linux-stable.git/drivers/media/common, branch v5.10

media: vb2: set cache sync hints when init buffers

2020-12-02T12:00:57+00:00

We need to set ->need_cache_sync_on_prepare and
->need_cache_sync_on_finish when we initialize vb2 buffer.

Currently these flags are set/adjusted only in V4L2's
vb2_queue_or_prepare_buf(), which means that for the code
paths that don't use V4L2 vb2 will always tell videobuf2
core to skip ->prepare() and ->finish() cache syncs/flushes.
Fix this by setting cache sync hints for new buffers; except
VB2_MEMORY_DMABUF buffers, for which DMA exporter syncs
caches.

Fixes: f5f5fa73fbfb ("media: videobuf2: handle V4L2 buffer cache flags")
Reported-by: Tomasz Figa 
Signed-off-by: Sergey Senozhatsky 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

Merge tag 'v5.9-rc7' into patchwork

2020-10-04T10:19:12+00:00

Linux 5.9-rc7

* tag 'v5.9-rc7': (683 commits)
  Linux 5.9-rc7
  mm/thp: Split huge pmds/puds if they're pinned when fork()
  mm: Do early cow for pinned pages during fork() for ptes
  mm/fork: Pass new vma pointer into copy_page_range()
  mm: Introduce mm_struct.has_pinned
  mm: validate pmd after splitting
  mm: don't rely on system state to detect hot-plug operations
  mm: replace memmap_context by meminit_context
  arch/x86/lib/usercopy_64.c: fix __copy_user_flushcache() cache writeback
  lib/memregion.c: include memregion.h
  lib/string.c: implement stpcpy
  mm/migrate: correct thp migration stats
  mm/gup: fix gup_fast with dynamic page table folding
  mm: memcontrol: fix missing suffix of workingset_restore
  mm, THP, swap: fix allocating cluster for swapfile by mistake
  mm: slab: fix potential double free in ___cache_free
  Documentation/llvm: Fix clang target examples
  io_uring: ensure async buffered read-retry is setup properly
  KVM: SVM: Add a dedicated INVD intercept routine
  io_uring: don't unconditionally set plug->nowait = true
  ...

media: siano: rename a duplicated card string

2020-10-02T12:25:12+00:00

There are two different variants for Hauppauge WinTV MiniCard:

	[SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD] = {
		.name	= "Hauppauge WinTV MiniCard",
		.type	= SMS_NOVA_B0,
		.fw[DEVICE_MODE_DVBT_BDA] = SMS_FW_DVBT_HCW_55XXX,
		.default_mode = DEVICE_MODE_DVBT_BDA,
		.lna_ctrl  = 29,
		.board_cfg.foreign_lna0_ctrl = 29,
		.rf_switch = 17,
		.board_cfg.rf_switch_uhf = 17,
	},
	[SMS1XXX_BOARD_HAUPPAUGE_TIGER_MINICARD_R2] = {
		.name	= "Hauppauge WinTV MiniCard Rev 2",
		.type	= SMS_NOVA_B0,
		.fw[DEVICE_MODE_DVBT_BDA] = SMS_FW_DVBT_HCW_55XXX,
		.default_mode = DEVICE_MODE_DVBT_BDA,
		.lna_ctrl  = -1,
	},

As it can be seen, the RF part of the definitions are different.

So, better to use different names in order to distinguish
between them.

Signed-off-by: Mauro Carvalho Chehab

media: saa7146: drop double zeroing

2020-09-27T09:30:13+00:00

sg_init_table zeroes its first argument, so the allocation of that argument
doesn't have to.

the semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// 
@@
expression x,n,flags;
@@

x =
- kcalloc
+ kmalloc_array
  (n,sizeof(struct scatterlist),flags)
...
sg_init_table(x,n)
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: videobuf2: use sgtable-based scatterlist wrappers

2020-09-26T08:35:18+00:00

Use recently introduced common wrappers operating directly on the struct
sg_table objects and scatterlist page iterators to make the code a bit
more compact, robust, easier to follow and copy/paste safe.

No functional change, because the code already properly did all the
scatterlist related calls.

Signed-off-by: Marek Szyprowski 
Reviewed-by: Robin Murphy 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

Merge tag 'media/v5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2020-09-24T16:05:04+00:00

Pull media fixes from Mauro Carvalho Chehab:

 - fix a regression at the CEC adapter core

 - two uAPI patches (one revert) for changes in this development cycle

* tag 'media/v5.9-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: dt-bindings: media: imx274: Convert to json-schema
  media: media/v4l2: remove V4L2_FLAG_MEMORY_NON_CONSISTENT flag
  media: cec-adap.c: don't use flush_scheduled_work()

media: media/v4l2: remove V4L2_FLAG_MEMORY_NON_CONSISTENT flag

2020-09-14T13:28:06+00:00

The patch partially reverts some of the UAPI bits of the buffer
cache management hints. Namely, the queue consistency (memory
coherency) user-space hint because, as it turned out, the kernel
implementation of this feature was misusing DMA_ATTR_NON_CONSISTENT.

The patch reverts both kernel and user space parts: removes the
DMA consistency attr functions, rolls back changes to v4l2_requestbuffers,
v4l2_create_buffers structures and corresponding UAPI functions
(plus compat32 layer) and cleans up the documentation.

[hverkuil: fixed a few typos in the commit log]
[hverkuil: fixed vb2_core_reqbufs call in drivers/media/dvb-core/dvb_vb2.c]
[mchehab: fixed a typo in the commit log: revers->reverts]

Signed-off-by: Christoph Hellwig 
Signed-off-by: Sergey Senozhatsky 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

Merge tag 'v5.9-rc4' into patchwork

2020-09-07T14:13:06+00:00

Linux 5.9-rc4

* tag 'v5.9-rc4': (1001 commits)
  Linux 5.9-rc4
  io_uring: fix linked deferred ->files cancellation
  io_uring: fix cancel of deferred reqs with ->files
  include/linux/log2.h: add missing () around n in roundup_pow_of_two()
  mm/khugepaged.c: fix khugepaged's request size in collapse_file
  mm/hugetlb: fix a race between hugetlb sysctl handlers
  mm/hugetlb: try preferred node first when alloc gigantic page from cma
  mm/migrate: preserve soft dirty in remove_migration_pte()
  mm/migrate: remove unnecessary is_zone_device_page() check
  mm/rmap: fixup copying of soft dirty and uffd ptes
  mm/migrate: fixup setting UFFD_WP flag
  mm: madvise: fix vma user-after-free
  checkpatch: fix the usage of capture group ( ... )
  fork: adjust sysctl_max_threads definition to match prototype
  ipc: adjust proc_ipc_sem_dointvec definition to match prototype
  mm: track page table modifications in __apply_to_page_range()
  MAINTAINERS: IA64: mark Status as Odd Fixes only
  MAINTAINERS: add LLVM maintainers
  MAINTAINERS: update Cavium/Marvell entries
  mm: slub: fix conversion of freelist_corrupted()
  ...

media: rc: harmonize infrared durations to microseconds

2020-09-03T14:18:55+00:00

rc-core kapi uses nanoseconds for infrared durations for receiving, and
microseconds for sending. The uapi already uses microseconds for both,
so this patch does not change the uapi.

Infrared durations do not need nanosecond resolution. IR protocols do not
have durations shorter than about 100 microseconds. Some IR hardware offers
250 microseconds resolution, which is sufficient for most protocols.
Better hardware has 50 microsecond resolution and is enough for every
protocol I am aware off.

Unify on microseconds everywhere. This simplifies the code since less
conversion between microseconds and nanoseconds needs to be done.

This affects:
 - rx_resolution member of struct rc_dev
 - timeout member of struct rc_dev
 - duration member in struct ir_raw_event

Cc: "Bruno Prémont" 
Cc: Hans Verkuil 
Cc: Maxim Levitsky 
Cc: Patrick Lerda 
Cc: Kevin Hilman 
Cc: Neil Armstrong 
Cc: Jerome Brunet 
Cc: Martin Blumenstingl 
Cc: Sean Wang 
Cc: Matthias Brugger 
Cc: Patrice Chotard 
Cc: Maxime Ripard 
Cc: Chen-Yu Tsai 
Cc: "David Härdeman" 
Cc: Benjamin Valentin 
Cc: Antti Palosaari 
Signed-off-by: Sean Young 
Signed-off-by: Mauro Carvalho Chehab

media: Use fallthrough pseudo-keyword

2020-08-29T06:35:27+00:00

Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

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