Changes in Kconfig

2a2fffb4 - media: remove the old videobuf framework

Sun, 13 Aug 2023 08:22:54 +0000

media: remove the old videobuf frameworkThe last driver that still used this old framework has been convertedto the videobuf2 framework. So it is now time to delete the old videobufcode.Signed-off-by: Hans Verkuil Reviewed-by: Hans de Goede List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

613cbb91 - media: Add MIPI CCI register access helper functions

Tue, 27 Jun 2023 12:51:04 +0000

media: Add MIPI CCI register access helper functionsThe CSI2 specification specifies a standard method to access camera sensorregisters called "Camera Control Interface (CCI)".This uses either 8 or 16 bit (big-endian wire order) register addressesand supports 8, 16, 24 or 32 bit (big-endian wire order) register widths.Currently a lot of Linux camera sensor drivers all have their own customhelpers for this, often copy and pasted from other drivers.Add a set of generic helpers for this so that all sensor drivers canswitch to a single common implementation.These helpers take an extra optional "int *err" function parameter,this can be used to chain a bunch of register accesses together withonly a single error check at the end, rather than needing to errorcheck each individual register access. The first failing call willset the contents of err to a non 0 value and all other calls willthen become no-ops.Link: https://lore.kernel.org/linux-media/59aefa7f-7bf9-6736-6040-39551329cd0a@redhat.com/Reviewed-by: Andy Shevchenko Tested-by: Tommaso Merciai Reviewed-by: Tommaso Merciai Signed-off-by: Hans de Goede Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

817819b2 - media: Replace dependency on VIDEO_V4L2_SUBDEV_API with select

Sat, 18 Jun 2022 18:54:19 +0000

media: Replace dependency on VIDEO_V4L2_SUBDEV_API with selectThe VIDEO_V4L2_SUBDEV_API Kconfig symbol is mostly selectedautomatically, with a a handful of drivers still using it as adependency. Fix them to use selection, and drop the symbol title text tonot expose it for manual selection.Signed-off-by: Laurent Pinchart Reviewed-by: Ezequiel Garcia Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

9958d30f - media: Kconfig: cleanup VIDEO_DEV dependencies

Sun, 13 Mar 2022 06:25:46 +0000

media: Kconfig: cleanup VIDEO_DEV dependenciesmedia Kconfig has two entries associated to V4L API:VIDEO_DEV and VIDEO_V4L2.On Kernel 2.6.x, there were two V4L APIs, each one with its own flag.VIDEO_DEV were meant to: 1) enable Video4Linux and make its Kconfig options to appear; 2) it makes the Kernel build the V4L core.while VIDEO_V4L2 where used to distinguish between drivers thatimplement the newer API and drivers that implemented the former one.With time, such meaning changed, specially after the removal ofall V4L version 1 drivers.At the current implementation, VIDEO_DEV only does (1): it enablesthe media options related to V4L, that now has: menu "Video4Linux options" visible if VIDEO_DEV source "drivers/media/v4l2-core/Kconfig" endmenubut it doesn't affect anymore the V4L core drivers.The rationale is that the V4L2 core has a "soft" dependencyat the I2C bus, and now requires to select a number of otherKconfig options: config VIDEO_V4L2 tristate depends on (I2C || I2C=n) && VIDEO_DEV select RATIONAL select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE default (I2C || I2C=n) && VIDEO_DEVIn the past, merging them would be tricky, but it seems that it is nowpossible to merge those symbols, in order to simplify V4L dependencies.Let's keep VIDEO_DEV, as this one is used on some make *defconfigconfigurations.Suggested-by: Laurent Pinchart Reviewed-by: Laurent Pinchart Reviewed-by: Jacopo Mondi Reviewed-by: Neil Armstrong # for meson-vdec & meson-ge2dAcked-by: Andrzej Pietrasiewicz Acked-by: Łukasz Stelmach Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

3e3b1fb0 - media: Add VP9 v4l2 library

Tue, 16 Nov 2021 14:38:36 +0000

media: Add VP9 v4l2 libraryProvide code common to vp9 drivers in one central location.Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

ff3cc65c - media: v4l: async, fwnode: Improve module organisation

Fri, 05 Mar 2021 17:38:39 +0000

media: v4l: async, fwnode: Improve module organisationThe V4L2 async framework is generally used with the V4L2 fwnode, whichalso depends on the former. There are a few exceptions but they arerelatively few.At the same time there is a vast number of systems that need videodevmodule, but have no use for v4l2-async that's now part of videodev.In order to improve, split the v4l2-async into its own module. SelectingV4L2_FWNODE also selects V4L2_ASYNC.This also moves the initialisation of the debufs entries for async subdevsto loading of the v4l2-async module. The directory is named as"v4l2-async".Signed-off-by: Sakari Ailus Reviewed-by: Ezequiel Garcia Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

624922a2 - media: v4l2-core: Add helpers to build the H264 P/B0/B1 reflists

Fri, 03 Apr 2020 22:13:41 +0000

media: v4l2-core: Add helpers to build the H264 P/B0/B1 reflistsBuilding those list is a standard procedure described in section'8.2.4 Decoding process for reference picture lists construction' ofthe H264 specification.We already have 2 drivers needing the same logic (hantro and rkvdec) andI suspect we will soon have more.Let's provide generic helpers to create those lists.Signed-off-by: Boris Brezillon Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

50733b5b - media: add v4l2 JPEG helpers

Wed, 18 Mar 2020 18:35:32 +0000

media: add v4l2 JPEG helpersAdd helpers for JPEG header parsing. They allow both scanning for markersegment positions and later parsing the segments individually, asrequired by s5p-jpeg, as well as parsing all headers in one go, asrequired by coda-vpu. The frame header is always parsed, as basicallyall decoders are interested in width, height, and number of components.For convenience, the JPEG chroma subsampling factors are decoded into av4l2_jpeg_chroma_subsampling enum.Only baseline and extended sequential DCT encoded JPEGs with 8-bit or12-bit precision with up to four components are supported.Signed-off-by: Philipp Zabel Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

8164ab87 - media: Kconfig: move V4L2 subdev API to v4l2-core/Kconfig

Tue, 24 Mar 2020 12:50:33 +0000

media: Kconfig: move V4L2 subdev API to v4l2-core/KconfigThis option is part of V4L2 API extra functionality set.Move it to be at the v4l2-core/Kconfig, where it belongs,cleaning the main Kconfig file.Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

f11175da - media: pci: move VIDEO_PCI_SKELETON to a different Kconfig

Tue, 24 Mar 2020 09:05:18 +0000

media: pci: move VIDEO_PCI_SKELETON to a different KconfigThe V4L2 PCI skeleton is not part of the V4L2 core. Move itto appear together with the other PCI drivers, at the end,as this is something that normal users don't even need tobother.Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

02283b98 - media: v4l2-core: move i2c helpers out of v4l2-common.c

Thu, 15 Aug 2019 16:48:03 +0000

media: v4l2-core: move i2c helpers out of v4l2-common.cSeparate the i2c helpers to v4l2-i2c.c, in order to get ridof the ifdefery. No functional changes intended, this isjust a cosmetic change to organize the code better.Given I2C is a tristate symbol, a hidden boolean symbolis introduced, to make the conditional build easier.Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

2f39cce9 - media: remove redundant 'default n' from Kconfig-s

Fri, 12 Apr 2019 10:27:40 +0000

media: remove redundant 'default n' from Kconfig-s'default n' is the default value for any bool or tristate Kconfigsetting so there is no need to write it explicitly.Also since commit f467c5640c29 ("kconfig: only write '# CONFIG_FOOis not set' for visible symbols") the Kconfig behavior is the sameregardless of 'default n' being present or not: ... One side effect of (and the main motivation for) this change is making the following two definitions behave exactly the same: config FOO bool config FOO bool default n With this change, neither of these will generate a '# CONFIG_FOO is not set' line (assuming FOO isn't selected/implied). That might make it clearer to people that a bare 'default n' is redundant. ...Signed-off-by: Bartlomiej Zolnierkiewicz Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

b60a5b8d - media: Kconfig files: use the right help coding style

Wed, 20 Mar 2019 10:39:44 +0000

media: Kconfig files: use the right help coding styleCheckpatch wants to use 'help' instead of '---help---': WARNING: prefer 'help' over '---help---' for new help textsLet's change it globally at the media subsystem, as otherwise peoplewould keep using the old way.Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

ba08e61a - media: v4l2-pci-skeleton: depend on CONFIG_SAMPLES

Mon, 26 Nov 2018 18:01:23 +0000

media: v4l2-pci-skeleton: depend on CONFIG_SAMPLESCommit 0185f8501762 ("[media] samples: v4l: from Documentation tosamples directory") moved the v4l2-pci-skeleton driver to the samplesdirectory. The samples are only be built, if CONFIG_SAMPLES is enabled.Therefore, VIDEO_PCI_SKELETON is not enough to build thev4l2-pci-skeleton driver, but SAMPLES needs to be enabled, too. LetVIDEO_PCI_SKELETON depend on SAMPLES.Signed-off-by: Michael Tretter Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

4cff79e9 - media: Remove depends on HAS_DMA in case of platform dependency

Thu, 17 May 2018 17:18:12 +0000

media: Remove depends on HAS_DMA in case of platform dependencyRemove dependencies on HAS_DMA where a Kconfig symbol depends on anothersymbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".In most cases this other symbol is an architecture or platform specificsymbol, or PCI.Generic symbols and drivers without platform dependencies keep theirdependencies on HAS_DMA, to prevent compiling subsystems or drivers thatcannot work anyway.This simplifies the dependencies, and allows to improve compile-testing.Note: - The various VIDEOBUF*DMA* symbols had to loose their dependencies on HAS_DMA, as they are selected by several individual drivers.Signed-off-by: Geert Uytterhoeven Reviewed-by: Mark Brown Acked-by: Robin Murphy Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

adafae62 - media: v4l2-core: get rid of videobuf-dvb

Fri, 09 Mar 2018 08:30:48 +0000

media: v4l2-core: get rid of videobuf-dvbVideobuf has been replaced by videobuf2. Now, no drivers usethe videobuf-dvb helper module anymore. So, get rid of it.Signed-off-by: Mauro Carvalho Chehab Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

80dfd71c - media: videobuf2: Add VIDEOBUF2_V4L2 Kconfig option for VB2 V4L2 part

Fri, 23 Feb 2018 08:29:46 +0000

media: videobuf2: Add VIDEOBUF2_V4L2 Kconfig option for VB2 V4L2 partVideobuf2 is now separate from V4L2 and can be now built without it, atleast in principle --- enabling videobuf2 in kernel configuration attemptsto compile videobuf2-v4l2.c but that will fail if CONFIG_VIDEO_V4L2 isn'tenabled.Solve this by adding a separate Kconfig option for videobuf2-v4l2 and makeit a separate module as well. This means that drivers now need to chooseboth the appropriate videobuf2 memory type(VIDEOBUF2_{VMALLOC,DMA_CONTIG,DMA_SG}) and VIDEOBUF2_V4L2 if they needboth.Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

4a3fad70 - media: fix usage of whitespaces and on indentation

Thu, 04 Jan 2018 11:47:28 +0000

media: fix usage of whitespaces and on indentationOn several places, whitespaces are being used for indentation,or even at the end of the line.Fix them.Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig

03fbdb2f - media: move videobuf2 to drivers/media/common

Thu, 21 Dec 2017 13:29:39 +0000

media: move videobuf2 to drivers/media/commonNow that VB2 is used by both V4L2 and DVB core, move it tothe common part of the subsystem.Signed-off-by: Mauro Carvalho Chehab List of files: /linux-6.15/drivers/media/v4l2-core/Kconfig