- 17 Apr, 2017 17 commits
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simran singhal authored
Some functions like kmalloc/kzalloc return NULL on failure. When NULL represents failure, !x is commonly used. This was done using Coccinelle: @@ expression *e; identifier l1; @@ e = \(kmalloc\|kzalloc\|kcalloc\|devm_kzalloc\)(...); ... - e == NULL + !e Signed-off-by:
simran singhal <singhalsimran0@gmail.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Sakari Ailus authored
The refcount field was added to the struct but it was not properly documented. Document it. [mchehab@s-opensource.com: fix a merge conflict] Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
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Sakari Ailus authored
Update the CSI-2 bus documentation to tell that the LP-11 mode is not mandatory as there are transmitters that cannot be explicitly set to LP-11 mode. Instead, say that this what the transmitter drivers shall do if possible. Signed-off-by:
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Alexandre-Xavier Labonté-Lamoureux authored
Add new usbid eb1a:5051 for the Ion Video 2 PC MKII, Startech svid2usb23 and Raygo R12-41373. Signed-off-by:
Alexandre-Xavier Labonté-Lamoureux <alexandrexavier@live.ca> Signed-off-by:
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Christophe JAILLET authored
'usb_free_urb(urb)' is a no-op, because urb is known to be NULL. It is likelly that releasing resources allocated by 'tm6000_alloc_urb_buffers()' just a few lines above is expected here. This has been spotted by the following coccinelle script: @@ expression ret, x, e; identifier f; @@ * if (x == NULL) { ... when != x = e; ( * f(<+...x...+>); | * ret = f(<+...x...+>); ) ... } Signed-off-by:Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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Javier Martinez Canillas authored
The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by:
Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by:
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Gustavo A. R. Silva authored
Remove dead code. The following line of code is never reached: return SAA_OK; Addresses-Coverity-ID: 114283 Signed-off-by:
Gustavo A. R. Silva <garsilva@embeddedor.com> Reviewed-by:
Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by:
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Gustavo A. R. Silva authored
Remove unnecessary variable 'loop'. Signed-off-by:
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Javier Martinez Canillas authored
The I2C core always reports a MODALIAS of the form i2c:<foo> even if the device was registered via OF, this means that exporting the OF device ID table device aliases in the module is not needed. But in order to change how the core reports modaliases to user-space, it's better to export it. Before this patch: $ modinfo drivers/media/i2c/et8ek8/et8ek8.ko | grep alias alias: i2c:et8ek8 After this patch: $ modinfo drivers/media/i2c/et8ek8/et8ek8.ko | grep alias alias: i2c:et8ek8 alias: of:N*T*Ctoshiba,et8ek8C* alias: of:N*T*Ctoshiba,et8ek8 Signed-off-by:
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Bhumika Goyal authored
Declare stv0299_config structures as const as they are only passed as an argument to the function dvb_attach. dvb_attach calls its first argument on the rest of its arguments. The first argument of dvb_attach in the changed cases is stv0299_attach and the parameter of this function to which the object references are passed is of type const. So, stv0299_config structures having this property can be made const. First line shows the file size before patching and second one shows size after patching. text data bss dec hex filename 9572 926 40 10538 292a media/pci/dm1105/dm1105.o 9636 862 40 10538 292a media/pci/dm1105/dm1105.o 15133 5408 0 20541 503d media/pci/ttpci/budget-av.o 15389 5152 0 20541 503d media/pci/ttpci/budget-av.o 15703 2326 36 18065 4691 media/pci/ttpci/budget-ci.o 15767 2262 36 18065 4691 media/pci/ttpci/budget-ci.o 10555 1918 4 12477 30bd drivers/media/pci/ttpci/budget.o 10683 1822 4 12509 30dd drivers/media/pci/ttpci/budget.o Signed-off-by:
Bhumika Goyal <bhumirks@gmail.com> Signed-off-by:
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Bhumika Goyal authored
Declare mb86a16_config structure as const as it is either passed as an argument to the function dvb_attach or is dereferenced. dvb_attach calls its first argument on the rest of its arguments. The first argument of dvb_attach in the changed case is mb86a16_attach and the parameter of this function to which the object reference is passed is of type const. So, mb86a16_config structures having this property can be made const. Signed-off-by:
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Bhumika Goyal authored
Declare mb86a16_config structure as const as it is only passed as an argument to the function dvb_attach. dvb_attach calls its first argument on the rest of its arguments. The first argument of dvb_attach in the changed case is mb86a16_attach and the parameter of this function to which the object reference is passed is of type const. So, mb86a16_config structures having this property can be made const. Signed-off-by:
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Bhumika Goyal authored
Declare nxt200x_config structures as const as they are only passed as an argument to the function dvb_attach. dvb_attach calls its first argument on the rest of its arguments. The first argument of dvb_attach in the changed cases is nxt200x_attach and the parameter of this function to which the object references are passed is of type const. So, nxt200x_config structures having this property can be made const. File size before: text data bss dec hex filename 21320 3776 16 25112 6218 saa7134/saa7134-dvb.o File size after: text data bss dec hex filename 21384 3744 16 25144 6238 saa7134/saa7134-dvb.o Signed-off-by:
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Bhumika Goyal authored
Declare nxt200x_config structure as const as it is only passed as an argument to the function dvb_attach. dvb_attach calls its first argument on the rest of its arguments. The first argument of dvb_attach in the changed case is nxt200x_attach and the parameter of this function to which the object reference is passed is of type const. So, nxt200x_config structures having this property can be made const. File size before: text data bss dec hex filename 7566 568 0 8134 1fc6 common/b2c2/flexcop-fe-tuner.o File size after: text data bss dec hex filename 7582 536 0 8118 1fb6 common/b2c2/flexcop-fe-tuner.o Signed-off-by:
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Ben Hutchings authored
dvb-usb-dibusb-mc-common is licensed under GPLv2, and if we don't say so then it won't even load since it needs a GPL-only symbol. Fixes: e91455a1 ("[media] dvb-usb: split out common parts of dibusb") Reported-by:
Dominique Dumont <dod@debian.org> Cc: stable@vger.kernel.org # 4.9+ Signed-off-by:
Ben Hutchings <ben@decadent.org.uk> Signed-off-by:
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Colin Ian King authored
There is an exit path where rx is kfree'd on put_ir_rx and then a jump to label out_put_xx will again kfree it with another call to put_ir_rx. Fix this by adding a new label that avoids this 2nd call to put_ir_rx for this specific case. Detected with CoverityScan, CID#145119 ("Use after free") Signed-off-by:Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Joe Perches authored
To enable eventual removal of pr_warning This makes pr_warn use consistent for drivers/media Prior to this patch, there was 1 use of pr_warning and 310 uses of pr_warn in drivers/media Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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- 15 Apr, 2017 23 commits
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Helen Koike authored
First version of the Virtual Media Controller. Add a simple version of the core of the driver, the capture and sensor nodes in the topology, generating a grey image in a hardcoded format. Signed-off-by:
Helen Koike <helen.koike@collabora.com> Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> [hans.verkuil@cisco.com: fix small typo in Kconfig] Signed-off-by:
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Ramiro Oliveira authored
The OV5647 sensor from Omnivision supports up to 2592x1944 @ 15 fps, RAW 8 and RAW 10 output formats, and MIPI CSI-2 interface. The driver adds support for 640x480 RAW 8. Signed-off-by:
Ramiro Oliveira <roliveir@synopsys.com> Acked-by:
Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Signed-off-by:
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Ramiro Oliveira authored
Create device tree bindings documentation. Signed-off-by:
Rob Herring <robh@kernel.org> Reviewed-by:
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Todor Tomov authored
The ov5645 sensor from Omnivision supports up to 2592x1944 and CSI2 interface. The driver adds support for the following modes: - 1280x960 - 1920x1080 - 2592x1944 Output format is packed 8bit UYVY. Signed-off-by:
Todor Tomov <todor.tomov@linaro.org> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by:
Hans Verkuil <hansverk@cisco.com> Signed-off-by:
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Todor Tomov authored
Add the document for ov5645 device tree binding. Signed-off-by:
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Hans Verkuil authored
The two histogram controls will modify the layout of the metadata, so this flag should be set. Signed-off-by:
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Hans Verkuil authored
Explain when the V4L2_CTRL_FLAG_MODIFY_LAYOUT and V4L2_CTRL_FLAG_MODIFY_GRABBER flags should be used. Signed-off-by:
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Hans Verkuil authored
The rotate control will modify the layout by definition. Always set this flag. Signed-off-by:
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Hans Verkuil authored
Add new flag to indicate that changing this control will change the buffer/mediabus layout as well. Signed-off-by:
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Hans Verkuil authored
Document this new control flag. Signed-off-by:
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Niklas Söderlund authored
The HGT is a Histogram Generator Two-Dimensions. It computes a weighted frequency histograms for hue and saturation areas over a configurable region of the image with optional subsampling. Signed-off-by:
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by:
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Niklas Söderlund authored
The format is used on the R-Car VSP1 video queues that carry 2-D histogram statistics data. Signed-off-by:
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Laurent Pinchart authored
The HGO is a Histogram Generator One-Dimension. It computes per-channel histograms over a configurable region of the image with optional subsampling. Signed-off-by:
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Laurent Pinchart authored
The format is used on the R-Car VSP1 video queues that carry 1-D histogram statistics data. Signed-off-by:
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Laurent Pinchart authored
The addresses are incorrect, fix them. Signed-off-by:
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Laurent Pinchart authored
Histogram generators are single-pad entities that branch as leaf nodes at any point in the pipeline. Make sure that pipeline traversal and routing configuration support them correctly. Support for the actual HGO and HGT operation will come later. Signed-off-by:
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Laurent Pinchart authored
The histogram common code will be used to implement support for both the HGO and HGT histogram computation engines. Signed-off-by:
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Laurent Pinchart authored
The metadata buffer type is used to transfer metadata between userspace and kernelspace through a V4L2 buffers queue. It comes with a new metadata capture capability and format description. Signed-off-by:
Guennadi Liakhovetski <guennadi.liakhovetski@intel.com> Acked-by:
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Laurent Pinchart authored
Some WPF instances, on Gen3 devices, can perform 90° rotation when writing frames to memory. Implement support for this using the V4L2_CID_ROTATE control. Signed-off-by:
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Laurent Pinchart authored
V4L2 exposes parameters that influence buffers sizes through the format ioctls (VIDIOC_G_FMT, VIDIOC_TRY_FMT, VIDIOC_S_FMT, and possibly VIDIOC_G_SELECTION and VIDIOC_S_SELECTION). Other parameters not part of the format structure may also influence buffer sizes or buffer layout in general. One existing such parameter is rotation, which is implemented by the V4L2_CID_ROTATE control and thus exposed through the V4L2 control ioctls. The interaction between those parameters and buffers is currently only partially specified by the V4L2 API. In particular interactions between controls and buffers isn't specified at all. The behaviour of the VIDIOC_S_FMT and VIDIOC_S_SELECTION ioctls when buffers are allocated is also not fully specified. This patch clearly defines and documents the interactions between formats, selections, controls and buffers. The preparatory discussions for the documentation change considered completely disallowing controls that change the buffer size or layout, in favour of extending the format API with a new ioctl that would bundle those controls with format information. The idea has been rejected, as this would essentially be a restricted version of the upcoming request API that wouldn't bring any additional value. Another option we have considered was to mandate the use of the request API to modify controls that influence buffer size or layout. This has also been rejected on the grounds that requiring the request API to change rotation even when streaming is stopped would significantly complicate implementation of drivers and usage of the V4L2 API for applications. Applications will however be required to use the upcoming request API to change at runtime formats or controls that influence the buffer size or layout, because of the need to synchronize buffers with the formats and controls. Otherwise there would be no way to interpret the content of a buffer correctly. Signed-off-by:
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Hans Verkuil authored
Simplify ov2640_set_params and ov2640_set_fmt. Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Hans Verkuil authored
Simplify ov9740_s_fmt. Signed-off-by:
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Hans Verkuil authored
Simplify ov9640_s_fmt and ov9640_set_fmt Signed-off-by:
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