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Forcibly setting the subdev name to DRIVER_NAME (i.e. "IMX274") makes
it non-unique and less informative.
Let the driver use the default name from i2c, e.g. "IMX274 2-001a".
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Rearrange the imx274_start_<N> register tables to better match the
datasheet and slightly simplify code:
- collapes tables 1 and 2, they are applied one after each other and
together they implement the fixed part 1 of the startup procedure
in the datasheet
- while there, cleanup comments
- rename tables 3 and 4 -> 2 and 3, coherently with the datasheet
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The "mode" has been renamed to "binning" in commit 39dd23dc9d4c
("media: imx274: add cropping support via SELECTION API"), but this
define has not been updated.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The device is already suspended when it's the driver's remove function is
called. Remove redundant pm_runtime_set_suspended call.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The UDS is currently restricted based on a partition size of 256 pixels.
Document the actual restrictions, but don't increase the implementation.
The extended partition algorithm may later choose to utilise a larger
partition size to support overlapping partitions which will improve the
quality of the output images.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The SRU is currently restricted to 256 pixels as part of the current
partition algorithm. Document that the actual capability of this
component is 288 pixels, but don't increase the implementation.
The extended partition algorithm may later choose to utilise a larger
input to support overlapping partitions which will improve the quality
of the output images.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The style of this driver uses periods at the end of sentences in
comments, but it is applied inconsitently.
Update a selection of comments which were discovered to be missing their
period. Also fix the spelling of one usage of 'instantiate'
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The VSP1 has a minimum width and height of a single pixel, with the
exception of pixel formats with sub-sampling.
Remove the artificial minimum width and minimum height limitation, and
instead clamp the minimum dimensions based upon the sub-sampling
parameter of that dimension.
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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YCbCr planar formats can have different pitch values for the luma and
chroma planes. This isn't taken into account in the driver. Fix it.
Based on a BSP patch from Koji Matsuoka <koji.matsuoka.xm@renesas.com>.
Fixes: 7863ac504bc5 ("drm: rcar-du: Add tri-planar memory formats support")
[Updated documentation of the struct vsp1_du_atomic_config pitch field]
Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The LIF module has a data buffer to accommodate clock rate differences
between the DU and the VSP. Several programmable threshold values
control DU start of frame notification by the VSP and VSP clock
stop/resume. The R-Car Gen2 and Gen3 datasheets recommend values for the
different SoCs. Update the driver to use the recommended values for
optimal operation.
Based on a BSP patch from Koji Matsuoka <koji.matsuoka.xm@renesas.com>,
with Gen2 and V3H/V3M updates.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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All source files of the vsp1 driver are licensed under the GPLv2+ except
for vsp1_regs.h which is licensed under GPLv2. This is caused by a bad
copy&paste that dates back from the initial version of the driver. Fix
it.
Acked-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Acked-by: Sergei Shtylyov<sergei.shtylyov@cogentembedded.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The recent tvp5150 patchset added two new warnings:
drivers/media/i2c/tvp5150.c: In function 'tvp5150_querystd':
drivers/media/i2c/tvp5150.c:829:18: warning: unused variable 'decoder' [-Wunused-variable]
struct tvp5150 *decoder = to_tvp5150(sd);
^~~~~~~
drivers/media/i2c/tvp5150.c:1522:6: warning: no previous prototype for 'tvp5150_volatile_reg' [-Wmissing-prototypes]
bool tvp5150_volatile_reg(struct device *dev, unsigned int reg)
^~~~~~~~~~~~~~~~~~~~
Get rid of them.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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When irq is used, the lock is set via IRQ code. When it isn't,
the driver just assumes it is always locked. Instead, read the
lock status from the status register.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add the querystd video_op and make it return V4L2_STD_UNKNOWN while the
TVP5150 is not locked to a signal.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add callback to retrieve the current set norm.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Issue a V4L2_EVENT_SOURCE_CHANGE notification when the TVP5150 locks
onto a signal and when it loses the lock.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
[m.felsch@pengutronix.de: partly mainline part port]
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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To avoid short frames on stream start, keep output pins at high impedance
while we are not properly locked onto the input signal.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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This patch adds an optional interrupt handler to handle the sync
lock interrupt and sync lock status.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
[m.felsch@pengutronix.de: move added .g_std callback to separate patch]
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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To allow optional interrupt support, we want to configure the pin settings
dynamically. Move those register accesses out of the static initialization
tables.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
[m.felsch@pengutronix.de: drop init_default register remove]
[m.felsch@pengutronix.de: fix regmap access during reset()]
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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To trigger standard autodetection only the reset part of the routine
is necessary during probe(). Split this out to make it callable on its own.
[m.felsch@pengutronix.de: adapt commit message]
[m.felsch@pengutronix.de: add tvp5150_enable() to tvp5150_s_stream()]
[m.chehab@samsung.com: fix a compilation breakage]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Make sure to not overwrite decoder->norm when setting the standard
in hardware, but only when instructed by V4L2 API calls.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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If cropping isn't set explicitly by userspace, reset it to the maximum
possible rectangle in subdevice open if a standard change is detected.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
[m.felsch@pengutronix.de: move code from internal_ops.open() to pad_ops.init_cfg()]
[m.felsch@pengutronix.de: make use of tvp5150_set_default() helper]
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The patch adds three macros to bundle the mbus_framefmt default
values and a helper function to set the the default crop and
mbus_framefmt values.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Since commit 9a4c7e68f7e0 ("media: tvp5150: convert register
access to regmap")' the driver supports regmap. Now we can drop
the handmade bit update sequence and move to the regmap provided
helpers.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Regmap provides built in debugging, caching and provides dedicated
accessors for bit manipulations in registers, which make the following
changes a lot simpler.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The function only consists of a single switch case block without a
default case. Unsupported control requests are indicated by the -EINVAL
return code trough the last return statement at the end of the function. So
exiting just the switch case block returns the -EINVAL error code but the
hue control is supported and a zero should be returned instead.
Replace the break by a 'return 0' to fix this behaviour.
Fixes: d183e4efcae8 ("[media] v4l: tvp5150: Add missing break in set
control handler")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The driver ignored the width alignment which exists due to the UYVY
colorspace format. Fix the width alignment and make use of the the
provided v4l2 helper function to set the width, height and all
alignments in one.
Fixes: 963ddc63e20d ("[media] media: tvp5150: Add cropping support")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Now that all drivers are using pad signal types, we can get
rid of the global static definition, as routes are stablished
using the pad signal type.
The tuner and IF-PLL pads are now used only by the tuner core,
so move the definitions to be there.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As we don't need anymore to share pad numbers with similar
drivers, use its own pad definition instead of a global
model.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As we don't need anymore to share pad numbers with similar
drivers, use its own pad definition instead of a global
model.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As we don't need anymore to share pad numbers with similar
drivers, use its own pad definition instead of a global
model.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As we don't need anymore to share pad numbers with similar
drivers, use its own pad definition instead of a global
model.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As we don't need anymore to share pad numbers with similar
drivers, use its own pad definition instead of a global
model.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As we don't need anymore to share pad numbers with similar
drivers, use its own pad definition instead of a global
model.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As we don't need anymore to share pad numbers with similar
drivers, use its own pad definition instead of a global
model.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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When creating the audio link, use pad signals, instead of
hardcoding using the pad index number.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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On tuner pads, multiple signals are present. Be sure to get
the right PAD by using them.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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It is not trivial to debug troubles at media graph build.
So, add print messages to help debug what's happening,
in the case of an error occurs.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Instead of relying on a static map for pids, use the new sig_type
"taint" type to setup the pipelines with the same tipe between
different entities.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Consumer devices are provided with a wide different range of types
supported by the same driver, allowing different configutations.
In order to make easier to setup media controller links, "taint"
pads with the signal type it carries.
While here, get rid of DEMOD_PAD_VBI_OUT, as the signal it carries
is actually the same as the normal video output.
The difference happens at the video/VBI interface:
- for VBI, only the hidden lines are streamed;
- for video, the stream is usually cropped to hide the
vbi lines.
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The signal there is the same as the video output (well,
except for sliced VBI, but let's simplify the model and ignore
it, at least for now - as it is routed together with raw
VBI).
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The v4l2-compliance tool complains if a video doesn't start
with a zero sequence number.
While this shouldn't cause any real problem for apps, let's
make it happier, in order to better check the v4l2-compliance
differences before and after patchsets.
This is actually an old issue. It is there since at least its
videobuf2 conversion, e. g. changeset 3829fadc461 ("[media]
em28xx: convert to videobuf2"), if VB1 wouldn't suffer from
the same issue.
Cc: stable@vger.kernel.org
Fixes: d3829fadc461 ("[media] em28xx: convert to videobuf2")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Instead of using a register value, use an AMUX name, as otherwise
VIDIOC_G_AUDIO would fail.
Cc: stable@vger.kernel.org
Fixes: 766ed64de554 ("V4L/DVB (11827): Add support for Terratec Grabster AV350")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Follow the V4L2 spec, as warned by v4l2-compliance:
warn: v4l2-test-formats.cpp(732): TRY_FMT cannot handle an invalid pixelformat.
warn: v4l2-test-formats.cpp(733): This may or may not be a problem. For more information see:
warn: v4l2-test-formats.cpp(734): http://www.mail-archive.com/linux-media@vger.kernel.org/msg56550.html
Cc: stable@vger.kernel.org
Fixes: bddcf63313c6 ("V4L/DVB (9927): em28xx: use a more standard way to specify video formats")
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The a->index is not the name of the internal amux entry,
but, instead a value from zero to the maximum number
of audio inputs.
As the actual available inputs depend on each board, build
it dynamically.
This is broken for a really long time. On a quick check,
since at least commit 195a4ef627e1 ("V4L/DVB (6585): Convert
em28xx to video_ioctl2") this was not implemented right.
Fixes: 195a4ef627e1 ("V4L/DVB (6585): Convert em28xx to video_ioctl2")
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The parameters of v4l2_ctrl_new_std_menu_items() are tricky: instead of
the number of possible values, it requires the number of the maximum
value. In other words, the ARRAY_SIZE() value should be decremented,
otherwise it will go past the array bounds, as warned by KASAN:
[ 279.839688] BUG: KASAN: global-out-of-bounds in v4l2_querymenu+0x10d/0x180 [videodev]
[ 279.839709] Read of size 8 at addr ffffffffc10a4cb0 by task v4l2-compliance/16676
[ 279.839736] CPU: 1 PID: 16676 Comm: v4l2-compliance Not tainted 4.18.0-rc2+ #120
[ 279.839741] Hardware name: /NUC5i7RYB, BIOS RYBDWi35.86A.0364.2017.0511.0949 05/11/2017
[ 279.839743] Call Trace:
[ 279.839758] dump_stack+0x71/0xab
[ 279.839807] ? v4l2_querymenu+0x10d/0x180 [videodev]
[ 279.839817] print_address_description+0x1c9/0x270
[ 279.839863] ? v4l2_querymenu+0x10d/0x180 [videodev]
[ 279.839871] kasan_report+0x237/0x360
[ 279.839918] v4l2_querymenu+0x10d/0x180 [videodev]
[ 279.839964] __video_do_ioctl+0x2c8/0x590 [videodev]
[ 279.840011] ? copy_overflow+0x20/0x20 [videodev]
[ 279.840020] ? avc_ss_reset+0xa0/0xa0
[ 279.840028] ? check_stack_object+0x21/0x60
[ 279.840036] ? __check_object_size+0xe7/0x240
[ 279.840080] video_usercopy+0xed/0x730 [videodev]
[ 279.840123] ? copy_overflow+0x20/0x20 [videodev]
[ 279.840167] ? v4l_enumstd+0x40/0x40 [videodev]
[ 279.840177] ? __handle_mm_fault+0x9f9/0x1ba0
[ 279.840186] ? __pmd_alloc+0x2c0/0x2c0
[ 279.840193] ? __vfs_write+0xb6/0x350
[ 279.840200] ? kernel_read+0xa0/0xa0
[ 279.840244] ? video_usercopy+0x730/0x730 [videodev]
[ 279.840284] v4l2_ioctl+0xa1/0xb0 [videodev]
[ 279.840295] do_vfs_ioctl+0x117/0x8a0
[ 279.840303] ? selinux_file_ioctl+0x211/0x2f0
[ 279.840313] ? ioctl_preallocate+0x120/0x120
[ 279.840319] ? selinux_capable+0x20/0x20
[ 279.840332] ksys_ioctl+0x70/0x80
[ 279.840342] __x64_sys_ioctl+0x3d/0x50
[ 279.840351] do_syscall_64+0x6d/0x1c0
[ 279.840361] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 279.840367] RIP: 0033:0x7fdfb46275d7
[ 279.840369] Code: b3 66 90 48 8b 05 b1 48 2d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 81 48 2d 00 f7 d8 64 89 01 48
[ 279.840474] RSP: 002b:00007ffee1179038 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
[ 279.840483] RAX: ffffffffffffffda RBX: 00007ffee1179180 RCX: 00007fdfb46275d7
[ 279.840488] RDX: 00007ffee11790c0 RSI: 00000000c02c5625 RDI: 0000000000000003
[ 279.840493] RBP: 0000000000000002 R08: 0000000000000020 R09: 00000000009f0902
[ 279.840497] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffee117a5a0
[ 279.840501] R13: 00007ffee11790c0 R14: 0000000000000002 R15: 0000000000000000
[ 279.840515] The buggy address belongs to the variable:
[ 279.840535] tvp5150_test_patterns+0x10/0xffffffffffffe360 [tvp5150]
Fixes: c43875f66140 ("[media] tvp5150: replace MEDIA_ENT_F_CONN_TEST by a control")
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Replace "falltrough" with a proper "fall through" annotation.
This fix is part of the ongoing efforts to enabling
-Wimplicit-fallthrough
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.
Cc: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Cc: Benoit Parrot <bparrot@ti.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Hyun Kwon <hyun.kwon@xilinx.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The VIDEO_STILLPICTURE is only implemented by one driver, while
VIDEO_GET_EVENT has two users in tree. In both cases, it is fairly
easy to handle the compat ioctls in the native handler rather
than relying on translation in fs/compat_ioctls.
In effect, this means that now the drivers implement both structure
layouts in both native and compat mode, but I don't see anything
wrong with that.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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