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Linux 4.6-rc6
* tag 'v4.6-rc6': (762 commits)
Linux 4.6-rc6
EDAC: i7core, sb_edac: Don't return NOTIFY_BAD from mce_decoder callback
Documentation/sysctl/vm.txt: update numa_zonelist_order description
lib/stackdepot.c: allow the stack trace hash to be zero
rapidio: fix potential NULL pointer dereference
mm/memory-failure: fix race with compound page split/merge
ocfs2/dlm: return zero if deref_done message is successfully handled
Ananth has moved
kcov: don't profile branches in kcov
kcov: don't trace the code coverage code
mm: wake kcompactd before kswapd's short sleep
.mailmap: add Frank Rowand
mm/hwpoison: fix wrong num_poisoned_pages accounting
mm: call swap_slot_free_notify() with page lock held
mm: vmscan: reclaim highmem zone if buffer_heads is over limit
numa: fix /proc/<pid>/numa_maps for THP
mm/huge_memory: replace VM_NO_THP VM_BUG_ON with actual VMA check
mailmap: fix Krzysztof Kozlowski's misspelled name
thp: keep huge zero page pinned until tlb flush
mm: exclude HugeTLB pages from THP page_mapped() logic
...
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We print an uninitialized "actlen" variable on the error path.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Allocate an explicit i2c mux core to handle parent and child adapters
etc. Update the select op to be in terms of the i2c mux core instead
of the child adapter.
Tested-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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The v4l2_device_call_* defines filter subdevs based on the grp_id value.
But some drivers use a bitmask, so instead of filtering by grp_id == value,
you want to filter by grp_id & value.
Make variants of these defines to do this.
The 'has_op' define has been extended to have a grp_id argument as well, and
a mask variant has been added.
This extra argument required a change to go7007.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Commit 588afcc1c0e4 ("[media] usbvision fix overflow of interfaces
array")' should be reverted, because:
* "!dev->actconfig->interface[ifnum]" won't catch a case where the value
is not NULL but some garbage. This way the system may crash later with
GPF.
* "(ifnum >= USB_MAXINTERFACES)" does not cover all the error
conditions. "ifnum" should be compared to "dev->actconfig->
desc.bNumInterfaces", i.e. compared to the number of "struct
usb_interface" kzalloc()-ed, not to USB_MAXINTERFACES.
* There is a "struct usb_device" leak in this error path, as there is
usb_get_dev(), but no usb_put_dev() on this path.
* There is a bug of the same type several lines below with number of
endpoints. The code is accessing hard-coded second endpoint
("interface->endpoint[1].desc") which may not exist. It would be great
to handle this in the same patch too.
* All the concerns above are resolved by already-accepted commit fa52bd50
("[media] usbvision: fix crash on detecting device with invalid
configuration")
* Mailing list message:
http://www.spinics.net/lists/linux-media/msg94832.html
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org> # for v4.5
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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These are false positives, but still easy to fix.
pvrusb2-hdw.c:3676 pvr2_send_request_ex() error: we previously assumed 'write_data' could be null (see line 3648)
pvrusb2-hdw.c:3829 pvr2_send_request_ex() error: we previously assumed 'read_data' could be null (see line 3649)
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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An V4L2_CID_PRIVATE_SHARPNESS macro is defined in the au0828 driver, but
never used. Remove it.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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On the particular case when the product id is 0x2101 we have requested
for a firmware but after processing it we missed releasing it.
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Instead of returning -1, return valid error codes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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When we returned on error we missed freeing p_current_fw and p_buffer.
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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If au0828 gets removed, we need to remove the notifiers.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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API"
Extending the lifetime of the media_device struct is not handled well
by the core, as it will erase some data from the struct, when
media_device_cleanup() is called after unregistering it.
While we have a fixup patch for it already, the usage of those new
functions are needed only when we share data with other drivers.
So, better to revert the changes.
This reverts commit 182dde7c5d4c ("[media] media: au0828 change
to use Managed Media Controller API")
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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The au0828 dev_state is actually a bit mask. It should not be
checking with "==" but, instead, with a logic and. There are some
places where it was doing it wrong.
Fix that by replacing the dev_state set/clear/test with the
bitops.
As reviewed by Shuah:
"Looks good. Tested running bind/unbind au0828 loop for 1000 times.
Didn't see any problems and the v4l2_querycap() problem has been
fixed with this patch.
After the above test, ran bind/unbind snd_usb_audio 1000 times.
Didn't see any problems. Generated media graph and the graph
looks good."
Cc: stable@vger.kernel.org
Reviewed-by: Shuah Khan <shuahkh@osg.samsung.com>
Tested-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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au0828_v4l2_close() check for dev_state == DEV_DISCONNECTED will fail to
detect the device disconnected state correctly, if au0828_v4l2_open() runs
to set the DEV_INITIALIZED bit. A loop test of bind/unbind found this bug
by increasing the likelihood of au0828_v4l2_open() occurring while unbind
is in progress. When au0828_v4l2_close() fails to detect that the device
is in disconnect state, it attempts to power down the device and fails with
the following general protection fault:
[ 260.992962] Call Trace:
[ 260.993008] [<ffffffffa0f80f0f>] ? xc5000_sleep+0x8f/0xd0 [xc5000]
[ 260.993095] [<ffffffffa0f6803c>] ? fe_standby+0x3c/0x50 [tuner]
[ 260.993186] [<ffffffffa0ef541c>] au0828_v4l2_close+0x53c/0x620 [au0828]
[ 260.993298] [<ffffffffa0d08ec0>] v4l2_release+0xf0/0x210 [videodev]
[ 260.993382] [<ffffffff81570f9c>] __fput+0x1fc/0x6c0
[ 260.993449] [<ffffffff815714ce>] ____fput+0xe/0x10
[ 260.993519] [<ffffffff8116eb83>] task_work_run+0x133/0x1f0
[ 260.993602] [<ffffffff810035d0>] exit_to_usermode_loop+0x140/0x170
[ 260.993681] [<ffffffff810061ca>] syscall_return_slowpath+0x16a/0x1a0
[ 260.993754] [<ffffffff82835fb3>] entry_SYSCALL_64_fastpath+0xa6/0xa8
Cc: stable@vger.kernel.org
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Fix to clear enable/disable/change source handlers in the media device
when media device is unregistered in au0828_unregister_media_device().
When au0828 module is removed, snd-usb-audio shouldn't call the handlers.
Clearing will ensure snd-usb-audio won't call them once au0828 is removed.
[mchehab@osg.samsung.com: fix a compilation breakage]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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For au0828_enable_source() to work, the tuner links should be
disabled and the tuner/decoder should be cached at au0828 struct.
While here, put dev->decoder cache together with dev->tuner, as
it makes easier to drop both latter if/when we move the enable
routines to the V4L2 core.
Fixes: 9822f4173f84 ('[media] au0828: use v4l2_mc_create_media_graph()')
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Reviewed-by: Shuah Khan <shuahkh@osg.samsung.com>
Tested-by: Shuah Khan <shuahkh@osg.samsung.com>
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Disable tuner to demod link in au0828_media_device_register(). This step
should be done after dvb graph is created.
[mchehab@osg.samsung.com: Solve conflictst to apply it upstream]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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This fixes those two smatch warnings:
drivers/media/usb/gspca/touptek.c:206 val_reply() warn: argument 3 to %02x specifier has type 'char'
drivers/media/usb/gspca/touptek.c:222 reg_w() warn: argument 4 to %02x specifier has type 'char'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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As warned by smatch:
drivers/media/usb/gspca/touptek.c:220 reg_w() error: doing dma on the stack (buff)
drivers/media/usb/gspca/touptek.c:458 configure() error: doing dma on the stack (buff)
This can fail, as the stack may not be in a memory that would
allod DMA. So, use the usb_buf instead.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Some functions in the au0828 driver are only used when CONFIG_MEDIA_CONTROLLER
is enabled, and otherwise defined as empty functions:
media/usb/au0828/au0828-core.c:208:13: error: 'au0828_media_graph_notify' defined but not used [-Werror=unused-function]
media/usb/au0828/au0828-core.c:262:12: error: 'au0828_enable_source' defined but not used [-Werror=unused-function]
media/usb/au0828/au0828-core.c:412:13: error: 'au0828_disable_source' defined but not used [-Werror=unused-function]
This moves the #ifdef so the entire definitions are hidden in this case.
[mchehab@osg.samsung.com: As pointed by Shuah Khan, a return 0 can be removed]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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EMP202 chip inside Terratec Grabby (hw rev 2) seems to require some time
before accessing reliably its registers. Otherwise it returns some values
previously put on the I2C bus.
To account for that period, we delay card setup until we have a proof that
accessing AC97 registers is reliable. We get this proof by polling
AC97_RESET until the expected value is read. We also check that unrelated
registers don't return the same value. This second check handles the case
where the expected value is constantly returned no matter which register
is accessed.
Signed-off-by: Matthieu Rogez <matthieu.rogez@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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When snd_usb_audio gets probed first, audio mixer doesn't get linked to
the decoder.
Change au0828_media_graph_notify() to handle the mixer entity getting
registered before the decoder.
Change au0828_media_device_register() to invoke
au0828_media_graph_notify() to connect entites that were created prior
to registering the notify handler.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reported-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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TeVii S662 is a USB 2.0 DVB-S2 tuner that's identical to TechnoTrend
S2-4600 tuner. Add the USB ID to dw2102 driver.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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ts2020.h was already included a few lines earlier. Remove the unnecessary entry.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Terratec Grabby (hw rev 2) Record led is connected to GPIO 3
and its logic is inverted: (PIO3 = 0: on, PIO3 = 1: off).
Signed-off-by: Matthieu Rogez <matthieu.rogez@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Terratec Grabby (hw rev 2) REC button uses the standard snapshot button
configuration.
Signed-off-by: Matthieu Rogez <matthieu.rogez@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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The cleanup that changed the em28xx driver to use v4l2_mc_create_media_graph
instead of its own implementation causes a build error when CONFIG_MEDIA_CONTROLLER
is disabled:
drivers/media/usb/em28xx/em28xx-video.c: In function 'em28xx_v4l2_init':
drivers/media/usb/em28xx/em28xx-video.c:2717:38: error: 'struct em28xx' has no member named 'media_dev'
This puts the new code inside the same #ifdef that controls the presence
of the 'media_dev' member, and that the old code was in.
Fixes: de39078779cb ("[media] em2xx: use v4l2_mc_create_media_graph()")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Change vidioc_s_input() to enable the media source for the newly
selected input.
v4l2-core enables source before calling au0828's vidioc_s_input()
handler. Hence, when input selection changes, media source for the
newly selected input needs to be enabled.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Convert the TT S2-4600 USB tuner to use the I2C binding for attaching
the demodulator instead of the old m88ds3103_attach method.
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Add callback parameter to select enable / disable slave TS and use
it when slave demod is in use.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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dev->ctrl_input is set in vidioc_s_input() and doesn't get set in
au0828_s_input(). As a result, dev->ctrl_input is left uninitialized
until user space calls s_input.
It works correctly because the default input value is 0 and which is
what dev->ctrl_input gets initialized via kzalloc().
Change to set dev->ctrl_input in au0828_s_input(). Also optimize
vidioc_s_input() to return if the new input value is same as the
current.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Signed-off-by: Philippe Valembois <lephilousophe@users.sourceforge.net>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Add support for Intel R200 depth camera in uvc driver.
This includes adding new uvc GUIDs for the new pixel formats,
adding new V4L pixel format definition to user api headers,
and updating the uvc driver GUID-to-4cc tables with the new formats.
Tested-by: Greenberg, Aviv D <aviv.d.greenberg@intel.com>
Signed-off-by: Aviv Greenberg <aviv.d.greenberg@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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There's no reason to implement its own function to create the
media graph. So, use the core one.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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As we want au0828 to use the core function to create the MC
graphs, use enum demod_pad_index instead of
enum au8522_media_pads.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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As warned by smatch:
drivers/media/usb/dvb-usb/technisat-usb2.c:263 technisat_usb2_set_led() error: doing dma on the stack (led)
drivers/media/usb/dvb-usb/technisat-usb2.c:280 technisat_usb2_set_led_timer() error: doing dma on the stack (&b)
drivers/media/usb/dvb-usb/technisat-usb2.c:341 technisat_usb2_identify_state() error: doing dma on the stack (version)
drivers/media/usb/dvb-usb/technisat-usb2.c:609 technisat_usb2_get_ir() error: doing dma on the stack (buf)
drivers/media/usb/dvb-usb/technisat-usb2.c:619 technisat_usb2_get_ir() error: doing dma on the stack (buf)
Create a buffer at the device state and use it for all the DMA
transfers.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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As warned by smatch:
drivers/media/usb/airspy/airspy.c:541 airspy_start_streaming() warn: test_bit() takes a bit number
drivers/media/usb/airspy/airspy.c:569 airspy_start_streaming() warn: test_bit() takes a bit number
drivers/media/usb/airspy/airspy.c:605 airspy_stop_streaming() warn: test_bit() takes a bit number
set_bit/clear_bit argument is the bit number, and not 1 << bit.
Thankfully, one of the bits was not used (URB_BUF), with would
otherwise cause a driver misfunctioning.
Clean this mess by always using set_bit/clear_bit/test_bit and
removing the unused bit.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Remove the unused ovfx2_vga_mode/ovfx2_cif_mode arrays from the ov519
driver.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Fix the ov519 driver not working (unable to talk to the sensor) when
plugged into a xhci host. The root cause here is that uhci/ohci/ehci
hosts typically will send any pending async requests every milli-second
and then go to sleep for the rest if the milli-second, where as xhci hosts
send them immediately, causing things to go too fast for the ov519 bridge.
This commit adds a few delays fixing this.
Signed-off-by: Wesley Post <pa4wdh@xs4all.nl>
[hdegoede@redhat.com: Also add delays to w996Xcf.c, as that needs them too]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Change au0828 to check if tuner is free or not before changing tuner
configuration.
vidioc_g_tuner(), and au0828_v4l2_close() now call v4l-core interface
v4l_enable_media_source() before changing tuner configuration.
Remove au0828_enable_analog_tuner() as it is no longer needed because
v4l2-core implements common interfaces to check for media source
availability.
In addition, queue_setup() no longer needs the tuner availability check
since v4l2-core does it.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Add enable_source and disable_source handlers. The enable source handler
is called from v4l2-core, dvb-core, and ALSA drivers to check if the
shared media source is free.
The disable source handler is called to release the shared media
source.
[mchehab@osg.samsung.com: fix merge conflicts]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Register entity_notify async hook to create links between existing
bridge driver entities and a newly added non-bridge driver entities. For
example, this handler creates link between V4L decoder entity and ALSA
mixer entity.
[mchehab@osg.samsung.com: fix merge conflicts and make
au0828_media_graph_notify static to shut up a warning]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Change au0828_create_media_graph() to find and disable
tuner and demod link. This helps avoid an additional
disable step when tuner is requested by video or audio.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Create tuner to demod pad link in disabled state to avoid disable step
when tuner resource is requested by dvb.
[mchehab@osg.samsung.com: fix a merge conflict]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Media device initialization and registration steps are split. There is a
window between media device init and media device register during usb
probe.
au0828 bridge driver and snd-usb-audio could try to initialize the media
device, if they simply checked, whether the device has been registered.
They also need to check whether the device has been initialized.
Change the au0828-core to check if media device is already initialized
during initialization step and check if media device is already
registered during the registration step.
[mchehab@osg.samsung.com: fix a merge conflict]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Change au0828 to use Managed Media Controller API to share media device
and coordinate creating/deleting the shared media device with the
snd-usb-audio driver. The shared media device is created as device
resource of the parent usb device of the two drivers.
Populate media device model with USB Device product name instead of
au0828 device board name. This change is necessary because, if the media
device is registered by the snd-usb-audio driver first, and it doesn't
know the au0828 board name.
[mchehab@osg.samsung.com: Fix merge conflicts]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Change au0828-core to use au8522_media_pads enum defines
instead of hard-coding the pad values.
[mchehab@osg.samsung.com: patch rebased, as the code was
moved to au0828-video.c. Also added AU8522_PAD_INPUT to the list
of pad number replacements]
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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That fixes the following smatch warning:
drivers/media/usb/pvrusb2/pvrusb2-hdw.c:4909 pvr2_hdw_state_log_state() error: buffer overflow 'buf' 256 <= 4294967294
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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The buffer_complete() routine assumes that sp is not NULL,
otherwise it will fail completely. Btw, this is also
assumed at pvr2_buffer_queue(), with is the routine that
setups the URB handling.
So, remove the bogus for the callback at buffer_complete.
This fix this smatch warning:
drivers/media/usb/pvrusb2/pvrusb2-io.c:476 buffer_complete() warn: variable dereferenced before check 'sp' (see line 472)
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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Right now, media_device_pci_init and media_device_usb_init does
media_device allocation internaly. That preents its usage when
the media_device struct is embedded on some other structure.
Move memory allocation outside it, to make it more generic.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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