  media: i2c: Add ov2740 image sensor driver
  media: ov8856: Implement sensor module revision identification
  media: ov8856: Add devicetree support
  media: dt-bindings: ov8856: Document YAML bindings
  media: dvb-usb: Add Cinergy S2 PCIe Dual Port support
  media: dvbdev: Fix tuner->demod media controller link
  media: dt-bindings: phy: phy-rockchip-dphy-rx0: move rockchip dphy rx0 bindings out of staging
  media: staging: dt-bindings: phy-rockchip-dphy-rx0: remove non-used reg property
  media: atomisp: unify the version for isp2401 a0 and b0 versions
  media: atomisp: update TODO with the current data
  media: atomisp: adjust some code at sh_css that could be broken
  media: atomisp: don't produce errs for ignored IRQs
  media: atomisp: print IRQ when debugging
  media: atomisp: isp_mmu: don't use kmem_cache
  media: atomisp: add a notice about possible leak resources
  media: atomisp: disable the dynamic and reserved pools
  media: atomisp: turn on camera before setting it
  ...

mailmap: change email for Ricardo Ribalda

2020-05-26T00:59:59+00:00

Modify  emails to ribalda@kernel.org and unify my surname in all the
files.

Signed-off-by: Ricardo Ribalda 
Link: https://lore.kernel.org/r/20200430135224.362700-1-ricardo@ribalda.com
Signed-off-by: Jonathan Corbet

media: s5k5baf: Replace zero-length array with flexible-array

2020-05-25T13:44:00+00:00

The current codebase makes use of the zero-length array language
extension to the C90 standard, but the preferred mechanism to declare
variable-length types such as these ones is a flexible array member[1][2],
introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by
this change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]

sizeof(flexible-array-member) triggers a warning because flexible array
members have incomplete type[1]. There are some instances of code in
which the sizeof operator is being incorrectly/erroneously applied to
zero-length arrays and the result is zero. Such instances may be hiding
some bugs. So, this work (flexible-array member conversions) will also
help to get completely rid of those sorts of issues.

This issue was found with the help of Coccinelle.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva 
Signed-off-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab

media: i2c: imx219: Drop and

2020-05-25T13:43:36+00:00

The IMX219 camera driver is not a clock provider, but merely a clock
consumer, and thus does not need to include  and
.

Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab

media: i2c: Add ov2740 image sensor driver

2020-05-25T13:43:14+00:00

OminiVision ov2740 is a 2 megapixels RAW RGB image sensor which can
deliver 1920x1080@60fps frames. This driver add the support of
vertical blanking, exposure, test pattern, digital and analog gain
control for sensor.

Signed-off-by: Bingbu Cao 
Signed-off-by: Shawn Tu 
Signed-off-by: Qiu, Tianshu 
Signed-off-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab

media: ov8856: Implement sensor module revision identification

2020-05-25T13:41:46+00:00

Query the sensor for its module revision, and compare it
to known revisions.

Currently 2A and 1B revision indentification is supported.

[Sakari Ailus: Wrap a line over 80, alignment, use %u for printing u32]

Signed-off-by: Robert Foss 
Signed-off-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab

media: ov8856: Add devicetree support

2020-05-25T13:41:01+00:00

Add match table, enable ov8856_probe() to support
both ACPI and DT modes.

ACPI and DT modes are primarily distinguished from
by checking for ACPI mode and by having resource like
be NULL.

Signed-off-by: Robert Foss 
Signed-off-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab

media: i2c: imx219: Parse and register properties

2020-05-18T13:37:16+00:00

Parse device properties and register controls for them using the newly
introduced helpers.

Signed-off-by: Jacopo Mondi 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: i2c: ov13858: Parse and register properties

2020-05-18T13:36:58+00:00

Parse device properties and register controls for them using the newly
introduced helpers.

Signed-off-by: Jacopo Mondi 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: i2c: ov5670: Parse and register properties

2020-05-18T13:36:37+00:00

Parse device properties and register controls for them using the newly
introduced helpers.

Signed-off-by: Jacopo Mondi 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab