Commit Graph

519348 Commits

Author SHA1 Message Date
Philippe Coval
9b071a4355 ideapad_laptop: Add Lenovo G40-30 to devices without radio switch
Lenovo G40-30 does not provide any physical radio switch to user.
Therefore disable the rfkill switch identically to the Yoga 2 approach.
(Note for later, models ids are sorted alphabetically).

Benefit is to make wireless available again without unloading module.

It was tested successfully on 4.1.0-rc1 base with this model:
(LENOVO_MT_80FY_BU_idea_FM_Lenovo G40-30).

BugLink: https://bugs.launchpad.net/ideapad-laptop/+bug/1450946
Cc: platform-driver-x86@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Philippe Coval <rzr@gna.org>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2015-05-03 11:03:36 -07:00
Linus Torvalds
3333222484 Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave dmaengine fixes from Vinod Koul:
 "Here are the fixes in dmaengine subsystem for rc2:

   - privatecnt fix for slave dma request API by Christopher

   - warn fix for PM ifdef in usb-dmac by Geert

   - fix hardware dependency for xgene by Jean"

* 'next' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: increment privatecnt when using dma_get_any_slave_channel
  dmaengine: xgene: Set hardware dependency
  dmaengine: usb-dmac: Protect PM-only functions to kill warning
2015-05-03 10:49:04 -07:00
Linus Torvalds
180d89f6ef powerpc fixes for 4.1 # 2
- Build fix for SMP=n in book3s_xics.c
 - Fix for Daniel's pci_controller_ops on powernv.
 - Revert the TM syscall abort patch for now.
 - CPU affinity fix from Nathan.
 - Two EEH fixes from Gavin.
 - Fix for CR corruption from Sam.
 - Selftest build fix.
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Merge tag 'powerpc-4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc fixes from Michael Ellerman:
 - build fix for SMP=n in book3s_xics.c
 - fix for Daniel's pci_controller_ops on powernv.
 - revert the TM syscall abort patch for now.
 - CPU affinity fix from Nathan.
 - two EEH fixes from Gavin.
 - fix for CR corruption from Sam.
 - selftest build fix.

* tag 'powerpc-4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
  powerpc/powernv: Restore non-volatile CRs after nap
  powerpc/eeh: Delay probing EEH device during hotplug
  powerpc/eeh: Fix race condition in pcibios_set_pcie_reset_state()
  powerpc/pseries: Correct cpu affinity for dlpar added cpus
  selftests/powerpc: Fix the pmu install rule
  Revert "powerpc/tm: Abort syscalls in active transactions"
  powerpc/powernv: Fix early pci_controller_ops loading.
  powerpc/kvm: Fix SMP=n build error in book3s_xics.c
2015-05-03 10:28:36 -07:00
Jan Kara
2c869b262a ext4: fix growing of tiny filesystems
The estimate of necessary transaction credits in ext4_flex_group_add()
is too pessimistic. It reserves credit for sb, resize inode, and resize
inode dindirect block for each group added in a flex group although they
are always the same block and thus it is enough to account them only
once. Also the number of modified GDT block is overestimated since we
fit EXT4_DESC_PER_BLOCK(sb) descriptors in one block.

Make the estimation more precise. That reduces number of requested
credits enough that we can grow 20 MB filesystem (which has 1 MB
journal, 79 reserved GDT blocks, and flex group size 16 by default).

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
2015-05-02 23:58:32 -04:00
Davide Italiano
280227a75b ext4: move check under lock scope to close a race.
fallocate() checks that the file is extent-based and returns
EOPNOTSUPP in case is not. Other tasks can convert from and to
indirect and extent so it's safe to check only after grabbing
the inode mutex.

Signed-off-by: Davide Italiano <dccitaliano@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2015-05-02 23:21:15 -04:00
Lukas Czerner
d2dc317d56 ext4: fix data corruption caused by unwritten and delayed extents
Currently it is possible to lose whole file system block worth of data
when we hit the specific interaction with unwritten and delayed extents
in status extent tree.

The problem is that when we insert delayed extent into extent status
tree the only way to get rid of it is when we write out delayed buffer.
However there is a limitation in the extent status tree implementation
so that when inserting unwritten extent should there be even a single
delayed block the whole unwritten extent would be marked as delayed.

At this point, there is no way to get rid of the delayed extents,
because there are no delayed buffers to write out. So when a we write
into said unwritten extent we will convert it to written, but it still
remains delayed.

When we try to write into that block later ext4_da_map_blocks() will set
the buffer new and delayed and map it to invalid block which causes
the rest of the block to be zeroed loosing already written data.

For now we can fix this by simply not allowing to set delayed status on
written extent in the extent status tree. Also add WARN_ON() to make
sure that we notice if this happens in the future.

This problem can be easily reproduced by running the following xfs_io.

xfs_io -f -c "pwrite -S 0xaa 4096 2048" \
          -c "falloc 0 131072" \
          -c "pwrite -S 0xbb 65536 2048" \
          -c "fsync" /mnt/test/fff

echo 3 > /proc/sys/vm/drop_caches
xfs_io -c "pwrite -S 0xdd 67584 2048" /mnt/test/fff

This can be theoretically also reproduced by at random by running fsx,
but it's not very reliable, though on machines with bigger page size
(like ppc) this can be seen more often (especially xfstest generic/127)

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2015-05-02 21:36:55 -04:00
Chanho Park
9402bdcacd ext4 crypto: remove duplicated encryption mode definitions
This patch removes duplicated encryption modes which were already in
ext4.h. They were duplicated from commit 3edc18d and commit f542fb.

Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Michael Halcrow <mhalcrow@google.com>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-02 10:29:22 -04:00
Herbert Xu
fb63e5489f ext4 crypto: do not select from EXT4_FS_ENCRYPTION
This patch adds a tristate EXT4_ENCRYPTION to do the selections
for EXT4_FS_ENCRYPTION because selecting from a bool causes all
the selected options to be built-in, even if EXT4 itself is a
module.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-02 10:29:19 -04:00
Linus Torvalds
6c3c1eb3c3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Receive packet length needs to be adjust by 2 on RX to accomodate
    the two padding bytes in altera_tse driver.  From Vlastimil Setka.

 2) If rx frame is dropped due to out of memory in macb driver, we leave
    the receive ring descriptors in an undefined state.  From Punnaiah
    Choudary Kalluri

 3) Some netlink subsystems erroneously signal NLM_F_MULTI.  That is
    only for dumps.  Fix from Nicolas Dichtel.

 4) Fix mis-use of raw rt->rt_pmtu value in ipv4, one must always go via
    the ipv4_mtu() helper.  From Herbert Xu.

 5) Fix null deref in bridge netfilter, and miscalculated lengths in
    jump/goto nf_tables verdicts.  From Florian Westphal.

 6) Unhash ping sockets properly.

 7) Software implementation of BPF divide did 64/32 rather than 64/64
    bit divide.  The JITs got it right.  Fix from Alexei Starovoitov.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (30 commits)
  ipv4: Missing sk_nulls_node_init() in ping_unhash().
  net: fec: Fix RGMII-ID mode
  net/mlx4_en: Schedule napi when RX buffers allocation fails
  netxen_nic: use spin_[un]lock_bh around tx_clean_lock
  net/mlx4_core: Fix unaligned accesses
  mlx4_en: Use correct loop cursor in error path.
  cxgb4: Fix MC1 memory offset calculation
  bnx2x: Delay during kdump load
  net: Fix Kernel Panic in bonding driver debugfs file: rlb_hash_table
  net: dsa: Fix scope of eeprom-length property
  net: macb: Fix race condition in driver when Rx frame is dropped
  hv_netvsc: Fix a bug in netvsc_start_xmit()
  altera_tse: Correct rx packet length
  mlx4: Fix tx ring affinity_mask creation
  tipc: fix problem with parallel link synchronization mechanism
  tipc: remove wrong use of NLM_F_MULTI
  bridge/nl: remove wrong use of NLM_F_MULTI
  bridge/mdb: remove wrong use of NLM_F_MULTI
  net: sched: act_connmark: don't zap skb->nfct
  trivial: net: systemport: bcmsysport.h: fix 0x0x prefix
  ...
2015-05-01 20:51:04 -07:00
Stefan Hajnoczi
e412d3a32b virtio: fix typo in vring_need_event() doc comment
Here the "other side" refers to the guest or host.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-01 20:46:32 -07:00
Rusty Russell
feda5f939e virtio: pass baton to Michael Tsirkin
With my job change kernel work will be "own time"; I'm keeping lguest
and modules (and the virtio standards work), but virtio kernel has to
go.

This makes it clear that Michael is in charge.  He's good, but having
me watch over his shoulder won't help.

Good luck Michael!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-01 20:46:32 -07:00
Linus Torvalds
6fa72720a6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph RBD fix from Sage Weil.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: end I/O the entire obj_request on error
2015-05-01 20:35:39 -07:00
David S. Miller
a134f083e7 ipv4: Missing sk_nulls_node_init() in ping_unhash().
If we don't do that, then the poison value is left in the ->pprev
backlink.

This can cause crashes if we do a disconnect, followed by a connect().

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Wen Xu <hotdog3645@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-01 22:02:47 -04:00
Ilya Dryomov
082a75dad8 rbd: end I/O the entire obj_request on error
When we end I/O struct request with error, we need to pass
obj_request->length as @nr_bytes so that the entire obj_request worth
of bytes is completed.  Otherwise block layer ends up confused and we
trip on

    rbd_assert(more ^ (which == img_request->obj_request_count));

in rbd_img_obj_callback() due to more being true no matter what.  We
already do it in most cases but we are missing some, in particular
those where we don't even get a chance to submit any obj_requests, due
to an early -ENOMEM for example.

A number of obj_request->xferred assignments seem to be redundant but
I haven't touched any of obj_request->xferred stuff to keep this small
and isolated.

Cc: Alex Elder <elder@linaro.org>
Cc: stable@vger.kernel.org # 3.10+
Reported-by: Shawn Edwards <lesser.evil@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-05-01 16:44:30 -07:00
Alex Williamson
db7d4d7f40 vfio: Fix runaway interruptible timeout
Commit 13060b64b8 ("vfio: Add and use device request op for vfio
bus drivers") incorrectly makes use of an interruptible timeout.
When interrupted, the signal remains pending resulting in subsequent
timeouts occurring instantly.  This makes the loop spin at a much
higher rate than intended.

Instead of making this completely non-interruptible, we can change
this into a sort of interruptible-once behavior and use the "once"
to log debug information.  The driver API doesn't allow us to abort
and return an error code.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Fixes: 13060b64b8
Cc: stable@vger.kernel.org # v4.0
2015-05-01 16:31:41 -06:00
Theodore Ts'o
a44cd7a054 ext4 crypto: add padding to filenames before encrypting
This obscures the length of the filenames, to decrease the amount of
information leakage.  By default, we pad the filenames to the next 4
byte boundaries.  This costs nothing, since the directory entries are
aligned to 4 byte boundaries anyway.  Filenames can also be padded to
8, 16, or 32 bytes, which will consume more directory space.

Change-Id: Ibb7a0fb76d2c48e2061240a709358ff40b14f322
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-01 16:56:50 -04:00
Theodore Ts'o
5de0b4d0cd ext4 crypto: simplify and speed up filename encryption
Avoid using SHA-1 when calculating the user-visible filename when the
encryption key is available, and avoid decrypting lots of filenames
when searching for a directory entry in a directory block.

Change-Id: If4655f144784978ba0305b597bfa1c8d7bb69e63
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-01 16:56:45 -04:00
Alex Williamson
5f55d2ae69 vfio-pci: Log device requests more verbosely
Log some clues indicating whether the user is receiving device
request interfaces or not listening.  This can help indicate why a
driver unbind is blocked or explain why QEMU automatically unplugged
a device from the VM.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-05-01 14:00:53 -06:00
Florian Fainelli
1de2a662d0 MAINTAINERS: Update brcmstb entry
We have not heard back from Marc in a while, since we last asked him to
ack/nack this change here: https://lkml.org/lkml/2015/1/14/1004

This was back in January, we are in the 3.21^W4.1 merge window now, so,
as outlined in this email thread, remove him from the MAINTAINERS list
now.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-05-01 09:58:20 -07:00
Florian Fainelli
049a4c5065 MAINTAINERS: Remove Christian Daudt for mach-bcm
Christian has not been responding to mach-bcm related emails since
around July 2013, and with Scott and Ray maintaining the platform, we
should have enough coverage to get that going now.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-05-01 09:58:19 -07:00
Florian Fainelli
d3cc2e8650 MAINTAINERS: Update mach-bcm maintainers list
Add Ray Jui and Scott Branden for the mach-bcm/ entries.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
2015-05-01 09:58:18 -07:00
Linus Torvalds
64887b6882 Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "A few more btrfs fixes.

  These range from corners Filipe found in the new free space cache
  writeback to a grab bag of fixes from the list"

* 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: btrfs_release_extent_buffer_page didn't free pages of dummy extent
  Btrfs: fill ->last_trans for delayed inode in btrfs_fill_inode.
  btrfs: unlock i_mutex after attempting to delete subvolume during send
  btrfs: check io_ctl_prepare_pages return in __btrfs_write_out_cache
  btrfs: fix race on ENOMEM in alloc_extent_buffer
  btrfs: handle ENOMEM in btrfs_alloc_tree_block
  Btrfs: fix find_free_dev_extent() malfunction in case device tree has hole
  Btrfs: don't check for delalloc_bytes in cache_save_setup
  Btrfs: fix deadlock when starting writeback of bg caches
  Btrfs: fix race between start dirty bg cache writeout and bg deletion
2015-05-01 07:46:21 -07:00
Linus Torvalds
036f351e25 arm64 fixes:
- Fix perf devicetree warnings at probe time
 - Fix memory leak in __dma_free()
 - Ensure DMA buffers are always zeroed
 - Show IRQ trigger in /proc/interrupts (for parity with ARM)
 - Implement byte and halfword access for smp_{load_acquire,store_release}
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Not too much here, but we've addressed a couple of nasty issues in the
  dma-mapping code as well as adding the halfword and byte variants of
  load_acquire/store_release following on from the CSD locking bug that
  you fixed in the core.

   - fix perf devicetree warnings at probe time

   - fix memory leak in __dma_free()

   - ensure DMA buffers are always zeroed

   - show IRQ trigger in /proc/interrupts (for parity with ARM)

   - implement byte and halfword access for smp_{load_acquire,store_release}"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: perf: Fix the pmu node name in warning message
  arm64: perf: don't warn about missing interrupt-affinity property for PPIs
  arm64: add missing PAGE_ALIGN() to __dma_free()
  arm64: dma-mapping: always clear allocated buffers
  ARM64: Enable CONFIG_GENERIC_IRQ_SHOW_LEVEL
  arm64: add missing data types in smp_load_acquire/smp_store_release
2015-05-01 07:44:32 -07:00
Namhyung Kim
e944ec2ca0 perf report: Fix -T/--threads option to work again
The commit 512ae1bd6a ("perf tools: Consolidate management of default
sort orders") changed default value of the 'sort_order' variable to NULL
indicating that users don't set any sort keys on the command line.

However it missed to update a check in perf_evlist__tty_browse_hists()
so that 'perf report -T' cannot show the per-thread values after the
normal output.  This patch fixes it to work again.

Note that the -T option only works on --stdio and neither --sort nor
--parent option was given.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1430309328-28317-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-01 10:13:30 -03:00
Hans Verkuil
1555f3bf5c [media] saa7164: fix compiler warning
drivers/media/pci/saa7164/saa7164-dvb.c: In function ‘saa7164_dvb_register’:
drivers/media/pci/saa7164/saa7164-dvb.c:701:7: warning: ‘client_tuner’ may be used uninitialized in this function [-Wmaybe-uninitialized]
    if (!client_tuner || !client_tuner->dev.driver)
       ^

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 09:09:58 -03:00
Hans Verkuil
ebf984bb15 [media] v4l2: replace s_mbus_fmt by set_fmt in bridge drivers
Replace all calls to s_mbus_fmt in bridge drivers by calls to the
set_fmt pad op.

Remove the old try/s_mbus_fmt video ops since they are now no longer used.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 09:01:16 -03:00
Hans Verkuil
5eab498377 [media] v4l2: replace try_mbus_fmt by set_fmt in bridge drivers
Replace all calls to try_mbus_fmt in bridge drivers by calls to the
set_fmt pad op.

[mchehab@osg.samsung.com: fix a merge conflict at mcam-core.c]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:59:28 -03:00
Hans Verkuil
6e80c4738a [media] v4l2: replace s_mbus_fmt by set_fmt
The s_mbus_fmt video op is a duplicate of the pad op. Replace all uses
in sub-devices by the set_fmt() pad op.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:52:34 -03:00
Hans Verkuil
717fd5b490 [media] v4l2: replace try_mbus_fmt by set_fmt
The try_mbus_fmt video op is a duplicate of the pad op. Replace all uses
in sub-devices by the set_fmt() pad op.

Since try_mbus_fmt and s_mbus_fmt both map to the set_fmt pad op (but
with a different 'which' argument), this patch will replace both
try_mbus_fmt and s_mbus_fmt by set_fmt.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:48:49 -03:00
Hans Verkuil
da298c6d98 [media] v4l2: replace video op g_mbus_fmt by pad op get_fmt
The g_mbus_fmt video op is a duplicate of the pad op. Replace all uses
by the get_fmt pad op and remove the video op.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Cc: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:36:17 -03:00
Hans Verkuil
ebcff5fce6 [media] v4l2: replace enum_mbus_fmt by enum_mbus_code
Replace all calls to the enum_mbus_fmt video op by the pad
enum_mbus_code op and remove the duplicate video op.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kamil Debski <k.debski@samsung.com>
Acked-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:33:45 -03:00
Mauro Carvalho Chehab
90874cd61d dt3155: fix CodingStyle issues
There are a few lines longer than 80 cols for no good reason.
Fix them sooner than latter, making checkpatch.pl happy.

Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:30:06 -03:00
Hans Verkuil
7c89a21b88 [media] dt3155: add GFP_DMA32 flag to vb2 queue
Ensure that buffers are allocated from the DMA32 zone since this
device only handles 32 bit DMA addresses.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:25:59 -03:00
Hans Verkuil
cc11b140c3 [media] dt3155: move out of staging into drivers/media/pci
The dt3155 code is now in good shape, so move it out of staging into
drivers/media/pci. Mark in MAINTAINERS that I'll do Odd Fixes for this
driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:25:41 -03:00
Hans Verkuil
c34b7ef551 [media] dt3155v4l: support inputs VID0-3
The dt3155 together with the J1 breakout cable supports 4 inputs. Add
support for all inputs VID0 - VID3. Note that input VID0 is shared with
input J2.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:24:44 -03:00
Hans Verkuil
44a38dfb6a [media] dt3155v4l: fix format handling
Fix various v4l2-compliance issues regarding format handling.

Main problem was a missing colorspace value and incorrect format
checks. This driver supports a single format only.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:24:13 -03:00
Hans Verkuil
5c9ede4442 [media] dt3155v4l: drop CONFIG_DT3155_CCIR, use s_std instead
There is no need for CONFIG_DT3155_CCIR to select between 50/60 Hz,
that's why we have s_std.

Since this is a simple framegrabber there is no need for g/s_parm.
The frame period can be obtained via ENUMSTD instead.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:23:46 -03:00
Hans Verkuil
9db8baffbf [media] dt3155v4l: correctly start and stop streaming
Don't start streaming when a buffer is queued, instead implement the
start_streaming op and do it there, leaving it up to the vb2 framework
to call start_streaming when enough buffers have been queued.

And don't stop streaming from within the interrupt routine, instead do
that in stop_streaming.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:22:52 -03:00
Hans Verkuil
a6e9514414 [media] dt3155v4l: drop CONFIG_DT3155_STREAMING
No need to do this as a config option. Just support both MMAP and read()
methods like any other driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:22:09 -03:00
Hans Verkuil
9556be1217 [media] dt3155v4l: move vb2_queue to top-level
Instead of initializing the vb2_queue in open (and freeing in release)
do this in probe/remove instead. And as a bonus use the vb2 helper
functions to greatly simplify the driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:21:39 -03:00
Hans Verkuil
deb2897824 [media] dt3155v4l: remove bogus single-frame capture in init_board
For some weird reason an attempt is made in init_board to capture a
single frame. No clue why, and everything works fine without that
code.

I suspect this was test code that was never removed.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:20:58 -03:00
Hans Verkuil
5dcabee2c3 [media] dt3155v4l: remove pointless dt3155_alloc/free_coherent
No idea what the purpose is of these functions. I suspect this was used
once upon a time to pre-allocate buffer memory. But the allocated memory
isn't used anywhere anymore, so just remove this code.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:20:22 -03:00
Hans Verkuil
168b5092cc [media] dt3155v4l: add v4l2_device support
Add struct v4l2_device and register it. Also move the request_irq to
probe instead of doing that in open().

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:19:49 -03:00
Hans Verkuil
79656225e3 [media] dt3155v4l: remove unused statistics
Remove struct dt3155_stats since it isn't used.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:17:02 -03:00
Hans Verkuil
6a11087be3 [media] dt3155v4l: code cleanup
- Fix various spelling mistakes
- Whitespace cleanups
- Remove _ioc_ from ioctl names to shorten those names
- Remove bogus ifdef __KERNEL__
- Remove commented out code

No actual code is changed in this patch.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 08:16:31 -03:00
Alexey Khoroshilov
90ca75fd19 [media] marvell-ccic: fix memory leak on failure path in cafe_smbus_setup()
If i2c_add_adapter() fails, adap is not deallocated.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 07:50:54 -03:00
Hans Verkuil
8380b7e449 [media] marvell-ccic: fix V4L2_PIX_FMT_SBGGR8 support
The REG_CTRL0 register was never written if this format was selected,
instead an error was logged and whatever was last set in that register
was used.

Surprisingly, that seems to work if YUYV was selected, but we should
program this register explicitly.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 07:50:28 -03:00
Hans Verkuil
85ad0a3f68 [media] marvell-ccic: drop support for PIX_FMT_422P
I cannot get this format to work, the colors keep coming out wrong.
Since this has never worked I just drop support for this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 07:50:04 -03:00
Hans Verkuil
47ba7dbab6 [media] marvell-ccic: fix the bytesperline and sizeimage calculations
These were calculated incorrectly for the planar formats.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 07:49:37 -03:00
Hans Verkuil
75eb984714 [media] ov7670: use colorspace SRGB instead of JPEG
Even though the format is Y'CbCr, the colorspace used by the sensor
is almost certainly SRGB. The sensor is also not generating JPEG data,
so it makes no sense to use V4L2_COLORSPACE_JPEG here.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-01 07:49:11 -03:00