It seems that the return value of usb_ifnum_to_if() can be NULL and
needs to be checked.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
For memory allocation functions that fail with a NULL return value, it
is preferred to use the (!x) test in place of (x == NULL).
Changes in atomisp2/css2400/sh_css.c were done by hand.
Done with the help of the following cocci script:
@@
type T;
T* p;
statement s,s1;
@@
p =
\(devm_kzalloc\|devm_ioremap\|usb_alloc_urb\|alloc_netdev\|dev_alloc_skb\|
kmalloc\|kmalloc_array\|kzalloc\|kcalloc\|kmem_cache_alloc\|kmem_cache_zalloc\|
kmem_cache_alloc_node\|kmalloc_node\|kzalloc_node\|devm_kzalloc\)(...)
...when != p
if (
- p == NULL
+ !p
) s
else s1
--
Changes in v3:
Rebase changes over atomisp-next branch of the media tree
Changes in atomisp2/css2400/sh_css.c were done by hand, the above script
was not able to match the pattern if (a->b != null).
Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The TC358743 does not support more than 4 data lanes. Check that the
lane count is valid.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
When I was supporting Rpi Camera Module on the ASUS Tinker board,
I found this driver have some issues with rockchip's mipi-csi driver.
It didn't place clock lane in LP-11 state before performing
D-PHY initialisation.
>From our experience, on some OV sensors,
LP-11 state is not achieved while BIT(5)-0x4800 is cleared.
So let's set BIT(5) and BIT(0) both while not streaming, in order to
coax the clock lane into LP-11 state.
0x4800 : MIPI CTRL 00
BIT(5) : clock lane gate enable
0: continuous
1: none-continuous
BIT(0) : manually set clock lane
0: Not used
1: used
Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
Reviewed-by: Luis Oliveira <lolivei@synopsys.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add the ov7670_s_power function which is responsible for
manipulating the power dowm mode through the PWDN pin and the reset
operation through the RESET pin, and keep it powered at all times.
[sakari.ailus@linux.intel.com: set pwdn_gpio direction only once]
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add the get_fmt callback, also enable V4L2_SUBDEV_FL_HAS_DEVNODE flag
to make this subdev has device node.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add the media entity pads initialization.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This driver adds support for the Tegra CEC IP. It is based on the
NVIDIA drivers/misc/tegra-cec driver in their 3.10 kernel.
This has been converted to the CEC framework and cleaned up.
Tested with my Jetson TK1 board. It has also been tested with the
Tegra X1 in an embedded product.
Note of warning for the Tegra X2: this SoC supports two HDMI outputs,
but only one CEC adapter and the CEC bus is shared between the
two outputs. This is a design mistake and the CEC adapter can
control only one HDMI output. Never hook up both HDMI outputs
to the CEC bus in a hardware design: this is illegal as per the
CEC specification.
The CEC bus can be shared between multiple inputs and zero or one
outputs, but not between multiple outputs.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This documents the binding for the Tegra CEC module.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Using the ARRAY_SIZE macro improves the readability of the code. Also,
it is useless to use a variable to store this constant calculated at
compile time.
Found with Coccinelle with the following semantic patch:
@r depends on (org || report)@
type T;
T[] E;
position p;
@@
(
(sizeof(E)@p /sizeof(*E))
|
(sizeof(E)@p /sizeof(E[...]))
|
(sizeof(E)@p /sizeof(T))
)
Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The functions __bo_alloc, __bo_search_and_remove_from_free_rbtree,
__bo_search_by_addr, __bo_search_by_addr_in_range, __bo_break_up and
__bo_merge are local to the source and do not need to be in the global
scope, so make them static.
Cleans up sparse warnings:
warning: symbol '__bo_alloc' was not declared. Should it be static?
warning: symbol '__bo_search_and_remove_from_free_rbtree' was not declared. Should it be static?
warning: symbol '__bo_search_by_addr' was not declared. Should it be static?
warning: symbol '__bo_search_by_addr_in_range' was not declared. Should it be static?
warning: symbol '__bo_break_up' was not declared. Should it be static?
warning: symbol '__bo_merge' was not declared. Should it be static?
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
There was no specific item regarding what should be done to sensor, lens
and flash drivers. Add one, to replace the vague item denoting support
only to particular sensor, lens and flash devices.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
By adding the "atomisp-" prefix to module names (and "ATOMISP_" to Kconfig
options), the staging drivers for e.g. sensors are labelled as being
specific to atomisp, which they effectively are.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add the maintainers entry to the atomisp staging media driver.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The imx274 is a Sony CMOS image sensor that has 1/2.5 image size.
It supports up to 3840x2160 (4K) 60fps, 1080p 120fps. The interface
is 4-lane MIPI CSI-2 running at 1.44Gbps each.
This driver has been tested on Xilinx ZCU102 platform with a Leopard
LI-IMX274MIPI-FMC camera board.
Support for the following features:
-Resolutions: 3840x2160, 1920x1080, 1280x720
-Frame rate: 3840x2160 : 5 – 60fps
1920x1080 : 5 – 120fps
1280x720 : 5 – 120fps
-Exposure time: 16 – (frame interval) micro-seconds
-Gain: 1x - 180x
-VFLIP: enable/disabledrivers/media/i2c/imx274.c
-Test pattern: 12 test patterns
Signed-off-by: Leon Luo <leonl@leopardimaging.com>
Tested-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The binding file for imx274 CMOS sensor V4l2 driver
Signed-off-by: Leon Luo <leonl@leopardimaging.com>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The TC358743 is an HDMI to MIPI CSI2-2 bridge.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
When using VDIC with CSI1, make sure to select the correct CSI in
IPU_CONF.
Fixes: f0d9c8924e ("[media] media: imx: Add IC subdev drivers")
Suggested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
We can remove the check for if "state->cec_adap" is NULL. The
cec_allocate_adapter() function never returns NULL and also we verified
that "state->cec_adap" is an error pointer.
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>
Make vb2_ops const as they are only stored in the const field of a
vb2_queue structure. Make the declarations const too.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Make vb2_ops const as they are only stored in the const field of a
vb2_queue structure. Make the declarations const too.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Make this const as it is only used in a copy operation in the file
referencing it. Make the declaration const too.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Make this const as it is only passed to the const argument of the
function videobuf_queue_sg_init in the file referencing it.
Also, make the declaration in the header const.
Structure found using Coccinelle and changes done by hand.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
kasprintf() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
It should be "LP-11".
Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
- Delete seven error messages for a failed memory allocation
- Adjust seven checks for null pointers
- Use common error handling code in tm6000_usb_probe()
- Adjust jump targets so that the function "kfree" will be always called
with a non-null pointer.
- Delete an initialisation for the local variable "dev"
which became unnecessary with this refactoring.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The kAPI cec-pin.h header also defined data structures that did
not belong here but were private to the CEC core code.
Split that part off into a cec-pin-priv.h header.
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This addresses the wrong behavior of decoder stop command by
rewriting it. These new implementation enqueue an empty buffer
on the decoder input buffer queue to signal end-of-stream. The
client should stop queuing buffers on the V4L2 Output queue
and continue queuing/dequeuing buffers on Capture queue. This
process will continue until the client receives a buffer with
V4L2_BUF_FLAG_LAST flag raised, which means that this is last
decoded buffer with data.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org> # for v4.13 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
In case of error, the function platform_device_register_data() returns
ERR_PTR() and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This fixes wrongly filled bytesused field of v4l2_plane structure
by include data_offset in the plane, Also fill data_offset and
bytesused for capture type of buffers only.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org> # for v4.13 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
To improve the readability of code, split the format array into two,
one for the format description, other for the register configuration.
Meanwhile, add the flag member to indicate the format can be achieved
from the sensor or be produced by the controller, and rename members
related to the register configuration.
Also add more formats support: GREY, ARGB444, ARGB555 and ARGB32.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Remove the memeber *config from the isc_subdev_entity struct,
the member is useless afterward.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
To meet the relationship, enable the HCLOCK and ispck during the
device probe, "isc_pck frequency is less than or equal to isc_ispck,
and isc_ispck is greater than or equal to HCLOCK."
Meanwhile, call the pm_runtime_enable() in the right place.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
A software write operation to the ISC_CLKEN or ISC_CLKDIS register
requires double clock domain synchronization and is not permitted
when the ISC_SR.SIP is asserted. So add the .prepare and .unprepare
ops to make sure the ISC_CLKSR.SIP is unasserted before the write
operation to the ISC_CLKEN or ISC_CLKDIS register.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Add the spin lock for the clock enable and disable operations.
Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This change will fix an issue with dma_free size found with
DMA API debug enabled.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org> # for v4.13 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Instead of relying on a mix of runtime PM and the s_power() callback, drop
the s_power() callback altogether and use runtime PM solely.
As device access is required during device power-on and power-off
sequences, runtime PM alone cannot tell whether the device is available.
Thus the "active" field is introduced in struct smiapp_sensor to tell
whether it is safe to write to the device.
Consequently there is no need to power on the device whenever a file
handle is open. This functionality is removed as well. The user may still
control the device power management through sysfs. Autosuspend remains
enabled, with 1 s delay.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Use unlocked __v4l2_ctrl_handler_setup() in order to make the
control setup atomic.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* commit '3728e6a255b5': (904 commits)
Linux 4.14-rc5
x86/microcode: Do the family check first
locking/lockdep: Disable cross-release features for now
x86/mm: Flush more aggressively in lazy TLB mode
mm, swap: use page-cluster as max window of VMA based swap readahead
mm: page_vma_mapped: ensure pmd is loaded with READ_ONCE outside of lock
kmemleak: clear stale pointers from task stacks
fs/binfmt_misc.c: node could be NULL when evicting inode
fs/mpage.c: fix mpage_writepage() for pages with buffers
linux/kernel.h: add/correct kernel-doc notation
tty: fall back to N_NULL if switching to N_TTY fails during hangup
Revert "vmalloc: back off when the current task is killed"
mm/cma.c: take __GFP_NOWARN into account in cma_alloc()
scripts/kallsyms.c: ignore symbol type 'n'
userfaultfd: selftest: exercise -EEXIST only in background transfer
mm: only display online cpus of the numa node
mm: remove unnecessary WARN_ONCE in page_vma_mapped_walk().
mm/mempolicy: fix NUMA_INTERLEAVE_HIT counter
include/linux/of.h: provide of_n_{addr,size}_cells wrappers for !CONFIG_OF
mm/madvise.c: add description for MADV_WIPEONFORK and MADV_KEEPONFORK
...
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Merge tag 'media/v4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"Core fixes:
- cec: Respond to unregistered initiators, when applicable
- dvb_frontend: only use kref after initialized
Driver-specific fixes:
- qcom, camss: Make function vfe_set_selection static
- qcom: VIDEO_QCOM_CAMSS should depend on HAS_DMA
- s5p-cec: add NACK detection support
- media: staging/imx: Fix uninitialized variable warning
- dib3000mc: i2c transfers over usb cannot be done from stack
- venus: init registered list on streamoff"
* tag 'media/v4.14-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: dvb_frontend: only use kref after initialized
media: platform: VIDEO_QCOM_CAMSS should depend on HAS_DMA
media: cec: Respond to unregistered initiators, when applicable
media: s5p-cec: add NACK detection support
media: staging/imx: Fix uninitialized variable warning
media: qcom: camss: Make function vfe_set_selection static
media: venus: init registered list on streamoff
media: dvb: i2c transfers over usb cannot be done from stack
Most devices do not support lane reordering and in many cases the
documentation of the data-lanes property is incomplete for such devices.
Document that in case the lane reordering isn't supported, monotonically
incremented values from 0 or 1 shall be used.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Port and endpoint numbering has been omitted in DT binding documentation
for a large number of devices. Also common properties the device uses have
been missed in binding documentation. Make it explicit that these things
need to be documented.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The script “checkpatch.pl” pointed information out like the following.
Comparison to NULL could be written...
Thus fix the affected source code places.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Omit an extra message for a memory allocation failure in s5p_mfc_probe()
function. This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
The hardware rotation limits of gsc depends on SOC (Exynos
5250/5420/5433). Distinguish them and add them to the driver data.
[s.nawrocki@samsung.com: corrected num_entities in 5420 variant data]
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Exynos 5250 and 5420 have different hardware rotation limits.
Since we have to distinguish between these two, we add different
compatible: samsung,exynos5250-gsc and samsung,exynos5420-gsc.
Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
