This adds encoder part of the driver plus encoder controls.
Signed-off-by: NStanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This consists of video decoder implementation plus decoder
controls.
Signed-off-by: NStanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

* core.c has implemented the platform driver methods, file
operations and v4l2 registration.

 * helpers.c has implemented common helper functions for:
   - buffer management

   - vb2_ops and functions for format propagation,

   - functions for allocating and freeing buffers for
   internal usage. The buffer parameters describing internal
   buffers depends on current format, resolution and codec.

   - functions for calculation of current load of the
   hardware. Depending on the count of instances and
   resolutions it selects the best clock rate for the video
   core.

 * firmware loader
Signed-off-by: NStanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add an entry for Venus video encoder/decoder accelerator driver.
Signed-off-by: NStanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add binding document for Venus video encoder/decoder driver

Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NStanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

this add functions for:
  - remove buffers from src/dst queue by index
  - remove exact buffer from src/dst queue

also extends m2m API to iterate over a list of src/dst buffers
in safely and non-safely manner.
Signed-off-by: NStanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Linux 4.12-rc6

* tag 'v4.12-rc6': (813 commits)
  Linux 4.12-rc6
  mm: larger stack guard gap, between vmas
  virtio_balloon: disable VIOMMU support
  mm: correct the comment when reclaimed pages exceed the scanned pages
  userfaultfd: shmem: handle coredumping in handle_userfault()
  mm: numa: avoid waiting on freed migrated pages
  swap: cond_resched in swap_cgroup_prepare()
  mm/memory-failure.c: use compound_head() flags for huge pages
  perf unwind: Report module before querying isactivation in dwfl unwind
  fs: pass on flags in compat_writev
  objtool: Add fortify_panic as __noreturn function
  powerpc/debug: Add missing warn flag to WARN_ON's non-builtin path
  USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks
  drm: mxsfb_crtc: Reset the eLCDIF controller
  drm/mgag200: Fix to always set HiPri for G200e4 V2
  i2c: ismt: fix wrong device address when unmap the data buffer
  i2c: rcar: use correct length when unmapping DMA
  powerpc/xive: Fix offset for store EOI MMIOs
  drm/tegra: Correct idr_alloc() minimum id
  drm/tegra: Fix lockup on a use of staging API
  ...
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

As reported by gcc:

drivers/media/i2c/ov13858.c:953:20: warning: duplicate const
drivers/media/i2c/ov13858.c:953:14: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
 static const const s64 link_freq_menu_items[OV13858_NUM_OF_LINK_FREQS] = {
              ^~~~~
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

There is no need to split long string literals.
Join them back.

No functional change intended.
Signed-off-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

DW9714 is a 10 bit DAC, designed for linear
control of voice coil motor.

This driver creates a V4L2 subdevice and
provides control to set the desired focus.

[Sakari Ailus: Add MAINTAINERS entry.]
Signed-off-by: NRajmohan Mani <rajmohan.mani@intel.com>
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This patch adds driver for Omnivision's ov13858
sensor, the driver supports following features:

- manual exposure/gain(analog and digital) control support
- two link frequencies
- VBLANK/HBLANK support
- test pattern support
- media controller support
- runtime pm support
- supported resolutions
  + 4224x3136 at 30FPS
  + 2112x1568 at 30FPS(default) and 60FPS
  + 2112x1188 at 30FPS(default) and 60FPS
  + 1056x784 at 30FPS(default) and 60FPS

[Sakari Ailus: use V4L2_CID_DIGITAL_GAIN instead, add MAINTAINERS entry.]
Signed-off-by: NHyungwoo Yang <hyungwoo.yang@intel.com>
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Elaborate the differences between V4L2_CID_GAIN and gain-type specific
V4L2_CID_DIGITAL_GAIN and V4L2_CID_ANALOGUE_GAIN.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add V4L2_CID_DIGITAL_GAIN to control explicitly digital gain.

We already have analogue gain control which the digital gain control
complements. Typically higher quality images are obtained using analogue
gain only as the digital gain does not add information to the image
(rather it may remove it).
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add maintainer entry for the imx-media driver.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Acked-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Calling S_STREAM OFF multiple times on a video device is valid, although
dubious, practice. Instead of warning about it and setting stream count
lower than zero, just ignore the subsequent S_STREAM calls and correct
the stream count to zero.
Signed-off-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This patch adds a call to imx_media_fill_default_mbus_fields() in the
*_try_fmt() functions at the sink pads, to set empty field order and
colorimetry parameters.

If the field order is set to ANY, choose the currently set field order
at the sink pad. If the colorspace is set to DEFAULT, choose the
current colorspace at the sink pad.  If any of xfer_func, ycbcr_enc
or quantization are set to DEFAULT, either choose the current sink pad
setting, or the default setting for the new colorspace, if non-DEFAULT
colorspace was given.

If a format is destined to be routed through the Image Converter,
fixed quantization and Y`CbCr encoding must be set.

Colorimetry is also propagated from sink to source pads anywhere
this has not already been done.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add support for enumerating frame sizes and frame intervals from the
first subdev via the V4L2 interfaces.
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add frame size and frame interval enumeration to CSI.

CSI can downscale the image independently horizontally and vertically by a
factor of two, which enumerates to four different frame sizes at the
output pads. The input pad supports a range of frame sizes.

CSI can also drop frames, resulting in frame rate reduction, so
enumerate the resulting possible output frame rates.
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Move the crop rectangle to the sink pad and add a sink compose rectangle
to configure scaling. Also propagate rectangles from sink pad to crop
rectangle, to compose rectangle, and to the source pads both in ACTIVE
and TRY variants of set_fmt/selection, and initialize the default crop
and compose rectangles.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The CSI can skip any out of up to 6 input frames, allowing to reduce the
frame rate at the output pads by small fractions.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The IDMAC supports burst sizes of up to 32 pixels for interleaved YUV
formats and up to 64 pixels for planar YUV formats.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Bayer formats must be treated as generic data and passthrough mode must
be used.  Add the correct setup for these formats.

- added check to csi_link_validate() to verify that destination is
  IDMAC output pad when passthrough conditions exist: bayer formats
  and 16-bit parallel buses.
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Adds MIPI CSI-2 Receiver subdev driver. This subdev is required
for sensors with a MIPI CSI2 interface.

- Switch from the v4l2_of_ APIs to the v4l2_fwnode_ APIs.
- Add the function csi2ipu_gasket_init() to initialize the gasket at
  s_power(ON). The gasket needs to be programmed with the correct color
  component ordering to handle UYVY vs. YUYV ordered mbus formats from
  sensors. Note that the description of the CSI2IPU_GASKET register in
  the i.MX6 reference manual is wrong w.r.t bit 2 (the manual refers to
  this register as CSI2_SW_RST): setting bit 2 selects YUYV order, not UYVY.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Suggested-by: NMarek Vasut <marex@denx.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This is a set of three media entity subdevice drivers for the i.MX
Image Converter:

- Pre-process Router: Takes input frames from CSI0, CSI1, or VDIC.
  Two output pads enable either or both of the preprocess tasks
  below. If the input is from one of the CSIs, both proprocess task
  links can be enabled to process frames from that CSI simultaneously.
  If the input is the VDIC, only the Pre-processing Viewfinder task
  link can be enabled.

- Pre-processing Encode task: video frames are routed directly from
  the CSI and can be scaled, color-space converted, and rotated.
  Scaled output is limited to 1024x1024 resolution. Output frames
  are routed to the prpenc capture device.

- Pre-processing Viewfinder task: this task can perform the same
  conversions as the pre-process encode task, but in addition can
  be used for hardware motion compensated deinterlacing. Frames can
  come either directly from the CSI or from the VDIC. Scaled output
  is limited to 1024x1024 resolution. Output frames are routed to
  the prpvf capture device.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This is a media entity subdevice driver for the i.MX Video De-Interlacing
or Combining Block. So far this entity does not implement the Combining
function but only motion compensated deinterlacing. Video frames are
received from the CSI and are routed to the IC PRPVF entity.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This is a media entity subdevice for the i.MX Camera
Sensor Interface module.

- Added support for negotiation of frame intervals.
- Fixed cropping rectangle negotiation at input and output pads.
- Added support for /2 downscaling, if the output pad dimension(s)
  are 1/2 the crop dimension(s) at csi_setup() time.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
[hans.verkuil@cisco.com: add linux/pinctrl/consumer.h include]
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This is the capture device interface driver that provides the v4l2
user interface. Frames can be received from various sources:

- directly from CSI for capturing unconverted images directly from
  camera sensors.

- from the IC pre-process encode task.

- from the IC pre-process viewfinder task.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add a TODO file.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add the core media driver for i.MX SOC.

Switch from the v4l2_of_ APIs to the v4l2_fwnode_ APIs.
Add the bayer formats to imx-media's list of supported pixel and bus
formats.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NRussell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This adds a header file for use by userspace programs wanting to interact
with the i.MX media driver. It defines custom events and v4l2 controls for
the i.MX v4l2 subdevices.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add bindings documentation for the i.MX media driver.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add maintainer entry for the OV5640 V4L2 sensor driver.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This driver is based on ov5640_mipi.c from Freescale imx_3.10.17_1.0.0_beta
branch, modified heavily to bring forward to latest interfaces and code
cleanup.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add device tree binding documentation for the OV5640 camera sensor.
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add maintainer entry for the video multiplexer v4l2 subdevice driver that
will control video bus multiplexers via the multiplexer framework.
Signed-off-by: NPhilip Zabel <p.zabel@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This driver can handle SoC internal and external video bus multiplexers,
controlled by mux controllers provided by the mux controller framework,
such as MMIO register bitfields or GPIOs. The subdevice passes through
the mbus configuration of the active input to the output side.

Since the mux framework is not yet merged, this driver contains
temporary mmio-mux support to work without the framework. The driver
should be converted to use the multiplexer API once the "mux: minimal
mux subsystem" and "mux: mmio-based syscon mux controller" patches are
merged.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: NPavel Machek <pavel@ucw.cz>
[hans.verkuil@cisco.com: add 'select REGMAP' to Kconfig]
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add two new media entity function definitions for video multiplexers
and video interface bridges.

- renamed MEDIA_ENT_F_MUX to MEDIA_ENT_F_VID_MUX
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add bindings documentation for the video multiplexer device.
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NSteve Longerbeam <steve_longerbeam@mentor.com>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: NSebastian Reichel <sebastian.reichel@collabora.co.uk>
Acked-by: NRob Herring <robh@kernel.org>
Acked-by: NPavel Machek <pavel@ucw.cz>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

load is an unsigned integer. So, it is always bigger or equal
to zero, as reported by gcc:

	drivers/media/i2c/max2175.c: In function 'max2175_refout_load_to_bits':
	drivers/media/i2c/max2175.c:1272:11: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]
	  if (load >= 0 && load <= 40)
	           ^~
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add maintainter entry for the R-Car DRIF and MAX2175 drivers.
Signed-off-by: NRamesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Signed-off-by: NHans Verkuil <hansverk@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>