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Shuah Khan 6e1d824e7a media: Media Device Allocator API 
Media Device Allocator API to allows multiple drivers share a media device.
This API solves a very common use-case for media devices where one physical
device (an USB stick) provides both audio and video. When such media device
exposes a standard USB Audio class, a proprietary Video class, two or more
independent drivers will share a single physical USB bridge. In such cases,
it is necessary to coordinate access to the shared resource.

Using this API, drivers can allocate a media device with the shared struct
device as the key. Once the media device is allocated by a driver, other
drivers can get a reference to it. The media device is released when all
the references are released.

Signed-off-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-04-22 11:18:26 -04:00
..
ABI
Merge tag 'devdax-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
2019-03-16 13:05:32 -07:00
accelerators
ocxl: Document new OCXL IOCTLs
2018-06-03 20:40:33 +10:00
accounting
psi: cgroup support
2018-10-26 16:26:32 -07:00
acpi
ACPI: Documentation: Fix path for acpidbg tool
2019-03-07 11:28:33 +01:00
admin-guide
Merge tag 'for-5.1/block-post-20190315' of git://git.kernel.dk/linux-block
2019-03-16 12:36:39 -07:00
aoe
…
arm
ARM: 8833/1: Ensure that NEON code always compiles with Clang
2019-02-12 15:20:09 +00:00
arm64
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
2019-03-10 10:17:23 -07:00
auxdisplay
Doc: misc-devices: move lcd-panel-cgram.txt to auxdisplay/
2018-04-12 16:08:02 +02:00
backlight
…
block
block: document usage of bio iterator helpers
2019-02-15 08:40:12 -07:00
blockdev
zram: idle writeback fixes and cleanup
2019-01-08 17:15:10 -08:00
bpf
docs/bpf: minor casing/punctuation fixes
2019-03-02 00:40:04 +01:00
bus-devices
…
cdrom
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
cgroup-v1
Merge tag 'docs-5.1' of git://git.lwn.net/linux
2019-03-09 09:56:17 -08:00
cma
…
connector
samples: connector: from Documentation to samples directory
2016-04-28 07:47:35 -06:00
console
Documentation: corrections to console/console.txt
2018-08-10 16:09:40 -06:00
core-api
Merge branch 'akpm' (patches from Andrew)
2019-03-12 10:39:53 -07:00
cpu-freq
Documentation: cpu-freq: Frequencies aren't always sorted
2018-11-07 13:29:04 +01:00
crypto
crypto: skcipher - remove remnants of internal IV generators
2018-12-23 11:52:45 +08:00
dev-tools
Documentation/dev-tools: Use gcc version number instead svn revision number
2019-01-14 17:25:41 -07:00
device-mapper
dm cache: add support for discard passdown to the origin device
2019-03-05 14:53:52 -05:00
devicetree
media: dt-bindings: media: Renesas R-Car IMR bindings
2019-04-22 11:01:27 -04:00
doc-guide
docs: kernel-doc: typo "if ... if" -> "if ... is"
2019-02-17 15:38:47 -07:00
driver-api
Merge tag 'dmaengine-5.1-rc1' of git://git.infradead.org/users/vkoul/slave-dma
2019-03-14 09:11:54 -07:00
driver-model
Merge branches 'clk-optional', 'clk-devm-clkdev-register', 'clk-allwinner', 'clk-meson' and 'clk-renesas' into clk-next
2019-03-08 10:27:21 -08:00
early-userspace
Correct gen_init_cpio tool's documentation
2018-11-25 12:25:53 -07:00
EDID
Docs/EDID: Calculate CRC while building the code
2018-11-06 07:36:22 -07:00
extcon
extcon: Remove porting compatibility of swich class
2017-04-06 10:55:24 +09:00
fault-injection
doc: fault-injection: fix macro name in example
2019-01-07 15:36:11 -07:00
fb
fbdev: fbmem: convert CONFIG_FB_LOGO_CENTER into a cmd line option
2019-01-16 17:42:35 +01:00
features
Documentation/features: Add csky kernel features
2019-01-07 22:22:16 +08:00
filesystems
Merge tag '5.1-rc-smb3' of git://git.samba.org/sfrench/cifs-2.6
2019-03-15 18:52:12 -07:00
firmware_class
firmware: revamp firmware documentation
2017-01-11 09:42:59 +01:00
fmc
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
fpga
docs: fpga: add a document for FPGA Device Feature List (DFL) Framework Overview
2018-07-15 13:55:44 +02:00
gpio
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
gpu
Merge drm/drm-next into drm-misc-next
2019-02-11 10:35:35 +01:00
hid
HID: doc: fix wrong data structure reference for UHID_OUTPUT
2018-12-18 14:55:22 +01:00
hwmon
Merge tag 'docs-5.1' of git://git.lwn.net/linux
2019-03-09 09:56:17 -08:00
i2c
i2c: gpio: fault-injector: add 'inject_panic' injector
2019-02-23 10:34:08 +01:00
ia64
ia64: doc: tweak whitespace for 'console=' parameter
2018-03-05 14:41:38 -08:00
ide
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
iio
iio: adc: New driver for Cirrus Logic EP93xx ADC
2017-07-25 19:56:23 +01:00
infiniband
Documentation/infiniband: update from locked to pinned_vm
2019-02-07 12:56:23 -07:00
input
doc: Change LXR references to elixir.bootlin.com
2019-02-01 16:05:03 -07:00
interconnect
interconnect: Add generic on-chip interconnect API
2019-01-22 13:37:25 +01:00
ioctl
seccomp: add a return code to trap to userspace
2018-12-11 16:28:41 -08:00
isdn
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
kbuild
kbuild: force all architectures except um to include mandatory-y
2019-03-17 12:56:32 +09:00
kdump
kdump: Document kernel data exported in the vmcoreinfo note
2019-01-15 11:05:28 +01:00
kernel-hacking
doc:it_IT: translation for kernel-hacking
2018-07-26 16:21:09 -06:00
laptops
Documentation: fix lg-laptop.rst warnings
2019-02-11 08:27:47 -07:00
leds
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
lightnvm
lightnvm: physical block device (pblk) target
2017-04-16 10:06:33 -06:00
livepatch
livepatch: Remove signal sysfs attribute
2019-01-16 22:09:33 +01:00
locking
Documentation/locking/lockdep: Drop last two chars of sample states
2019-03-04 12:55:18 -07:00
m68k
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
maintainer
docs: Fix more broken references
2018-06-15 18:11:26 -03:00
md
raid5-ppl: PPL support for disks with write-back cache enabled
2018-01-15 14:29:42 -08:00
media
media: Media Device Allocator API
2019-04-22 11:18:26 -04:00
memory-devices
…
mic
samples: move mic/mpssd example code from Documentation
2016-09-20 12:38:48 -06:00
mips
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
misc-devices
Documentation: add ibmvmc to toctree(index) and fix warnings
2019-01-14 08:37:17 -07:00
mmc
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
mtd
Documentation: mtd: remove stale pxa3xx NAND controller documentation
2018-09-04 23:37:38 +02:00
namespaces
…
netlabel
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
networking
Merge tag 'docs-5.1' of git://git.lwn.net/linux
2019-03-09 09:56:17 -08:00
nfc
…
nios2
…
nvdimm
libnvdimm/security: Add documentation for nvdimm security support
2018-12-21 12:44:41 -08:00
nvmem
Documentation: nvmem: document cell tables and lookup entries
2018-09-28 15:14:54 +02:00
openrisc
Documentation: openrisc: Updates to README
2017-10-30 21:37:53 +09:00
parisc
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
PCI
Merge tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
2018-10-25 06:50:48 -07:00
pcmcia
pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function
2018-08-18 12:30:42 -07:00
perf
Documentation: perf: Add documentation for ThunderX2 PMU uncore driver
2018-12-06 12:29:47 +00:00
phy
…
platform
…
power
PM/EM: Document the Energy Model framework
2019-01-27 12:29:37 +01:00
powerpc
powerpc/fadump: Reservationless firmware assisted dump
2018-12-21 11:32:49 +11:00
pps
drivers/pps: aesthetic tweaks to PPS-related content
2017-09-08 18:26:51 -07:00
process
Merge tag 'docs-5.1' of git://git.lwn.net/linux
2019-03-09 09:56:17 -08:00
pti
…
ptp
ptp: Fix documentation to match code.
2018-03-26 12:13:21 -04:00
rapidio
Documentation: rapidio: move sysfs interface to ABI
2018-02-23 08:25:45 -07:00
RCU
Merge tag 'docs-5.1' of git://git.lwn.net/linux
2019-03-09 09:56:17 -08:00
riscv
perf: riscv: Add Document for Future Porting Guide
2018-06-04 14:02:11 -07:00
s390
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
scheduler
sched/doc: Document Energy Aware Scheduling
2019-01-27 12:29:37 +01:00
scsi
scsi: ufs-bsg: Allow reading descriptors
2019-02-27 09:00:02 -05:00
security
doc: security: Add kern-doc for lsm_hooks.h
2019-02-22 08:54:09 -07:00
serial
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
sh
sh: remove board_time_init() callback
2018-12-18 16:13:04 +01:00
sound
Merge tag 'asoc-v5.1-2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
2019-02-28 13:30:55 +01:00
sparc
sparc64: Add support for ADI (Application Data Integrity)
2018-03-18 07:38:48 -07:00
sphinx
Documentation/sphinx: allow "functions" with no parameters
2018-06-30 07:52:42 -06:00
sphinx-static
docs: improve readability for people with poorer eyesight
2018-10-07 09:16:50 -06:00
spi
pxa2xx: replace spi_master with spi_controller
2019-01-23 10:59:56 +00:00
sysctl
Merge tag 'docs-5.1' of git://git.lwn.net/linux
2019-03-09 09:56:17 -08:00
target
scsi: target/core: Remove the write_pending_status() callback function
2019-02-04 21:23:59 -05:00
thermal
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
timers
Docs: Correct /proc/stat path
2019-02-22 08:50:17 -07:00
trace
doc: trace: Fix documentation for uprobe_profile
2019-02-21 10:28:55 -05:00
translations
Merge tag 'docs-5.1' of git://git.lwn.net/linux
2019-03-09 09:56:17 -08:00
usb
usb: core: add option of only authorizing internal devices
2019-02-22 09:27:55 +01:00
userspace-api
x86/speculation: Add PR_SPEC_DISABLE_NOEXEC
2019-01-29 22:11:49 +01:00
virtual
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2019-03-15 15:00:28 -07:00
vm
docs: Use underscore not hyphen in label
2019-02-01 16:04:01 -07:00
w1
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00
watchdog
Documentation/watchdog: Add documentation mlx-wdt driver
2019-03-02 15:28:20 +01:00
wimax
…
x86
x86/resctrl: Avoid confusion over the new X86_RESCTRL config
2019-02-02 10:34:52 +01:00
xilinx
Documentation: xilinx: Add documentation for eemi APIs
2018-10-09 13:26:05 +02:00
xtensa
xtensa: document boot parameter passing
2019-02-03 18:06:19 -08:00
.gitignore
Add .pyc files to .gitignore
2016-06-30 13:07:33 -06:00
atomic_bitops.txt
locking/atomic/bitops: Document and clarify ordering semantics for failed test_and_{}_bit()
2018-02-13 14:55:53 +01:00
atomic_t.txt
Documentation/locking/atomic: Finish the document...
2017-08-25 11:06:33 +02:00
bt8xxgpio.txt
bt8xxgpio.txt: standardize document format
2017-07-14 13:51:27 -06:00
btmrvl.txt
btmrvl.txt: standardize document format
2017-07-14 13:51:27 -06:00
bus-virt-phys-mapping.txt
bus-virt-phys-mapping.txt: standardize document format
2017-07-14 13:51:28 -06:00
Changes
docs: add back 'Documentation/Changes' file (as symlink)
2016-12-14 16:30:12 -08:00
clearing-warn-once.txt
kernel debug: support resetting WARN*_ONCE
2017-11-17 16:10:00 -08:00
CodingStyle
doc: re-add CodingStyle and SubmittingPatches
2016-10-24 08:12:35 -02:00
conf.py
Merge tag 'docs-4.20' of git://git.lwn.net/linux
2018-10-24 18:01:11 +01:00
cpu-load.txt
cpu-load: standardize document format
2017-07-14 13:51:30 -06:00
cputopology.txt
cputopology.txt: standardize document format
2017-07-14 13:51:30 -06:00
crc32.txt
crc32.txt: standardize document format
2017-07-14 13:51:30 -06:00
dcdbas.txt
dcdbas.txt: standardize document format
2017-07-14 13:51:31 -06:00
debugging-modules.txt
…
debugging-via-ohci1394.txt
debugging-via-ohci1394.txt: standardize document format
2017-07-14 13:51:34 -06:00
dell_rbu.txt
Documentation: remove stale firmware API reference
2018-05-14 16:44:41 +02:00
digsig.txt
digsig.txt: standardize document format
2017-07-14 13:51:31 -06:00
DMA-API-HOWTO.txt
Documentation/DMA-API-HOWTO: update dma_mask sections
2019-02-20 07:29:47 -07:00
DMA-API.txt
Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
2019-03-10 12:47:57 -07:00
DMA-attributes.txt
DMA-attributes.txt: standardize document format
2017-07-14 13:51:33 -06:00
DMA-ISA-LPC.txt
Documentation/DMA-ISA-LPC: fix an incorrect reference
2019-02-11 08:23:07 -07:00
docutils.conf
doc-rst: add docutils config file
2016-08-14 11:52:40 -06:00
dontdiff
kernel/configs: use .incbin directive to embed config_data.gz
2019-03-07 18:32:02 -08:00
efi-stub.txt
efi_stub: update documentation on dtb= parameter
2018-09-09 14:46:44 -06:00
eisa.txt
eisa.txt: standardize document format
2017-07-14 13:51:34 -06:00
futex-requeue-pi.txt
futex-requeue-pi.txt: standardize document format
2017-07-14 13:51:35 -06:00
gcc-plugins.txt
gcc-plugins.txt: standardize document format
2017-07-14 13:51:36 -06:00
highuid.txt
highuid.txt: standardize document format
2017-07-14 13:51:36 -06:00
hw_random.txt
hw_random.txt: standardize document format
2017-07-14 13:51:37 -06:00
hwspinlock.txt
hwspinlock.txt: standardize document format
2017-07-14 13:51:37 -06:00
index.rst
Documentation: add ibmvmc to toctree(index) and fix warnings
2019-01-14 08:37:17 -07:00
intel_txt.txt
intel_txt.txt: standardize document format
2017-07-14 13:51:38 -06:00
Intel-IOMMU.txt
Intel-IOMMU.txt: standardize document format
2017-07-14 13:51:38 -06:00
io_ordering.txt
io_ordering.txt: standardize document format
2017-07-14 13:51:39 -06:00
io-mapping.txt
io-mapping.txt: standardize document format
2017-07-14 13:51:38 -06:00
iostats.txt
block: Track DISCARD statistics and output them in stat and diskstat
2018-07-18 08:44:22 -06:00
IPMI.txt
ipmi: Make IPMI panic strings always available
2017-09-27 16:03:45 -05:00
IRQ-affinity.txt
IRQ-affinity.txt: standardize document format
2017-07-14 13:51:41 -06:00
IRQ-domain.txt
irqdomain: Kill CONFIG_IRQ_DOMAIN_DEBUG
2018-01-24 12:32:58 +01:00
IRQ.txt
IRQ.txt: add a markup for its title
2017-07-14 13:51:42 -06:00
irqflags-tracing.txt
irqflags-tracing.txt: standardize document format
2017-07-14 13:51:42 -06:00
isa.txt
isa.txt: standardize document format
2017-07-14 13:51:43 -06:00
isapnp.txt
isapnp.txt: promote title level
2017-07-14 13:51:43 -06:00
kernel-per-CPU-kthreads.txt
doc: Update removal of RCU-bh/sched update machinery
2018-08-30 10:59:48 -07:00
kobject.txt
kref/kobject: Improve documentation
2018-12-06 13:57:03 +01:00
kprobes.txt
kprobes/Documentation: Fix various typos
2018-06-22 11:10:55 +02:00
kref.txt
kref.txt: standardize document format
2017-07-14 13:51:45 -06:00
ldm.txt
ldm.txt: standardize document format
2017-07-14 13:51:45 -06:00
lockup-watchdogs.txt
lockup-watchdogs.txt: standardize document format
2017-07-14 13:51:46 -06:00
logo.gif
…
logo.txt
…
lsm.txt
docs-rst: convert lsm from DocBook to ReST
2017-05-16 08:44:19 -03:00
lzo.txt
lib/lzo: separate lzo-rle from lzo
2019-03-07 18:32:03 -08:00
mailbox.txt
mailbox.txt: standardize document format
2017-07-14 13:51:47 -06:00
Makefile
kbuild: Add support for DT binding schema checks
2018-12-13 09:41:32 -06:00
memory-barriers.txt
Documentation: Use "while" instead of "whilst"
2018-11-20 09:30:43 -07:00
men-chameleon-bus.txt
men-chameleon-bus.txt: standardize document format
2017-07-14 13:57:54 -06:00
nommu-mmap.txt
Documentation: nommu-map: Fix duplicate word typo
2018-06-26 09:01:27 -06:00
ntb.txt
Merge tag 'standardize-docs' of git://git.lwn.net/linux
2017-07-15 12:58:58 -07:00
numastat.txt
numastat.txt: standardize document format
2017-07-14 13:57:56 -06:00
padata.txt
padata.txt: standardize document format
2017-07-14 13:57:56 -06:00
parport-lowlevel.txt
parport-lowlevel.txt: standardize document format
2017-07-14 13:57:57 -06:00
percpu-rw-semaphore.txt
percpu-rw-semaphore.txt: standardize document format
2017-07-14 13:57:58 -06:00
phy.txt
phy.txt: standardize document format
2017-07-14 13:57:58 -06:00
pi-futex.txt
Documentation: fix locking rt-mutex doc refs
2017-10-19 12:56:44 -06:00
pnp.txt
pnp.txt: standardize document format
2017-07-14 13:57:59 -06:00
preempt-locking.txt
Documentation: preempt-locking: Use better example
2018-10-12 11:35:47 -06:00
pwm.txt
pwm: Standardize document format
2017-07-06 08:23:30 +02:00
rbtree.txt
rbtree: cache leftmost node internally
2017-09-08 18:26:48 -07:00
remoteproc.txt
remoteproc.txt: standardize document format
2017-07-14 13:58:02 -06:00
rfkill.txt
rfkill: Fix several typos in documentation
2018-06-15 13:36:08 +02:00
robust-futex-ABI.txt
robust-futex-ABI.txt: standardize document format
2017-07-14 13:58:03 -06:00
robust-futexes.txt
robust-futexes.txt: standardize document format
2017-07-14 13:58:03 -06:00
rpmsg.txt
rpmsg.txt: standardize document format
2017-07-14 13:58:04 -06:00
rtc.txt
Documentation: rtc: move iotcl interface documentation to ABI
2018-01-12 00:20:41 +01:00
SAK.txt
SAK.txt: standardize document format
2017-07-14 13:58:04 -06:00
sgi-ioc4.txt
sgi-ioc4.txt: standardize document format
2017-07-14 13:58:05 -06:00
siphash.txt
siphash.txt: standardize document format
2017-07-14 13:58:06 -06:00
SM501.txt
SM501.txt: standardize document format
2017-07-14 13:58:06 -06:00
smsc_ece1099.txt
smsc_ece1099.txt: standardize document format
2017-07-14 13:58:07 -06:00
speculation.txt
Documentation: Document array_index_nospec
2018-01-30 21:54:28 +01:00
static-keys.txt
static_keys.txt: Fix trivial spelling mistake
2019-02-06 16:44:16 -07:00
SubmittingPatches
doc: re-add CodingStyle and SubmittingPatches
2016-10-24 08:12:35 -02:00
svga.txt
documentation/svga.txt: update outdated file
2017-11-20 10:45:50 -07:00
switchtec.txt
NTB: switchtec_ntb: Update switchtec documentation with prerequisites for NTB
2018-10-11 11:28:53 -05:00
sync_file.txt
sync_file.txt: standardize document format
2017-05-24 13:01:27 -03:00
tee.txt
tee.txt: standardize document format
2017-07-14 13:58:14 -06:00
this_cpu_ops.txt
this_cpu_ops.txt: standardize document format
2017-07-14 13:58:08 -06:00
unaligned-memory-access.txt
unaligned-memory-access.txt: standardize document format
2017-07-14 13:58:09 -06:00
vfio-mediated-device.txt
vfio/mdev: Check globally for duplicate devices
2018-06-08 10:24:27 -06:00
vfio.txt
vfio: fix documentation
2018-05-08 09:16:41 -06:00
video-output.txt
…
xillybus.txt
xillybus.txt: standardize document format
2017-07-14 13:58:11 -06:00
xz.txt
xz.txt: standardize document format
2017-07-14 13:58:11 -06:00
zorro.txt
zorro.txt: standardize document format
2017-07-14 13:58:12 -06:00