Commit Graph
2771 Commits
Author SHA1 Message Date
Linus Torvalds b7ef56a076 Merge tag 'media/v7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:

 - Add support for GMSL1 and GMSL‑coax modules (PCI mgb4)

 - Add driver for TI VIP

 - AV1 – first kernel support (pixel‑format, decoder, transcoder)

 - Three new camera‑sensor drivers (os05b10, s5k3m5, s5kjn1)

 - Synopsys CSI‑2 receiver driver

 - Verisilicon & rkvdec – major fixes and enhancements

 - IPU6 (and 7) fixes and preparation for metadata

 - omap3isp: v4l2-compliance updates

 - Fix DVB streaming, drop wait_prepare/finish (dvb/vb2)

* tag 'media/v7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (307 commits)
  media: uvcvideo: Pass allocation size directly to uvc_alloc_urb_buffer
  media: uvcvideo: Fix allocation for small frame sizes
  media: uvcvideo: Return queued buffers on start_streaming() failure
  media: uvcvideo: Create an ID namespace for streaming output terminals
  media: rkvdec: Add HEVC support for the VDPU383 variant
  media: rkvdec: Add HEVC support for the VDPU381 variant
  media: rkvdec: Add H264 support for the VDPU383 variant
  media: rkvdec: Add H264 support for the VDPU381 variant
  media: rkvdec: Disable multicore support
  media: rkvdec: Enable all clocks without naming them
  media: rkvdec: Support per-variant interrupt handler
  media: rkvdec: Add RCB and SRAM support
  media: rkvdec: Add variant specific coded formats list
  media: rkvdec: Move hevc functions to common file
  media: rkvdec: Move h264 functions to common file
  media: rkvdec: Use structs to represent the HW RPS
  media: rkvdec: Move cabac tables to their own source file
  media: rkvdec: Switch to using structs instead of writel
  media: visl: Add HEVC short and long term RPS sets
  media: v4l2-ctrls: Add hevc_ext_sps_[ls]t_rps controls
  ...
2026-02-11 12:20:25 -08:00
Sakari Ailus 37a5b80a94 media: v4l2-fwnode: Allow passing NULL fwnode to endpoint parsers
v4l2_fwnode_endpoint_parse() and v4l2_fwnode_endpoint_alloc_parse() take
a fwnode as the first argument and leave it up to the caller to check a
valid fwnode has been obtained through various means. Instead, add a check
here so the callers won't need to do that anymore.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-14 23:33:02 +01:00
Sakari Ailus e3d5436c70 media: v4l2-ctrls: Set error v4l2_ctrl_new_fwnode_properties consistently
The vast majority of the callers of v4l2_ctrl_new_fwnode_properties() do
check the returned error code but the function does not set the control
handler's error on failure. This will make error handling more complicated
and prone for bugs.

Always assign the control handler's error field on error in
v4l2_ctrl_new_fwnode_properties().

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-14 23:33:02 +01:00
Nicolas Dufresne db6b97a4f8 media: v4l2-mem2mem: Add a kref to the v4l2_m2m_dev structure
Adding a reference count to the v4l2_m2m_dev structure allow safely
sharing it across multiple hardware nodes. This can be used to prevent
running jobs concurrently on m2m cores that have some internal resource
sharing.

Signed-off-by: Ming Qian <ming.qian@oss.nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
[hverkuil: fix typos in v4l2_m2m_put documentation]
2026-01-05 15:56:31 +01:00
Hans Verkuil de9f0c2a1c media: mc: add debugfs node to keep track of requests
Keep track of the number of requests and request objects of a media
device. Helps to verify that all request-related memory is freed.

Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
2026-01-05 15:56:31 +01:00
Hans Verkuil c789a7f402 media: mc: add manual request completion
By default when the last request object is completed, the whole
request completes as well.

But sometimes you want to delay this completion to an arbitrary point in
time so add a manual complete mode for this.

In req_queue the driver marks the request for manual completion by
calling media_request_mark_manual_completion, and when the driver
wants to manually complete the request it calls
media_request_manual_complete().

Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
2026-01-05 15:56:31 +01:00
Mauro Carvalho Chehab bea467aa5d docs: media: v4l2-ioctl.h: document two global variables
The media kAPI has two global variables at v4l2-ioctl.h. Document
them.

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <8ebe25ff579962fec09b586f00e77fae7802985f.1765894964.git.mchehab+huawei@kernel.org>
2025-12-22 14:43:25 -07:00
Hans Verkuil b70886ff58 media: vb2: drop wait_prepare/finish callbacks
Drop the wait_prepare/finish callbacks. Instead require that the vb2_queue
lock field is always set and use that lock when waiting for buffers to
arrive.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2025-12-18 11:14:57 +01:00
Hans Verkuil d0730006da media: vb2: remove vb2_ops_wait_prepare/finish helpers
Since vb2 now relies on the presence of the vb2_queue lock
field and there are no more drivers that use these helpers, it is safe
to drop them.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2025-12-18 11:14:57 +01:00
Hans Verkuil cbb5cd440d media: dvb-core: dvb_vb2: drop wait_prepare/finish callbacks
Since commit 88785982a1 ("media: vb2: use lock if wait_prepare/finish
are NULL") it is no longer needed to set the wait_prepare/finish
vb2_ops callbacks as long as the lock field in vb2_queue is set.

Set the queue lock to &ctx->mutex, which makes it possible to drop
the wait_prepare/finish callbacks.

This simplifies the code and this is a step towards the goal of deleting
these callbacks.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2025-12-18 11:14:57 +01:00
Hans Verkuil c4e620eccb media: dvb-core: dmxdevfilter must always flush bufs
Currently the buffers are being filled until full, which works fine
for the transport stream, but not when reading sections, those have
to be returned to userspace immediately, otherwise dvbv5-scan will
just wait forever.

Add a 'flush' argument to dvb_vb2_fill_buffer to indicate whether
the buffer must be flushed or wait until it is full.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2025-12-18 11:14:56 +01:00
Jacopo Mondi d619dd9a3d media: v4l2-isp: Rename block_info to block_type_info
The v4l2_isp_params_block_info structure contains validation information
that apply to a block -type- and not only to a specific ISP block
implementation.

Clarify this by renaming v4l2_isp_params_block_info in
v4l2_isp_params_block_type_info and update the documentation and the
users of v4l2-isp accordingly.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-14 15:48:49 +01:00
Jacopo Mondi 3cb6de6faf media: v4l2-core: Introduce v4l2-isp.c
Add to the V4L2 framework helper functions to support drivers when
validating a buffer of V4L2 ISP parameters.

Driver shall use v4l2_isp_params_validate_buffer_size() to verify the
size correctness of the data received from userspace, and after having
copied the data to a kernel-only memory location, complete the
validation by calling v4l2_isp_params_validate_buffer().

Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Michael Riesch <michael.riesch@collabora.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-14 15:48:48 +01:00
Isaac Scott fd3f646e1c media: v4l: Add helper to get number of active lanes via a pad
Sometimes, users will not use all of the MIPI CSI 2 lanes available when
connecting to the MIPI CSI receiver of their device. Add a helper
function that checks the mbus_config for the device driver to allow
users to define the number of active data lanes through the
get_mbus_config op.

If the driver does not implement this op, fall back to using the maximum
number of lanes available.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Isaac Scott <isaac.scott@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-13 10:57:52 +01:00
Laurent Pinchart ba92a96b1e media: saa7146: Replace saa7146_ext_vv.vbi_fops with write function
The vbi_fops stored in struct saa7146_ext_vv is a full
v4l2_file_operations, but only its .write field is used. Replace it with
a single vbi_write function pointer to save memory.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-03 15:58:42 +01:00
Sakari Ailus 35f29b44ac media: mc: Make macros to obtain containers const-aware
Retain the constness of the graph objects and interfaces in macros to
obtain their containers, by switching to container_of_const().

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-03 15:58:41 +01:00
Sakari Ailus 68871116f9 media: v4l2-dev: Make macros to obtain containers const-aware
Retain the constness of the object in media_entity_to_video_device() and
to_video_device(), by switching to container_of_const().

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-03 15:58:41 +01:00
Sakari Ailus f17d28968b media: v4l2-subdev: Make media_entity_to_v4l2_subdev() const-aware
Retain the constness of the object in media_entity_to_v4l2_subdev(), by
switching to container_of_const().

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-03 15:58:41 +01:00
Laurent Pinchart 1fdb55ed40 media: v4l2-mem2mem: Don't copy frame flags in v4l2_m2m_buf_copy_metadata()
The v4l2_m2m_buf_copy_metadata() function takes a boolean
copy_frame_flags argument. When true, it causes the function to copy the
V4L2_BUF_FLAG_KEYFRAME, V4L2_BUF_FLAG_BFRAME and V4L2_BUF_FLAG_PFRAME
flags from the output buffer to the capture buffer.

There is no use cases in any upstream driver for copying the flags.
KEY/P/B frames are properties of the bitstream buffer in some formats.
Once decoded, this is no longer a property of the video frame and should
be discarded.

It was considered useful to know if an uncompressed frame was decoded
from a KEY/P/B compressed frame, and to preserve that information if
that same uncompressed frame was passed through another M2M device (e.g.
a scaler). However, the V4L2 documentation makes it clear that the flags
are meant for compressed frames only.

Drop the copy_frame_flags argument from v4l2_m2m_buf_copy_metadata().
The change to drivers was performed with the following Coccinelle
semantic patch:

@@
expression src;
expression dst;
expression flag;
@@
-       v4l2_m2m_buf_copy_metadata(src, dst, flag);
+       v4l2_m2m_buf_copy_metadata(src, dst);

include/media/v4l2-mem2mem.h and drivers/media/v4l2-core/v4l2-mem2mem.c
have been updated manually.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-10-17 11:31:16 +02:00
Laurent Pinchart 3662b54c16 media: v4l2-mem2mem: Document that v4l2_m2m_get_vq() never returns NULL
The v4l2_m2m_get_vq() never returns a NULL pointer, as the internal
get_queue_ctx() helper always returns a non-NULL pointer. Many drivers
check the return value against NULL, due to a combination of old code
and cargo-cult programming. Even v4l2-mem2mem.c contains unneeded NULL
checks.

Clarify the API by documenting explicitly that a NULL check is not
needed, and simplify the code by removing the unneeded NULL checks from
v4l2-mem2mem.c.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-10-17 11:31:14 +02:00
Laurent Pinchart 082b86919b media: v4l2-mem2mem: Fix outdated documentation
Commit cbd9463da1 ("media: v4l2-mem2mem: Avoid calling .device_run in
v4l2_m2m_job_finish") deferred calls to .device_run() to a work queue to
avoid recursive calls when a job is finished right away from
.device_run(). It failed to update the v4l2_m2m_job_finish()
documentation that still states the function must not be called from
.device_run(). Fix it.

Fixes: cbd9463da1 ("media: v4l2-mem2mem: Avoid calling .device_run in v4l2_m2m_job_finish")
Cc: stable@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-10-14 15:07:37 +02:00
Laurent Pinchart dd235b07b6 media: v4l2-common: Add legacy camera sensor clock helper
The recently introduced devm_v4l2_sensor_clk_get() helper aims at
simplifying sensor drivers by centralizing clock handling code, as well
as reducing cargo-cult and deprecated behaviour.

A set of drivers implement external clock handling in a non-standard
way. This can't be changed as there is a high risk of breaking existing
platforms, but keeping the code as-is creates a risk of new drivers
copying deprecated behaviour.

To fix this, introduce a new devm_v4l2_sensor_clk_get_legacy() helper
and use it in those driver. Compared to devm_v4l2_sensor_clk_get(), the
new helper takes the "clock-frequency" property into account and sets
the external clock rate on OF platforms, and adds the ability to specify
a fixed default or fallback clock rate in case the "clock-frequency"
property is not present.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:19 +02:00
Laurent Pinchart b4dd3bbd2e media: i2c: mt9v032: Drop support for platform data
The last user of the mt9v032 driver through board files and platform
data has long been removed. Drop support for platform data from the
driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:17 +02:00
Laurent Pinchart 55e3c86887 media: i2c: mt9v022: Drop unused mt9v022.h header
The mt9v022 driver got removed in commit e7eab49132 ("media:
staging/media/soc_camera: remove this driver"), but its platform header
file got left behind. Remove it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:17 +02:00
Hans Verkuil e8c8d961d8 media: include: update Hans Verkuil's email address
Replace hverkuil@xs4all.nl by hverkuil@kernel.org.

Signed-off-by: Hans Verkuil <hverkuil@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2025-09-09 15:58:56 +02:00