- 16 Nov, 2020 40 commits
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Krzysztof Kozlowski authored
The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. Signed-off-by:Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Krzysztof Kozlowski authored
The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. Signed-off-by: -
Krzysztof Kozlowski authored
The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. Signed-off-by: -
Krzysztof Kozlowski authored
The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. Signed-off-by: -
Krzysztof Kozlowski authored
If driver is built without ACPI, the struct acpi_device_id won't be used: drivers/media/i2c/imx355.c:1836:36: warning: 'imx355_acpi_ids' defined but not used [-Wunused-const-variable=] [Sakari Ailus: Added a space before __maybe_unused] Signed-off-by: -
Krzysztof Kozlowski authored
The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. Signed-off-by: -
Krzysztof Kozlowski authored
If driver is built without ACPI, the struct acpi_device_id won't be used: drivers/media/i2c/imx319.c:2536:36: warning: 'imx319_acpi_ids' defined but not used [-Wunused-const-variable=] Signed-off-by: -
Krzysztof Kozlowski authored
The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. Signed-off-by: -
Krzysztof Kozlowski authored
The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. White at it, use 'dev' directly instead of 'imx290->dev'. Signed-off-by: -
Krzysztof Kozlowski authored
The pointer to 'struct v4l2_subdev' is stored in drvdata via v4l2_i2c_subdev_init() so there is no point of a dance like: struct i2c_client *client = to_i2c_client(struct device *dev) struct v4l2_subdev *sd = i2c_get_clientdata(client); This allows to remove local variable 'client' and few pointer dereferences. Signed-off-by: -
Lad Prabhakar authored
Return -EINVAL if invalid bus-type is detected while parsing endpoints. Fixes: 26c1126c ("media: v4l: fwnode: Use media bus type for bus parser selection") Signed-off-by:
Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Signed-off-by:
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Colin Ian King authored
Don't populate the const array dev_names on the stack but instead it static. Makes the object code smaller by 15 bytes. Before: text data bss dec hex filename 17091 2648 64 19803 4d5b media/rkisp1/rkisp1-resizer.o After: text data bss dec hex filename 17012 2712 64 19788 4d4c media/rkisp1/rkisp1-resizer.o (gcc version 10.2.0) Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by:
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Robert Foss authored
I would like to contribute some of my time to co-maintain the CAMSS driver. I'm currently working to extend CAMSS to new hardware platforms. Signed-off-by:
Robert Foss <robert.foss@linaro.org> Signed-off-by:
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Tom Rix authored
A break is not needed if it is preceded by a return Signed-off-by:
Tom Rix <trix@redhat.com> Signed-off-by:
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Deepak R Varma authored
Use of variable vc_num is unnecessary here as it is used only once. Instead, the value can directly be used in place of the variable. Signed-off-by:
Deepak R Varma <mh12gx2825@gmail.com> Acked-by:
Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by:
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Deepak R Varma authored
The virtual channel is always treated as 0 once the stream enters CSI's. Commented code in the "#if 0" can be safely removed as it will not serve any purpose in future. Issue reported by checkpatch script. Signed-off-by:
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Niklas Söderlund authored
Add support for suspend and resume by stopping and starting the video pipeline while still retaining all buffers given to the driver by user-space and internally allocated ones, this gives the application a seamless experience. Buffers are never returned to user-space unprocessed so user-space don't notice when suspending. When resuming the driver restarts the capture session using the internal scratch buffer, this happens before user-space is unfrozen, this leads to speedy response times once the application resumes its execution. As the entire pipeline is stopped on suspend all subdevices in use are also stopped, and if they enter a shutdown state when not streaming (such as the R-Car CSI-2 driver) they too will be suspended and resumed in sync with the VIN driver. To be able to do keep track of which VINs should be resumed a new internal state SUSPENDED is added to recode this. Signed-off-by:
Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by:
Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by:
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Niklas Söderlund authored
To support suspend and resume the ability to start and stop the hardware needs to be available internally in the driver. Currently this code is in the start and stop callbacks of the vb2_ops struct. In these callbacks the code is intertwined with buffer allocation and freeing. Prepare for suspend and resume support by breaking out the hardware start/stop code into new methods. Signed-off-by:
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Niklas Söderlund authored
In preparation of suspend/resume support cache the chsel value when written to the register so it can be restored on resume if needed. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
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Niklas Söderlund authored
When returning buffers to user-space it's no longer needed to examine the buffers given to hardware as recent changes guarantees the only buffer present in the hardware registers when the driver is not in the running state is the scratch buffer. Remove the special case and rename the function to better describe it now only deals with buffers queued to the driver but not yet recorded in the hardware registers. Signed-off-by:
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Niklas Söderlund authored
In its early stages the VIN driver did not use an internal scratch buffer. This leads to a unnecessary complex start and stop behavior, specially for TB/BT. The driver now always allocates a scratch buffer to deal with buffer under-runs, use the scratch buffer to also simplify starting and stopping. When capture is starting use the scratch buffer instead of a user-space buffers while syncing the driver with the hardware state. This allows the driver to know that no user-space buffer is given to the hardware before the running state is reached. When capture is stopping use the scratch buffer instead of leaving the user-space buffers in place and add a check that all user-space buffers are processed by the hardware before transitioning from the stopping to stopped state. This allows the driver to know all user-space buffers given to the hardware are fully processed. This change in itself does not improve the driver much but it paves the way for future simplifications and enhancements. One direct improvement of this change is that TB/BT buffers returned to user-space while stopping will always contain both fields, that was not guaranteed before. Signed-off-by:
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Thomas Gleixner authored
The memory allocations in cx231xx_init_*() happen all in task context with GFP_KERNEL. Therefore a dev_err() trying to deduce whether this is called from task or interrupt context is pretty useless. Remove these historical leftovers. Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Thomas Gleixner authored
The memory allocations in au0828_init_isoc() happen all in task context with GFP_KERNEL. Therefore a printk() trying to deduce whether this is called from task or interrupt context is pretty useless. Convert it to au0828_isocdbg() as the other one in that function and for completeness sake add one for the URB allocation as well. Signed-off-by:
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Thomas Gleixner authored
None of these BUG_ON()'s is justified. BUG_ON() should only be used when there is really no way to survive. If at all these could be replaced by lockdep_assert_preemption_enabled() to cover all invalid caller context and not just those covered by in_interrupt(). But all functions which are invoked from those places contain already debug mechanisms to catch wrong context, so having these extra checks is not having any advantage. Signed-off-by:
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Yu Kuai authored
mtk_vcodec_release_enc_pm() will be called in two places: a. mtk_vcodec_init_enc_pm() succeed while mtk_vcodec_probe() return error. b. mtk_vcodec_enc_remove(). In both cases put_device() call is needed, since of_find_device_by_node() was called in mtk_vcodec_init_enc_pm() previously. Thus add put_devices() call in mtk_vcodec_release_enc_pm() Signed-off-by:
Yu Kuai <yukuai3@huawei.com> Signed-off-by:
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Yu Kuai authored
if of_find_device_by_node() succeed, mtk_vcodec_init_enc_pm() doesn't have a corresponding put_device(). Thus add jump target to fix the exception handling for this function implementation. Fixes: 4e855a6e ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver") Signed-off-by:
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Yu Kuai authored
mtk_vcodec_release_dec_pm() will be called in two places: a. mtk_vcodec_init_dec_pm() succeed while mtk_vcodec_probe() return error. b. mtk_vcodec_dec_remove(). In both cases put_device() call is needed, since of_find_device_by_node() was called in mtk_vcodec_init_dec_pm() previously. Thus add put_devices() call in mtk_vcodec_release_dec_pm() Fixes: 590577a4 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Decoder Driver") Signed-off-by:
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Yu Kuai authored
if of_find_device_by_node() succeed, mtk_vcodec_init_dec_pm() doesn't have a corresponding put_device(). Thus add jump target to fix the exception handling for this function implementation. Fixes: 590577a4 ("[media] vcodec: mediatek: Add Mediatek V4L2 Video Decoder Driver") Signed-off-by:
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Yu Kuai authored
if of_find_device_by_node() succeeds, mtk_jpeg_clk_init() doesn't have a corresponding put_device(). Thus add put_device() to fix the exception handling for this function implementation. Fixes: 648372a8 ("media: platform: Change the call functions of getting/enable/disable the jpeg's clock") Signed-off-by:
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Hans Verkuil authored
If a CEC device node is unregistered, then it should be marked as unregistered before waking up any filehandles that are waiting for an event. This ensures that there is no race condition where an application can call CEC_DQEVENT and have the ioctl return 0 instead of ENODEV. Signed-off-by:
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Lukas Bulwahn authored
Commit 754f0f1b ("media: MAINTAINERS: change maintainer of the zoran driver") added a new section in MAINTAINERS with an invalid file entry and at the wrong place for alphabetic ordering. Hence, ./scripts/get_maintainer.pl --self-test=patterns complains: warning: no file matches F: Documentation/media/v4l-drivers/zoran.rst Point the file entry to the right location and move the section to the right place in MAINTAINERS. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by:
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Gustavo A. R. Silva authored
In order to enable -Wimplicit-fallthrough for Clang[1], replace the existing /* fall through */ comments with the new pseudo-keyword macro fallthrough[2]. [1] https://git.kernel.org/linus/e2079e93f562c7f7a030eb7642017ee5eabaaa10 [2] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-throughSigned-off-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by:
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Colin Ian King authored
The are two instances of sizeof() being used incorrectly. The sizeof(void *) is incorrect because urb_buffer is a char ** pointer, fix this by using sizeof(*dev->urb_buffer). The sizeof(dma_addr_t *) is incorrect, it should be sizeof(*dev->urb_dma), which is a dma_addr_t and not a dma_addr_t *. This errors did not cause any issues because it just so happens the sizes are the same. Addresses-Coverity: ("Sizeof not portable (SIZEOF_MISMATCH)") Fixes: 16427faf ("[media] tm6000: Add parameter to keep urb bufs allocated") Signed-off-by: -
Hans Verkuil authored
cec-core.rst was missing 'are', and cec-ioc-g-mode.rst was missing a comma. In both cases this made the description of the Monitor All functionality hard to read. Signed-off-by:
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Ezequiel Garcia authored
Make interrupt naming more consistent by using a common pattern for video and jpeg interrupts. With this commit, interrupts are shown as: 29: 0 0 GPC 12 Level coda-video 30: 0 0 GPC 3 Level coda-jpeg Signed-off-by:
Ezequiel Garcia <ezequiel@collabora.com> Acked-by:
Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by:
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Ezequiel Garcia authored
Instead of printing just the device type, let's use the device name, which makes the message more useful. With this commit, the messages shown when the driver is registered are: coda 2040000.vpu: Firmware code revision: 570363 coda 2040000.vpu: Initialized CODA960. coda 2040000.vpu: Firmware version: 3.1.1 coda 2040000.vpu: coda-jpeg-encoder registered as video0 coda 2040000.vpu: coda-jpeg-decoder registered as video1 coda 2040000.vpu: coda-video-encoder registered as video2 coda 2040000.vpu: coda-video-decoder registered as video3 Signed-off-by:
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Ezequiel Garcia authored
The H.264 small buffer padding is done under the (ctx->qsequence == 0 && payload < 512) condition. Given this is the exact same condition immediately above, we can move it right there, making the code slightly clearer. This change shouldn't affect functionality as it's just cosmetics. Signed-off-by:
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Ezequiel Garcia authored
The ctx->initialized flag is set in __coda_decoder_seq_init, so it's redundant to set it in coda_dec_seq_init_work. Remove the redundant set, which allows to simplify the implementation quite a bit. This change shouldn't affect functionality as it's just cosmetics. Signed-off-by:
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Evgeny Novikov authored
zr364xx_start_readpipe() can fail but callers do not care about that. This can result in various negative consequences. The patch adds missed error handling. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by:
Evgeny Novikov <novikov@ispras.ru> Signed-off-by:
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Liu Shixin authored
Use DEFINE_SEQ_ATTRIBUTE macro to simplify the code. Signed-off-by:
Liu Shixin <liushixin2@huawei.com> Signed-off-by:
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