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The DISCOM calculates a CRC on a configurable window of the frame. It
interfaces to the VSP through the UIF glue, hence the name used in the
code.
The module supports configuration of the CRC window through the crop
rectangle on the sink pad of the corresponding entity. However, unlike
the traditional V4L2 subdevice model, the crop rectangle does not
influence the format on the source pad.
Modeling the DISCOM as a sink-only entity would allow adhering to the
V4L2 subdevice model at the expense of more complex code in the driver,
as at the hardware level the UIF is handled as a sink+source entity. As
the DISCOM is only present in R-Car Gen3 VSP-D and VSP-DL instances it
is not exposed to userspace through V4L2 but controlled through the DU
driver. We can thus change this model later if needed without fear of
affecting userspace.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add a parameter (in the form of a structure to ease future API
extensions) to the VSP atomic flush handler to pass CRC source
configuration, and pass the CRC value to the completion callback.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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To make vsp1_subdev_set_pad_format() usable by entities that support
selection rectangles, we need to reset the crop and compose rectangles
when setting the format on the sink pad. Do so and replace the custom
set_fmt implementation of the histogram code by a call to
vsp1_subdev_set_pad_format().
Resetting the crop and compose rectangles for entities that don't
support crop and compose has no adverse effect as the rectangles are
ignored anyway.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The implementation of the set_fmt pad operation is identical in the
three modules. Move it to a generic helper function.
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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Adopt the SPDX license identifier headers to ease license compliance
management. All files in the driver are licensed under the GPLv2+ except
for the vsp1_regs.h file which is licensed under the GPLv2. This is
likely an oversight, but fixing this requires contacting the copyright
owners and is out of scope for this patch.
While at it fix the file descriptions to match file names where copy and
paste error occurred.
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 Cadence MIPI-CSI2 TX controller is an hardware block meant to be used
as a bridge between pixel interfaces and a CSI-2 bus.
It supports operating with an internal or external D-PHY, with up to 4
lanes, or without any D-PHY. The current code only supports the latter
case.
While the virtual channel input on the pixel interface can be directly
mapped to CSI2, the datatype input is actually a selection signal (3-bits)
mapping to a table of up to 8 preconfigured datatypes/formats (programmed
at start-up)
The block supports up to 8 input datatypes.
Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
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 clocks enabled by csi2rx_start function are intended to be disabled in
an error path but there are two issues:
1) the loop condition is always true and
2) the first clock disabled is the the one enabling of which failed.
Fix these two bugs by changing the loop condition as well as only disabling
the clocks that were actually enabled.
Reported-by: Mauro Chehab <mchehab@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The Cadence CSI-2 RX Controller is an hardware block meant to be used as a
bridge between a CSI-2 bus and pixel grabbers.
It supports operating with internal or external D-PHY, with up to 4 lanes,
or without any D-PHY. The current code only supports the latter case.
It also support dynamic mapping of the CSI-2 virtual channels to the
associated pixel grabbers, but that isn't allowed at the moment either.
Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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slot can be controlled by user-space, hence leading to
a potential exploitation of the Spectre variant 1 vulnerability,
as warned by smatch:
drivers/media/dvb-core/dvb_ca_en50221.c:1479 dvb_ca_en50221_io_write() warn: potential spectre issue 'ca->slot_info' (local cap)
Acked-by: "Jasmin J." <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Right now, the Siano's core uses GFP_DMA for both USB and
SDIO variants of the driver. There's no reason to use it
for USB. So, pass GFP_DMA as a parameter during sms core
register.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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There's s no reason why it should be using GFP_DMA there.
This is an USB driver. Any restriction should be, instead,
at HCI core, if any.
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: linux-mm@kvack.org
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The minimum possible timeout of ite-cir is 8 samples, which is
typically about 70us. The driver however changes the FIFO trigger
level from the hardware's default of 1 byte to 17 bytes, so the minimum
usable timeout value is 17 * 8 samples, which is typically about 1.2ms.
Tests showed that using timeouts down to 1.2ms actually work fine.
The current default timeout of 200ms is much longer than necessary and
the maximum timeout of 1s seems to have been chosen a bit arbitrarily.
So change the minimum timeout to the driver's limit of 17 * 8 samples
and bring timeout and maximum timeout in line with the settings
of many other receivers.
Signed-off-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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ir_raw_event_set_idle() sends a timeout event which is not needed, and
on startup no reset event is needed either.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Drivers should never produce consecutive pulse or space raw events. Should
that occur, we would have bigger problems than this code is trying to
guard against.
Note that we already log an error should a driver misbehave.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Report an error if this is not the case or any problem with the generated
raw events.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Any spaces events received after a reset or startup should be discarded,
so ensure the rc device is in idle mode.
This also makes it much easier to detect incorrect raw events, as we will
do in a following commit.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Fallthrough is not intended here.
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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A mceusb device has been observed producing invalid irdata. Proactively
guard against this.
Suggested-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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If the IR timeout is set on vid 1784 pid 0011, the device starts
behaving strangely.
Reported-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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This is a core media file... it shoudn't have so many coding
style issues! The last patch ended by being submitted with
an error like that, very likely due to some cut and paste
issue.
Maybe it is time to clean it up. Do it with the auto
fix logic:
./scripts/checkpatch.pl -f drivers/media/dvb-core/dvb_frontend.c --strict --fix-inplace
Then manually fix the errors introduced by it.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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During destruction, a race condition in
dvb_media_controller_disable_source() can cause a kernel crash,
because the "mdev" pointer has been read successfully while another
task executes dvb_usb_media_device_unregister(), which destroys the
object. Example for such a crash:
general protection fault: 0000 [#1] SMP
CPU: 1 PID: 301 Comm: vdr Not tainted 4.8.1-nuc+ #102
[142B blob data]
task: ffff8802301f2040 task.stack: ffff880233728000
RIP: 0010:[<ffffffff816c296b>] [<ffffffff816c296b>] dvb_frontend_release+0xcb/0x120
RSP: 0018:ffff88023372bdd8 EFLAGS: 00010202
RAX: 001fd55c000000da RBX: ffff880236bad810 RCX: 0000000000000000
RDX: ffff880235bd81f0 RSI: 0000000000000246 RDI: ffff880235bd81e8
RBP: ffff88023372be00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88022f009910 R12: 0000000000000000
R13: ffff880235a21a80 R14: ffff880235bd8000 R15: ffff880235bb8a78
FS: 0000000000000000(0000) GS:ffff88023fd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f96edd69818 CR3: 0000000002406000 CR4: 00000000001006e0
Stack:
ffff88022f009900 0000000000000008 ffff880235bb8a78 ffff8802344fbb20
ffff880236437b40 ffff88023372be48 ffffffff8117a81e ffff880235bb8a78
ffff88022f009910 ffff8802335a7400 ffff8802301f2040 ffff88022f009900
Call Trace:
[<ffffffff8117a81e>] __fput+0xde/0x1d0
[<ffffffff8117a949>] ____fput+0x9/0x10
[<ffffffff810a9fce>] task_work_run+0x7e/0xa0
[<ffffffff81094bab>] do_exit+0x27b/0xa50
[<ffffffff810407e3>] ? __do_page_fault+0x1c3/0x430
[<ffffffff81095402>] do_group_exit+0x42/0xb0
[<ffffffff8109547f>] SyS_exit_group+0xf/0x10
[<ffffffff8108bedb>] entry_SYSCALL_64_fastpath+0x13/0x8f
Code: 31 c9 49 8d be e8 01 00 00 ba 01 00 00 00 be 03 00 00 00 e8 68 2d a0 ff 48 8b 83 10 03 00 00 48 8b 80 88 00 00 00 48 85 c0 74 12 <48> 8b 80 88 02 00 00 48 85 c0 74 06 49 8b 7d
RIP [<ffffffff816c296b>] dvb_frontend_release+0xcb/0x120
[mchehab+samsung@kernel.org: fix a Coding Style issue]
Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add missing 'inline' to fix this compiler warning:
In file included from drivers/media/common/b2c2/flexcop-fe-tuner.c:21:0:
drivers/media/dvb-frontends/lgdt330x.h:61:22: warning: 'lgdt330x_attach' defined but not used [-Wunused-function]
struct dvb_frontend *lgdt330x_attach(const struct lgdt330x_config *config,
^~~~~~~~~~~~~~~
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Suggested-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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When refactoring the Gen3 enablement series crop and compose handling
where broken. This went unnoticed but can result in writing out side the
capture buffer. Fix this by restoring the crop and compose to reflect
the format dimensions as we have not yet enabled the scaler for Gen3.
Fixes: 5e7c623632fcf8f5 ("media: rcar-vin: use different v4l2 operations in media controller mode")
Reported-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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lines for Gen3"
The offending commit was an attempt to fix the issue of writing outside
the capture buffer for VIN Gen3. Unfortunately it only fixed the symptom
of the problem to such a degree I could no longer reproduce it. Revert
the offending commit before a proper fix can be added in a follow-up
patch.
This reverts commit 015060cb7795eac34454696cc9c9f8b76926a401.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Trivial fix to spelling mistake in dprintk message text
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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cx231-417 uses kmalloc/kfree functions, so slab header needs to be
included in order to fix the following build errors:
drivers/media/usb/cx231xx/cx231xx-417.c: In function ‘cx231xx_bulk_copy’:
CC drivers/media/platform/qcom/venus/firmware.o
drivers/media/usb/cx231xx/cx231xx-417.c:1389:11: error: implicit declaration of function ‘kmalloc’; did you mean ‘vmalloc’? [-Werror=implicit-function-declaration]
buffer = kmalloc(buffer_size, GFP_ATOMIC);
^~~~~~~
vmalloc
drivers/media/usb/cx231xx/cx231xx-417.c:1389:9: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
buffer = kmalloc(buffer_size, GFP_ATOMIC);
^
drivers/media/usb/cx231xx/cx231xx-417.c:1400:2: error: implicit declaration of function ‘kfree’; did you mean ‘vfree’? [-Werror=implicit-function-declaration]
kfree(buffer);
^~~~~
vfree
drivers/media/usb/cx231xx/cx231xx-417.c: In function ‘mpeg_open’:
drivers/media/usb/cx231xx/cx231xx-417.c:1713:7: error: implicit declaration of function ‘kzalloc’; did you mean ‘vzalloc’? [-Werror=implicit-function-declaration]
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
^~~~~~~
vzalloc
drivers/media/usb/cx231xx/cx231xx-417.c:1713:5: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
^
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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If 'media_entity_pads_init()' fails, we must free the resources allocated
by 'v4l2_ctrl_handler_init()', as already done in the previous error
handling path.
'goto' the right label to fix it.
Fixes: 9ac0038db9a7 ("media: i2c: Add TDA1997x HDMI receiver driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Returning -1 (-EPERM) is not appropriate here, go with -EIO.
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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These two statements are not errors, reduce to appropriate level.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Trivial fix to spelling mistake in dev_err message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Document what these two register calls are doing.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Include some additional useful registers in the output.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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This bug affects all of Hauppauge QuadHD boards when used on all Ryzen
platforms and some XEON platforms. On these platforms it is possible to
error out the RiSC engine and cause it to stall, whereafter the only
way to reset the board to a working state is to reboot.
This is the fatal condition with current driver:
[ 255.663598] cx23885: cx23885[0]: mpeg risc op code error
[ 255.663607] cx23885: cx23885[0]: TS1 B - dma channel status dump
[ 255.663612] cx23885: cx23885[0]: cmds: init risc lo : 0xffe54000
[ 255.663615] cx23885: cx23885[0]: cmds: init risc hi : 0x00000000
[ 255.663619] cx23885: cx23885[0]: cmds: cdt base : 0x00010870
[ 255.663622] cx23885: cx23885[0]: cmds: cdt size : 0x0000000a
[ 255.663625] cx23885: cx23885[0]: cmds: iq base : 0x00010630
[ 255.663629] cx23885: cx23885[0]: cmds: iq size : 0x00000010
[ 255.663632] cx23885: cx23885[0]: cmds: risc pc lo : 0xffe54018
[ 255.663636] cx23885: cx23885[0]: cmds: risc pc hi : 0x00000000
[ 255.663639] cx23885: cx23885[0]: cmds: iq wr ptr : 0x00004192
[ 255.663642] cx23885: cx23885[0]: cmds: iq rd ptr : 0x0000418c
[ 255.663645] cx23885: cx23885[0]: cmds: cdt current : 0x00010898
[ 255.663649] cx23885: cx23885[0]: cmds: pci target lo : 0xf85ca340
[ 255.663652] cx23885: cx23885[0]: cmds: pci target hi : 0x00000000
[ 255.663655] cx23885: cx23885[0]: cmds: line / byte : 0x000c0000
[ 255.663659] cx23885: cx23885[0]: risc0:
[ 255.663661] 0x1c0002f0 [ write sol eol count=752 ]
[ 255.663666] cx23885: cx23885[0]: risc1:
[ 255.663667] 0xf85ca050 [ INVALID sol 22 20 19 18 resync 13 count=80 ]
[ 255.663674] cx23885: cx23885[0]: risc2:
[ 255.663674] 0x00000000 [ INVALID count=0 ]
[ 255.663678] cx23885: cx23885[0]: risc3:
[ 255.663679] 0x1c0002f0 [ write sol eol count=752 ]
[ 255.663684] cx23885: cx23885[0]: (0x00010630) iq 0:
[ 255.663685] 0x1c0002f0 [ write sol eol count=752 ]
[ 255.663690] cx23885: cx23885[0]: iq 1: 0xf85ca630 [ arg #1 ]
[ 255.663693] cx23885: cx23885[0]: iq 2: 0x00000000 [ arg #2 ]
[ 255.663696] cx23885: cx23885[0]: (0x0001063c) iq 3:
[ 255.663697] 0x1c0002f0 [ write sol eol count=752 ]
[ 255.663702] cx23885: cx23885[0]: iq 4: 0xf85ca920 [ arg #1 ]
[ 255.663705] cx23885: cx23885[0]: iq 5: 0x00000000 [ arg #2 ]
[ 255.663709] cx23885: cx23885[0]: (0x00010648) iq 6:
[ 255.663709] 0xf85ca340 [ INVALID sol 22 20 19 18 resync 13 count=832 ]
[ 255.663716] cx23885: cx23885[0]: (0x0001064c) iq 7:
[ 255.663717] 0x00000000 [ INVALID count=0 ]
[ 255.663721] cx23885: cx23885[0]: (0x00010650) iq 8:
[ 255.663721] 0x00000000 [ INVALID count=0 ]
[ 255.663725] cx23885: cx23885[0]: (0x00010654) iq 9:
[ 255.663726] 0x1c0002f0 [ write sol eol count=752 ]
[ 255.663731] cx23885: cx23885[0]: iq a: 0xf85c9780 [ arg #1 ]
[ 255.663734] cx23885: cx23885[0]: iq b: 0x00000000 [ arg #2 ]
[ 255.663737] cx23885: cx23885[0]: (0x00010660) iq c:
[ 255.663738] 0x1c0002f0 [ write sol eol count=752 ]
[ 255.663743] cx23885: cx23885[0]: iq d: 0xf85c9a70 [ arg #1 ]
[ 255.663746] cx23885: cx23885[0]: iq e: 0x00000000 [ arg #2 ]
[ 255.663749] cx23885: cx23885[0]: (0x0001066c) iq f:
[ 255.663750] 0x1c0002f0 [ write sol eol count=752 ]
[ 255.663755] cx23885: cx23885[0]: iq 10: 0xf4fa2920 [ arg #1 ]
[ 255.663758] cx23885: cx23885[0]: iq 11: 0x00000000 [ arg #2 ]
[ 255.663759] cx23885: cx23885[0]: fifo: 0x00005000 -> 0x6000
[ 255.663760] cx23885: cx23885[0]: ctrl: 0x00010630 -> 0x10690
[ 255.663764] cx23885: cx23885[0]: ptr1_reg: 0x00005980
[ 255.663767] cx23885: cx23885[0]: ptr2_reg: 0x000108a8
[ 255.663770] cx23885: cx23885[0]: cnt1_reg: 0x0000000b
[ 255.663773] cx23885: cx23885[0]: cnt2_reg: 0x00000003
Included is checks of the TC_REQ and TC_REQ_SET registers during states
of board initialization, reset, DMA start, and DMA stop. If both registers
are set, this indicates a stall in the RiSC engine, at which point the
bridge error is cleared.
A small delay is introduced in stop_dma as well, to allow transfers in
progress to finish.
After application all models work on Ryzen, occasionally yielding:
cx23885_clear_bridge_error: dma in progress detected 0x00000001 0x00000001, clearing
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
[hansverk@cisco.com: fix compiler warning of unused 'reg' variable]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Currently mask is read for pci_status/ts1_status/ts2_status, but
otherwise ignored. The masks are now used to determine whether
action is warranted.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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On Ryzen systems interrupts are occasionally missed:
cx23885: cx23885_wakeup: [ffff99b384b83c00/28] wakeup reg=5406 buf=5405
cx23885: cx23885_wakeup: [ffff99b40bf79400/31] wakeup reg=9537 buf=9536
This patch loops up to five times on wakeup, marking any buffers
found done.
Since the count register is u16, but the vb2 counter is u32, some modulo
arithmetic is used to accommodate wraparound and ensure current active
buffer is the buffer expected.
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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This change removes IOCTL_INFO_STD and adds stub functions where
needed using the DEFINE_V4L_STUB_FUNC macro. This fixes indirect call
mismatches with Control-Flow Integrity, caused by calling standard
ioctls using a function pointer that doesn't match the function type.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Instead of putting V4L2_CAP_STREAMING and V4L2_CAP_READWRITE
everywhere, set device_caps earlier with these values.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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To better organize the code we concentrate the setting of
V4L2_CAP_STREAMING in one place.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add the missing clk_disable_unprepare() before return from
jpu_open() in the software reset error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Add R-Mobile A1 R8A7740 SoC to the list of compatible values for the CEU
unit.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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There are two places pointing to an unexisting "m.chehab@kernel.org"
email. I never had such email, so, I'm unsure how it ends there.
Anyway, it is plain wrong.
While here, use my canonical e-mail on a bunch of places that
are pointing to another e-mail. The idea is that, from now on,
all places will be pointing to the same SMTP server.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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Linux 4.17-rc4
* tag 'v4.17-rc4': (920 commits)
Linux 4.17-rc4
KVM: x86: remove APIC Timer periodic/oneshot spikes
genksyms: fix typo in parse.tab.{c,h} generation rules
kbuild: replace hardcoded bison in cmd_bison_h with $(YACC)
gcc-plugins: fix build condition of SANCOV plugin
MAINTAINERS: Update Kbuild entry with a few paths
Revert "usb: host: ehci: Use dma_pool_zalloc()"
platform/x86: Kconfig: Fix dell-laptop dependency chain.
platform/x86: asus-wireless: Fix NULL pointer dereference
arm64: vgic-v2: Fix proxying of cpuif access
KVM: arm/arm64: vgic_init: Cleanup reference to process_maintenance
KVM: arm64: Fix order of vcpu_write_sys_reg() arguments
MAINTAINERS & files: Canonize the e-mails I use at files
media: imx-media-csi: Fix inconsistent IS_ERR and PTR_ERR
tools: power/acpi, revert to LD = gcc
bdi: Fix oops in wb_workfn()
RDMA/cma: Do not query GID during QP state transition to RTR
IB/mlx4: Fix integer overflow when calculating optimal MTT size
IB/hfi1: Fix memory leak in exception path in get_irq_affinity()
IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure
...
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Right now, there are two mutexes serializing r/w ops: one "generic"
and another one specifically for stream on/off.
Clean it a little bit, getting rid of one of the mutexes.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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As warned by gcc:
drivers/media/tuners/qm1d1b0004.c:62:39: warning: 'default_cfg' defined but not used [-Wunused-const-variable=]
static const struct qm1d1b0004_config default_cfg = {
^~~~~~~~~~~
This var is currently unused. So, comment it out.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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The isp stat driver allocates memory for DMA and uses GFP_DMA flag for
dev_alloc_coherent. The flag is no longer needed as the DMA mask is used
for the purpose. Remove it.
Reported-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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 omap3isp driver checked whether the second argument (the new
configuration) to the ISP statistics is NULL. This is the pointer to the
user-given argument and is never NULL. Remove the check.
Reported-by: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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C libraries with 64-bit time_t use an incompatible format for
struct omap3isp_stat_data. This changes the kernel code to
support either version, by moving over the normal handling
to the 64-bit variant, and adding compatiblity code to handle
the old binary format with the existing ioctl command code.
Fortunately, the command code includes the size of the structure,
so the difference gets handled automatically. In the process of
eliminating the references to 'struct timeval' from the kernel,
I also change the way the timestamp is generated internally,
basically by open-coding the v4l2_get_timestamp() call.
[Sakari Ailus: Alphabetical order of headers, clean up compat code]
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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This change fixes function types for media device ioctls to avoid
indirect call mismatches with Control-Flow Integrity checking.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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This reverts 8b0e195314fa, because media-tree drivers should use the
API functions to initialize variables of type ktime_t.
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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In commit 20a63349b142 a new variable ktime_t delay has been added.
We decided to use the API functions to initialize ktime_t variables
within media-tree. Thus variable delay needs to be initialized with
ktime_set() instead of setting it directly.
Signed-off-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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