Commit Graph

34980 Commits

Author SHA1 Message Date
Paweł Anikiel
a8ece88ab0 media: i2c: adv748x: Switch dv timing callbacks to pad ops
Change all (s|g|query)_dv_timings subdev callbacks to include
a pad argument.

Signed-off-by: Paweł Anikiel <panikiel@google.com>
Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-09 08:15:03 +02:00
Paweł Anikiel
009e125613 media: v4l2-subdev: Add pad versions of dv timing subdev calls
Currently, subdev dv timing calls (i.e. g/s/query_dv_timings) are video
ops without a pad argument. This is a problem if the subdevice can have
different dv timings for each pad (e.g. a DisplayPort receiver with
multiple virtual channels).

To solve this, change these calls to include a pad argument, and put
them into pad ops. Keep the old ones temporarily to make the switch
easier.

Signed-off-by: Paweł Anikiel <panikiel@google.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-09 08:15:03 +02:00
Bryan O'Donoghue
682f496808 media: qcom: camss: vfe-17x: Rename camss-vfe-170 to camss-vfe-17x
vfe-170 and vfe-175 can be supported in the same file with some minimal
indirection to differentiate between the silicon versions.

sdm845 uses vfe-170, sc8280xp uses vfe-175-200. Lets rename the file to
capture its wider scope than vfe-170 only.

Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 15:46:33 +02:00
Bryan O'Donoghue
f2a7ffab98 media: qcom: camss: Add sc8280xp support
Add in functional logic throughout the code to support the sc8280xp.

Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 15:46:32 +02:00
Bryan O'Donoghue
4f94419ef4 media: qcom: camss: Add sc8280xp resources
This commit describes the hardware layout for the sc8280xp for the
following hardware blocks:

- 4 x VFE, 4 RDI per VFE
- 4 x VFE Lite, 4 RDI per VFE
- 4 x CSID
- 4 x CSID Lite
- 4 x CSI PHY

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 15:46:32 +02:00
Bryan O'Donoghue
6209899de7 media: qcom: camss: Add CAMSS_SC8280XP enum
Adds a CAMSS SoC identifier for the SC8280XP.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 15:46:32 +02:00
Bryan O'Donoghue
ebdd4f2255 media: qcom: camss: csiphy-3ph: Add Gen2 v1.1 two-phase MIPI CSI-2 DPHY init
Add a PHY configuration sequence for the sc8280xp which uses a Qualcomm
Gen 2 version 1.1 CSI-2 PHY.

The PHY can be configured as two phase or three phase in C-PHY or D-PHY
mode. This configuration supports two-phase D-PHY mode.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 15:46:32 +02:00
Tzung-Bi Shih
50a0844bf8 media: platform: cros-ec: provide ID table for avoiding fallback match
Instead of using fallback driver name match, provide ID table[1] for the
primary match.

[1]: https://elixir.bootlin.com/linux/v6.8/source/drivers/base/platform.c#L1353

Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 13:48:19 +02:00
Krzysztof Kozlowski
1a4a993cc2 media: mmc: siano: simplify module initialization
This driver's initialization functions do not perform any custom code,
except printing messages.  Printing messages on modules
loading/unloading is discouraged because it pollutes the dmesg
regardless whether user actually has this device.  Core kernel code
already gives tools to investigate whether module was loaded or not.

Drop the printing messages which allows to replace open-coded
module_sdio_driver().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 13:48:19 +02:00
Ricardo Ribalda
17d1316de0 media: dvbdev: Initialize sbuf
Because the size passed to copy_from_user() cannot be known beforehand,
it needs to be checked during runtime with check_object_size. That makes
gcc believe that the content of sbuf can be used before init.

Fix:
./include/linux/thread_info.h:215:17: warning: ‘sbuf’ may be used uninitialized [-Wmaybe-uninitialized]

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 13:48:19 +02:00
Ricardo Ribalda
1820e16a30 media: radio-shark2: Avoid led_names truncations
Increase the size of led_names so it can fit any valid v4l2 device name.

Fixes:
drivers/media/radio/radio-shark2.c:197:17: warning: ‘%s’ directive output may be truncated writing up to 35 bytes into a region of size 32 [-Wformat-truncation=]

Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 13:48:19 +02:00
Arnd Bergmann
1a742c6010 media: rcar-vin: work around -Wenum-compare-conditional warning
clang-19 warns about mixing two enum types here:

drivers/media/platform/renesas/rcar-vin/rcar-vin.h:296:12: error: conditional expression between different enumeration types ('enum rvin_csi_id' and 'enum rvin_isp_id') [-Werror,-Wenum-compare-conditional]
drivers/media/platform/renesas/rcar-vin/rcar-core.c:216:18: error: conditional expression between different enumeration types ('enum rvin_csi_id' and 'enum rvin_isp_id') [-Werror,-Wenum-compare-conditional]
drivers/media/platform/renesas/rcar-vin/rcar-vin.h:296:12: error: conditional expression between different enumeration types ('enum rvin_csi_id' and 'enum rvin_isp_id') [-Werror,-Wenum-compare-conditional]
drivers/media/platform/renesas/rcar-vin/rcar-vin.h:296:12: error: conditional expression between different enumeration types ('enum rvin_csi_id' and 'enum rvin_isp_id') [-Werror,-Wenum-compare-conditional]

This one is intentional, and there is already a cast to work around another
warning, so address this by adding another cast.

Fixes: 406bb586de ("media: rcar-vin: Add r8a779a0 support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 13:48:19 +02:00
Jacopo Mondi
b74c77d3d6 media: v4l2-common: Add Y210 and Y216 format info
According to the formats description in videodev2.h Y210, Y212 and Y216
are YCbCr packed formats. For each Y2xx format, xx bits of valid data
occupy the MSBs of the 16 bit components, and 16-xx bits of zero padding
occupy the LSBs.

The Y210 and Y216 formats are missing an entry in the v4l2_format_info[]
table. Add it.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 13:48:19 +02:00
Prasad Pandit
53cdd87c74 media: cxd2880: Add terminating new line to Kconfig
Add terminating new line to the Kconfig file.

Signed-off-by: Prasad Pandit <pjp@fedoraproject.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: dropped 'Fixes' tag, not relevant for this]
2024-04-08 13:48:18 +02:00
Hans Verkuil
f4a1155c62 media: v4l2-ctrls: add support for area type logging
A 'case V4L2_CTRL_TYPE_AREA' was missing in v4l2_ctrl_type_op_log,
which led to an 'unknown type' message in the kernel log.

Add support for controls of this type.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 13:48:18 +02:00
Aleksandr Burakov
9bb1fd7edd media: ngene: Add dvb_ca_en50221_init return value check
The return value of dvb_ca_en50221_init() is not checked here that may
cause undefined behavior in case of nonzero value return.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 25aee3debe ("[media] Rename media/dvb as media/pci")
Signed-off-by: Aleksandr Burakov <a.burakov@rosalinux.ru>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-04-08 13:48:18 +02:00
István Váradi
3c2ea5ec1d media: anysee: accept read buffers of length 1 in anysee_master_xfer
anysee_master_xfer currently accepts read messages of length 2 only.
However, several frontends, e.g. tda10023 send buffers of length 1,
containing an 8-bit register number (see tda10023_readreg).
These buffers are rejected currently, making many Anysee variants
to not work. In these cases the "Unsupported Anysee version"
message is logged.

This patch alters the function to accept buffers of a length of 1 too.

Signed-off-by: István Váradi <ivaradi@varadiistvan.hu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: add spaces around '<', fix typo in 'sevaral']
2024-04-08 13:48:18 +02:00
Benjamin Gaignard
fe19aab844 media: verisilicon: Support removing buffers on capture queue
Allow to remove buffers on capture queue because it the one which
own the decoded buffers. After a dynamic resolution change lot of
them could remain allocated but won't be used anymore so deleting
them save memory.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 12:00:44 +01:00
Benjamin Gaignard
2f2419502f media: v4l2: Add mem2mem helpers for REMOVE_BUFS ioctl
Create v4l2-mem2mem helpers for VIDIOC_REMOVE_BUFS ioctl and
make test drivers use it.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 12:00:44 +01:00
Benjamin Gaignard
a3293a8538 media: v4l2: Add REMOVE_BUFS ioctl
VIDIOC_REMOVE_BUFS ioctl allows to remove buffers from a queue.
The number of buffers to remove in given by count field of
struct v4l2_remove_buffers and the range start at the index
specified in the same structure.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: vidioc-remove-bufs.rst: mention no bufs are freed on error]
2024-03-25 12:00:44 +01:00
Benjamin Gaignard
5fb19f2092 media: core: Free range of buffers
Improve __vb2_queue_free() and __vb2_free_mem() to free
range of buffers and not only the last few buffers.
Introduce starting index to be flexible on range and change the loops
according to this parameter.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 12:00:44 +01:00
Benjamin Gaignard
a286b0837e media: core: Add bitmap manage bufs array entries
Add a bitmap field to know which of bufs array entries are
used or not.
Remove no more used num_buffers field from queue structure.
Use bitmap_find_next_zero_area() to find the first possible
range when creating new buffers to fill the gaps.
If no suitable range is found try to allocate less buffers
than requested.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 12:00:44 +01:00
Benjamin Gaignard
6e423b75d0 media: core: Rework how create_buf index returned value is computed
When REMOVE_BUFS will be introduced holes could created in bufs array.
To be able to reuse these unused indices reworking how create->index
is set is mandatory.
Let __vb2_queue_alloc() decide which first index is correct and
forward this to the caller.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 12:00:44 +01:00
Benjamin Gaignard
f5131d5ce4 media: test-drivers: Set REQBUFS minimum number of buffers
Instead of using 'min_queued_buffers' field to specify the
minimum number of buffers to be allocated when calling REQBUF
use 'min_reqbufs_allocation' field which is dedicated to this
purpose.

Change the minimum requested buffers to 2 for vivid-meta-out
and vivid-touch-cap drivers when creating the queues.
That allows to remove code which prohibe to allocate only
one buffer in their respective queue setup functions.

While at it rename vivid_create_queue() parameter.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 12:00:44 +01:00
Benjamin Gaignard
6662edcd32 media: videobuf2: Add min_reqbufs_allocation field to vb2_queue structure
Add 'min_reqbufs_allocation' field in the vb2_queue structure so drivers
can specify the minimum number of buffers to allocate when calling
VIDIOC_REQBUFS.
When initializing the queue, v4l2 core makes sure that the following
constraints are respected:
- the minimum number of buffers to allocate must be at least 2 because
one buffer is used by the hardware while the other is being processed
by userspace.
-if the driver needs 'min_queued_buffers' in the queue before calling
start_streaming(), then the minimum requirement is 'min_queued_buffers + 1'
to keep at least one buffer available for userspace.

Simplify __vb2_init_fileio() by using 'min_reqbufs_allocation' directly
to avoid duplicating the minimum number of buffers to allocate computation.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 12:00:44 +01:00
Benjamin Gaignard
d7cdb5946f media: videobuf2: Update vb2_is_busy() logic
Do not rely on the number of allocated buffers to know if the
queue is busy but on a flag set when at least one buffer has been allocated
by REQBUFS or CREATE_BUFS ioctl.
The flag is reset when REQBUFS is called with count = 0 or the file
handle is closed.
This is needed because remove buffers feature will be able to remove
all the buffers from a queue while streaming so relying on the number
of allocated buffers in the queue won't be possible.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 12:00:44 +01:00
Li Zhijian
cc4cce95a9 media: imon: Convert sprintf/snprintf to sysfs_emit
Per filesystems/sysfs.rst, show() should only use sysfs_emit()
or sysfs_emit_at() when formatting the value to be returned to user space.

coccinelle complains that there are still a couple of functions that use
snprintf(). Convert them to sysfs_emit().

sprintf() will be converted as weel if they have.

Generally, this patch is generated by
make coccicheck M=<path/to/file> MODE=patch \
COCCI=scripts/coccinelle/api/device_attr_show.cocci

No functional change intended

Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:44 +01:00
Ricardo B. Marliere
8d93d0674b media: lirc_dev: Make lirc_class constant
Since commit 43a7206b09 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the lirc_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:44 +01:00
Andy Shevchenko
888eefd91c media: ir-spi: Unify indentation and comment style
Unify the indentation and multi-line comment style.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:44 +01:00
Andy Shevchenko
3f82a4624a media: ir-spi: Remove trailing comma in the terminator entry
Remove trailing comma in the terminator entry in ID table(s).

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:44 +01:00
Andy Shevchenko
37308961cf media: ir-spi: Utilise temporary variable for struct device
We have a temporary variable to keep pointer to struct device.
Utilise it inside the ->probe() implementation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:44 +01:00
Andy Shevchenko
191d638f2d media: ir-spi: Make use of device properties
Convert the module to be property provider agnostic and allow
it to be used on non-OF platforms.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:44 +01:00
Andy Shevchenko
cbde07f0d1 media: ir-spi: Don't use "proxy" headers
Update header inclusions to follow IWYU (Include What You Use)
principle.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:44 +01:00
Andy Shevchenko
7756d3cfe1 media: c8sectpfe: Remove unused of_gpio.h
of_gpio.h is deprecated and subject to remove.
The driver doesn't use it, simply remove the unused header.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:43 +01:00
Andy Shevchenko
649a53b68e media: rc: gpio-ir-recv: Remove unused of_gpio.h
of_gpio.h is deprecated and subject to remove.
The driver doesn't use it, simply remove the unused header.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:43 +01:00
Sebastian Fricke
afb33144eb media: mediatek: vcodec: Replace false function description
The function descriptions where falsely copy pasted from another entry,
write more fitting descriptions for the functions.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:43 +01:00
Sebastian Fricke
9fca0be64d media: mediatek: vcodec: Improve wording & fix grammatic issues
Multiple issues detected while scanning the code by far not a complete
list of required changes but some small improvements.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:43 +01:00
Sebastian Fricke
64a2ade8f1 media: mediatek: vcodec: Fix multiple typos
Correct multiple different typos found in comments or function names.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:43 +01:00
Devarsh Thakkar
ed7276ed2f media: chips-media: wave5: Add hrtimer based polling support
Add support for starting a polling timer in case an interrupt is not
available. This helps to keep the VPU functional in SoCs such as AM62A,
where the hardware interrupt hookup may not be present due to an SoC errata
[1].

The timer is shared across all instances of encoders and decoders and is
started when the first instance of an encoder or decoder is opened and
stopped when the last instance is closed, thus avoiding per instance
polling and saving CPU bandwidth. As VPU driver manages this instance
related tracking and synchronization, the aforementioned shared timer
related polling logic is implemented within the VPU driver itself. This
scheme may also be useful in general too (even if irq is present) for
non-realtime multi-instance VPU use-cases (for e.g 32 instances of VPU
being run together) where system is running already under high interrupt
load and switching to polling may help mitigate this as the polling thread
is shared across all the VPU instances.

Hrtimer is chosen for polling here as it provides precise timing and
scheduling and the API seems better suited for periodic polling task such
as this.  As a general rule of thumb,

Worst case latency with hrtimer = Actual latency (achievable with irq)
                                  + Polling interval

NOTE (the meaning of terms used above is as follows):
- Latency: Time taken to process one frame
- Actual Latency : Time taken by hardware to process one frame and signal
  it to OS (i.e. if latency that was possible to achieve if irq line was
present)

There is a trade-off between latency and CPU usage when deciding the value
for polling interval. With aggressive polling intervals (i.e. going with
even lesser values) the CPU usage increases although worst case latencies
get better. On the contrary, with greater polling intervals worst case
latencies will increase although the CPU usage will decrease.

The 5ms offered a good balance between the two as we were able to reach
close to actual latencies (as achievable with irq) without incurring too
much of CPU as seen in below experiments and thus 5ms is chosen as default
polling interval.

- 1x 640x480@25 Encoding using different hrtimer polling intervals [2]
- 4x 1080p30 Transcode (File->decode->encode->file) irq vs polling
  comparison [3]
- 1x 1080p Transcode (File->decode->encode->file) irq vs polling comparison
  [4]
- 1080p60 Streaming use-case irq vs polling comparison [5]
- 1x 1080p30 sanity decode and encode tests [6]

The polling interval can also be changed using vpu_poll_interval module
param in case user want to change it as per their use-case requirement
keeping in mind above trade-off.

Parse the irq number and if not present, initialize the hrtimer and the
polling worker thread before proceeding with v4l2 device registrations.

Based on interrupt status, we use a worker thread to iterate over the
interrupt status for each instance and send completion event as being done
in irq thread function.

Move the core functionality of the irq thread function to a separate
function wave5_vpu_handle_irq so that it can be used by both the worker
thread when using polling mode and irq thread when using interrupt mode.

Protect the hrtimer access and instance list with device specific mutex
locks to avoid race conditions while different instances of encoder and
decoder are started together.

[1] https://www.ti.com/lit/pdf/spruj16
(Ref: Section 4.2.3.3 Resets, Interrupts, and Clocks)
[2] https://gist.github.com/devarsht/ee9664d3403d1212ef477a027b71896c
[3] https://gist.github.com/devarsht/3a58b4f201430dfc61697c7e224e74c2
[4] https://gist.github.com/devarsht/a6480f1f2cbdf8dd694d698309d81fb0
[5] https://gist.github.com/devarsht/44aaa4322454e85e01a8d65ac47c5edb
[6] https://gist.github.com/devarsht/2f956bcc6152dba728ce08cebdcebe1d

Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
Tested-by: Jackson Lee <jackson.lee@chipsnmedia.com>
Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-25 10:13:43 +01:00
Linus Torvalds
eb7cca1faf media updates for v6.9-rc1
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Merge tag 'media/v6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - DVB budget legacy API was finally documented. It took only 20+ years
   to get some documentation about it...

 - hantro driver has gained support for STM32MP25 VDEC/VENC

 - rkisp1 has gained support for i.MX8MP

 - atomisp got rid of two items from its todo list. Still 5 items
   pending for moving it out of staging

 - lots of driver fixes, cleanups and improvements

* tag 'media/v6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (252 commits)
  media: rcar-isp: Disallow unbind of devices
  media: usbtv: Remove useless locks in usbtv_video_free()
  media: mediatek: vcodec: avoid -Wcast-function-type-strict warning
  media: ttpci: fix two memleaks in budget_av_attach
  media: go7007: fix a memleak in go7007_load_encoder
  media: dvb-frontends: avoid stack overflow warnings with clang
  media: pvrusb2: fix uaf in pvr2_context_set_notify
  media: usb: s2255: Refactor s2255_get_fx2fw
  media: ti: j721e-csi2rx: Convert to platform remove callback returning void
  media: stm32-dcmipp: Convert to platform remove callback returning void
  media: nxp: imx8-isi: Convert to platform remove callback returning void
  media: nuvoton: Convert to platform remove callback returning void
  media: chips-media: wave5: Convert to platform remove callback returning void
  media: chips-media: wave5: Remove unnecessary semicolons
  media: i2c: imx290: Fix IMX920 typo
  media: platform: replace of_graph_get_next_endpoint()
  media: i2c: replace of_graph_get_next_endpoint()
  media: ivsc: csi: Make use of sub-device state
  media: ivsc: csi: Swap SINK and SOURCE pads
  media: ipu-bridge: Serialise calls to IPU bridge init
  ...
2024-03-15 11:36:54 -07:00
Linus Torvalds
e5eb28f6d1 - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min
heap optimizations".
 
 - Kuan-Wei Chiu has also sped up the library sorting code in the series
   "lib/sort: Optimize the number of swaps and comparisons".
 
 - Alexey Gladkov has added the ability for code running within an IPC
   namespace to alter its IPC and MQ limits.  The series is "Allow to
   change ipc/mq sysctls inside ipc namespace".
 
 - Geert Uytterhoeven has contributed some dhrystone maintenance work in
   the series "lib: dhry: miscellaneous cleanups".
 
 - Ryusuke Konishi continues nilfs2 maintenance work in the series
 
 	"nilfs2: eliminate kmap and kmap_atomic calls"
 	"nilfs2: fix kernel bug at submit_bh_wbc()"
 
 - Nathan Chancellor has updated our build tools requirements in the
   series "Bump the minimum supported version of LLVM to 13.0.1".
 
 - Muhammad Usama Anjum continues with the selftests maintenance work in
   the series "selftests/mm: Improve run_vmtests.sh".
 
 - Oleg Nesterov has done some maintenance work against the signal code
   in the series "get_signal: minor cleanups and fix".
 
 Plus the usual shower of singleton patches in various parts of the tree.
 Please see the individual changelogs for details.
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Merge tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min
   heap optimizations".

 - Kuan-Wei Chiu has also sped up the library sorting code in the series
   "lib/sort: Optimize the number of swaps and comparisons".

 - Alexey Gladkov has added the ability for code running within an IPC
   namespace to alter its IPC and MQ limits. The series is "Allow to
   change ipc/mq sysctls inside ipc namespace".

 - Geert Uytterhoeven has contributed some dhrystone maintenance work in
   the series "lib: dhry: miscellaneous cleanups".

 - Ryusuke Konishi continues nilfs2 maintenance work in the series

	"nilfs2: eliminate kmap and kmap_atomic calls"
	"nilfs2: fix kernel bug at submit_bh_wbc()"

 - Nathan Chancellor has updated our build tools requirements in the
   series "Bump the minimum supported version of LLVM to 13.0.1".

 - Muhammad Usama Anjum continues with the selftests maintenance work in
   the series "selftests/mm: Improve run_vmtests.sh".

 - Oleg Nesterov has done some maintenance work against the signal code
   in the series "get_signal: minor cleanups and fix".

Plus the usual shower of singleton patches in various parts of the tree.
Please see the individual changelogs for details.

* tag 'mm-nonmm-stable-2024-03-14-09-36' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (77 commits)
  nilfs2: prevent kernel bug at submit_bh_wbc()
  nilfs2: fix failure to detect DAT corruption in btree and direct mappings
  ocfs2: enable ocfs2_listxattr for special files
  ocfs2: remove SLAB_MEM_SPREAD flag usage
  assoc_array: fix the return value in assoc_array_insert_mid_shortcut()
  buildid: use kmap_local_page()
  watchdog/core: remove sysctl handlers from public header
  nilfs2: use div64_ul() instead of do_div()
  mul_u64_u64_div_u64: increase precision by conditionally swapping a and b
  kexec: copy only happens before uchunk goes to zero
  get_signal: don't initialize ksig->info if SIGNAL_GROUP_EXIT/group_exec_task
  get_signal: hide_si_addr_tag_bits: fix the usage of uninitialized ksig
  get_signal: don't abuse ksig->info.si_signo and ksig->sig
  const_structs.checkpatch: add device_type
  Normalise "name (ad@dr)" MODULE_AUTHORs to "name <ad@dr>"
  dyndbg: replace kstrdup() + strchr() with kstrdup_and_replace()
  list: leverage list_is_head() for list_entry_is_head()
  nilfs2: MAINTAINERS: drop unreachable project mirror site
  smp: make __smp_processor_id() 0-argument macro
  fat: fix uninitialized field in nostale filehandles
  ...
2024-03-14 18:03:09 -07:00
Linus Torvalds
480e035fc4 drm for 6.9:
core:
 - EDID cleanups
 - scheduler error handling fixes
 - managed: add drmm_release_action() with tests
 - add ratelimited drm debug print
 - DPCD PSR early transport macro
 - DP tunneling and bandwidth allocation helpers
 - remove built-in edids
 - dp: Avoid AUX transfers on powered-down displays
 - dp: Add VSC SDP helpers
 
 cross drivers:
 - use new drm print helpers
 - switch to ->read_edid callback
 - gem: add stats for shared buffers plus updates to amdgpu, i915, xe
 
 syncobj:
 - fixes to waiting and sleeping
 
 ttm:
 - add tests
 - fix errno codes
 - simply busy-placement handling
 - fix page decryption
 
 media:
 - tc358743: fix v4l device registration
 
 video:
 - move all kernel parameters for video behind CONFIG_VIDEO
 
 sound:
 - remove <drm/drm_edid.h> include from header
 
 ci:
 - add tests for msm
 - fix apq8016 runner
 
 efifb:
 - use copy of global screen_info state
 
 vesafb:
 - use copy of global screen_info state
 
 simplefb:
 - fix logging
 
 bridge:
 - ite-6505: fix DP link-training bug
 - samsung-dsim: fix error checking in probe
 - samsung-dsim: add bsh-smm-s2/pro boards
 - tc358767: fix regmap usage
 - imx: add i.MX8MP HDMI PVI plus DT bindings
 - imx: add i.MX8MP HDMI TX plus DT bindings
 - sii902x: fix probing and unregistration
 - tc358767: limit pixel PLL input range
 - switch to new drm_bridge_read_edid() interface
 
 panel:
 - ltk050h3146w: error-handling fixes
 - panel-edp: support delay between power-on and enable; use put_sync in
   unprepare; support Mediatek MT8173 Chromebooks, BOE NV116WHM-N49 V8.0,
   BOE NV122WUM-N41, CSO MNC207QS1-1 plus DT bindings
 - panel-lvds: support EDT ETML0700Z9NDHA plus DT bindings
 - panel-novatek: FRIDA FRD400B25025-A-CTK plus DT bindings
 - add BOE TH101MB31IG002-28A plus DT bindings
 - add EDT ETML1010G3DRA plus DT bindings
 - add Novatek NT36672E LCD DSI plus DT bindings
 - nt36523: support 120Hz timings, fix includes
 - simple: fix display timings on RK32FN48H
 - visionox-vtdr6130: fix initialization
 - add Powkiddy RGB10MAX3 plus DT bindings
 - st7703: support panel rotation plus DT bindings
 - add Himax HX83112A plus DT bindings
 - ltk500hd1829: add support for ltk101b4029w and admatec 9904370
 - simple: add BOE BP082WX1-100 8.2" panel plus DT bindungs
 
 panel-orientation-quirks:
 - GPD Win Mini
 
 amdgpu:
 - Validate DMABuf imports in compute VMs
 - Add RAS ACA framework
 - PSP 13 fixes
 - Misc code cleanups
 - Replay fixes
 - Atom interpretor PS, WS bounds checking
 - DML2 fixes
 - Audio fixes
 - DCN 3.5 Z state fixes
 - Remove deprecated ida_simple usage
 - UBSAN fixes
 - RAS fixes
 - Enable seq64 infrastructure
 - DC color block enablement
 - Documentation updates
 - DC documentation updates
 - DMCUB updates
 - ATHUB 4.1 support
 - LSDMA 7.0 support
 - JPEG DPG support
 - IH 7.0 support
 - HDP 7.0 support
 - VCN 5.0 support
 - SMU 13.0.6 updates
 - NBIO 7.11 updates
 - SDMA 6.1 updates
 - MMHUB 3.3 updates
 - DCN 3.5.1 support
 - NBIF 6.3.1 support
 - VPE 6.1.1 support
 
 amdkfd:
 - Validate DMABuf imports in compute VMs
 - SVM fixes
 - Trap handler updates and enhancements
 - Fix cache size reporting
 - Relocate the trap handler
 
 radeon:
 - Atom interpretor PS, WS bounds checking
 - Misc code cleanups
 
 xe:
 - new query for GuC submission version
 - Remove unused persistent exec_queues
 - Add vram frequency sysfs attributes
 - Add the flag XE_VM_BIND_FLAG_DUMPABLE
 - Drop pre-production workarounds
 - Drop kunit tests for unsupported platforms
 - Start pumbling SR-IOV support with memory based interrupts for VF
 - Allow to map BO in GGTT with PAT index corresponding to
   XE_CACHE_UC to work with memory based interrupts
 - Add GuC Doorbells Manager as prep work SR-IOV
 - Implement additional workarounds for xe2 and MTL
 - Program a few registers according to perfomance guide spec for Xe2
 - Fix remaining 32b build issues and enable it back
 - Fix build with CONFIG_DEBUG_FS=n
 - Fix warnings from GuC ABI headers
 - Introduce Relay Communication for SR-IOV for VF <-> GuC <-> PF
 - Release mmap mappings on rpm suspend
 - Disable mid-thread preemption when not properly supported by hardware
 - Fix xe_exec by reserving extra fence slot for CPU bind
 - Fix xe_exec with full long running exec queue
 - Canonicalize addresses where needed for Xe2 and add to devcoredum
 - Toggle USM support for Xe2
 - Only allow 1 ufence per exec / bind IOCTL
 - Add GuC firmware loading for Lunar Lake
 - Add XE_VMA_PTE_64K VMA flag
 
 i915:
 - Add more ADL-N PCI IDs
 - Enable fastboot also on older platforms
 - Early transport for panel replay and PSR
 - New ARL PCI IDs
 - DP TPS4 PHY test pattern support
 - Unify and improve VSC SDP for PSR and non-PSR cases
 - Refactor memory regions and improve debug logging
 - Rework global state serialization
 - Remove unused CDCLK divider fields
 - Unify HDCP connector logging format
 - Use display instead of graphics version in display code
 - Move VBT and opregion debugfs next to the implementation
 - Abstract opregion interface, use opaque type
 - MTL fixes
 - HPD handling fixes
 - Add GuC submission interface version query
 - Atomically invalidate userptr on mmu-notifier
 - Update handling of MMIO triggered reports
 - Don't make assumptions about intel_wakeref_t type
 - Extend driver code of Xe_LPG to Xe_LPG+
 - Add flex arrays to struct i915_syncmap
 - Allow for very slow HuC loading
 - DP tunneling and bandwidth allocation support
 
 msm:
 - Correct bindings for MSM8976 and SM8650 platforms
 - Start migration of MDP5 platforms to DPU driver
 - X1E80100 MDSS support
 - DPU:
 - Improve DSC allocation, fixing several important corner cases
 - Add support for SDM630/SDM660 platforms
 - Simplify dpu_encoder_phys_ops
 - Apply fixes targeting DSC support with a single DSC encoder
 - Apply fixes for HCTL_EN timing configuration
 - X1E80100 support
 - Add support for YUV420 over DP
 - GPU:
 - fix sc7180 UBWC config
 - fix a7xx LLC config
 - new gpu support: a305B, a750, a702
 - machine support: SM7150 (different power levels than other a618)
 - a7xx devcoredump support
 
 habanalabs:
 - configure IRQ affinity according to NUMA node
 - move HBM MMU page tables inside the HBM
 - improve device reset
 - check extended PCIe errors
 
 ivpu:
 - updates to firmware API
 - refactor BO allocation
 
 imx:
 - use devm_ functions during init
 
 hisilicon:
 - fix EDID includes
 
 mgag200:
 - improve ioremap usage
 - convert to struct drm_edid
 - Work around PCI write bursts
 
 nouveau:
 - disp: use kmemdup()
 - fix EDID includes
 - documentation fixes
 
 qaic:
 - fixes to BO handling
 - make use of DRM managed release
 - fix order of remove operations
 
 rockchip:
 - analogix_dp: get encoder port from DT
 - inno_hdmi: support HDMI for RK3128
 - lvds: error-handling fixes
 
 ssd130x:
 - support SSD133x plus DT bindings
 
 tegra:
 - fix error handling
 
 tilcdc:
 - make use of DRM managed release
 
 v3d:
 - show memory stats in debugfs
 - Support display MMU page size
 
 vc4:
 - fix error handling in plane prepare_fb
 - fix framebuffer test in plane helpers
 
 virtio:
 - add venus capset defines
 
 vkms:
 - fix OOB access when programming the LUT
 - Kconfig improvements
 
 vmwgfx:
 - unmap surface before changing plane state
 - fix memory leak in error handling
 - documentation fixes
 - list command SVGA_3D_CMD_DEFINE_GB_SURFACE_V4 as invalid
 - fix null-pointer deref in execbuf
 - refactor display-mode probing
 - fix fencing for creating cursor MOBs
 - fix cursor-memory lifetime
 
 xlnx:
 - fix live video input for ZynqMP DPSUB
 
 lima:
 - fix memory leak
 
 loongson:
 - fail if no VRAM present
 
 meson:
 - switch to new drm_bridge_read_edid() interface
 
 renesas:
 - add RZ/G2L DU support plus DT bindings
 
 mxsfb:
 - Use managed mode config
 
 sun4i:
 - HDMI: updates to atomic mode setting
 
 mediatek:
 - Add display driver for MT8188 VDOSYS1
 - DSI driver cleanups
 - Filter modes according to hardware capability
 - Fix a null pointer crash in mtk_drm_crtc_finish_page_flip
 
 etnaviv:
 - enhancements for NPU and MRT support
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Merge tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "Highlights are usual, more AMD IP blocks for future hw, i915/xe
  changes, Displayport tunnelling support for i915, msm YUV over DP
  changes, new tests for ttm, but its mostly a lot of stuff all over the
  place from lots of people.

  core:
   - EDID cleanups
   - scheduler error handling fixes
   - managed: add drmm_release_action() with tests
   - add ratelimited drm debug print
   - DPCD PSR early transport macro
   - DP tunneling and bandwidth allocation helpers
   - remove built-in edids
   - dp: Avoid AUX transfers on powered-down displays
   - dp: Add VSC SDP helpers

  cross drivers:
   - use new drm print helpers
   - switch to ->read_edid callback
   - gem: add stats for shared buffers plus updates to amdgpu, i915, xe

  syncobj:
   - fixes to waiting and sleeping

  ttm:
   - add tests
   - fix errno codes
   - simply busy-placement handling
   - fix page decryption

  media:
   - tc358743: fix v4l device registration

  video:
   - move all kernel parameters for video behind CONFIG_VIDEO

  sound:
   - remove <drm/drm_edid.h> include from header

  ci:
   - add tests for msm
   - fix apq8016 runner

  efifb:
   - use copy of global screen_info state

  vesafb:
   - use copy of global screen_info state

  simplefb:
   - fix logging

  bridge:
   - ite-6505: fix DP link-training bug
   - samsung-dsim: fix error checking in probe
   - samsung-dsim: add bsh-smm-s2/pro boards
   - tc358767: fix regmap usage
   - imx: add i.MX8MP HDMI PVI plus DT bindings
   - imx: add i.MX8MP HDMI TX plus DT bindings
   - sii902x: fix probing and unregistration
   - tc358767: limit pixel PLL input range
   - switch to new drm_bridge_read_edid() interface

  panel:
   - ltk050h3146w: error-handling fixes
   - panel-edp: support delay between power-on and enable; use put_sync
     in unprepare; support Mediatek MT8173 Chromebooks, BOE NV116WHM-N49
     V8.0, BOE NV122WUM-N41, CSO MNC207QS1-1 plus DT bindings
   - panel-lvds: support EDT ETML0700Z9NDHA plus DT bindings
   - panel-novatek: FRIDA FRD400B25025-A-CTK plus DT bindings
   - add BOE TH101MB31IG002-28A plus DT bindings
   - add EDT ETML1010G3DRA plus DT bindings
   - add Novatek NT36672E LCD DSI plus DT bindings
   - nt36523: support 120Hz timings, fix includes
   - simple: fix display timings on RK32FN48H
   - visionox-vtdr6130: fix initialization
   - add Powkiddy RGB10MAX3 plus DT bindings
   - st7703: support panel rotation plus DT bindings
   - add Himax HX83112A plus DT bindings
   - ltk500hd1829: add support for ltk101b4029w and admatec 9904370
   - simple: add BOE BP082WX1-100 8.2" panel plus DT bindungs

  panel-orientation-quirks:
   - GPD Win Mini

  amdgpu:
   - Validate DMABuf imports in compute VMs
   - Add RAS ACA framework
   - PSP 13 fixes
   - Misc code cleanups
   - Replay fixes
   - Atom interpretor PS, WS bounds checking
   - DML2 fixes
   - Audio fixes
   - DCN 3.5 Z state fixes
   - Remove deprecated ida_simple usage
   - UBSAN fixes
   - RAS fixes
   - Enable seq64 infrastructure
   - DC color block enablement
   - Documentation updates
   - DC documentation updates
   - DMCUB updates
   - ATHUB 4.1 support
   - LSDMA 7.0 support
   - JPEG DPG support
   - IH 7.0 support
   - HDP 7.0 support
   - VCN 5.0 support
   - SMU 13.0.6 updates
   - NBIO 7.11 updates
   - SDMA 6.1 updates
   - MMHUB 3.3 updates
   - DCN 3.5.1 support
   - NBIF 6.3.1 support
   - VPE 6.1.1 support

  amdkfd:
   - Validate DMABuf imports in compute VMs
   - SVM fixes
   - Trap handler updates and enhancements
   - Fix cache size reporting
   - Relocate the trap handler

  radeon:
   - Atom interpretor PS, WS bounds checking
   - Misc code cleanups

  xe:
   - new query for GuC submission version
   - Remove unused persistent exec_queues
   - Add vram frequency sysfs attributes
   - Add the flag XE_VM_BIND_FLAG_DUMPABLE
   - Drop pre-production workarounds
   - Drop kunit tests for unsupported platforms
   - Start pumbling SR-IOV support with memory based interrupts for VF
   - Allow to map BO in GGTT with PAT index corresponding to XE_CACHE_UC
     to work with memory based interrupts
   - Add GuC Doorbells Manager as prep work SR-IOV
   - Implement additional workarounds for xe2 and MTL
   - Program a few registers according to perfomance guide spec for Xe2
   - Fix remaining 32b build issues and enable it back
   - Fix build with CONFIG_DEBUG_FS=n
   - Fix warnings from GuC ABI headers
   - Introduce Relay Communication for SR-IOV for VF <-> GuC <-> PF
   - Release mmap mappings on rpm suspend
   - Disable mid-thread preemption when not properly supported by
     hardware
   - Fix xe_exec by reserving extra fence slot for CPU bind
   - Fix xe_exec with full long running exec queue
   - Canonicalize addresses where needed for Xe2 and add to devcoredum
   - Toggle USM support for Xe2
   - Only allow 1 ufence per exec / bind IOCTL
   - Add GuC firmware loading for Lunar Lake
   - Add XE_VMA_PTE_64K VMA flag

  i915:
   - Add more ADL-N PCI IDs
   - Enable fastboot also on older platforms
   - Early transport for panel replay and PSR
   - New ARL PCI IDs
   - DP TPS4 PHY test pattern support
   - Unify and improve VSC SDP for PSR and non-PSR cases
   - Refactor memory regions and improve debug logging
   - Rework global state serialization
   - Remove unused CDCLK divider fields
   - Unify HDCP connector logging format
   - Use display instead of graphics version in display code
   - Move VBT and opregion debugfs next to the implementation
   - Abstract opregion interface, use opaque type
   - MTL fixes
   - HPD handling fixes
   - Add GuC submission interface version query
   - Atomically invalidate userptr on mmu-notifier
   - Update handling of MMIO triggered reports
   - Don't make assumptions about intel_wakeref_t type
   - Extend driver code of Xe_LPG to Xe_LPG+
   - Add flex arrays to struct i915_syncmap
   - Allow for very slow HuC loading
   - DP tunneling and bandwidth allocation support

  msm:
   - Correct bindings for MSM8976 and SM8650 platforms
   - Start migration of MDP5 platforms to DPU driver
   - X1E80100 MDSS support
   - DPU:
      - Improve DSC allocation, fixing several important corner cases
      - Add support for SDM630/SDM660 platforms
      - Simplify dpu_encoder_phys_ops
      - Apply fixes targeting DSC support with a single DSC encoder
      - Apply fixes for HCTL_EN timing configuration
      - X1E80100 support
      - Add support for YUV420 over DP
   - GPU:
      - fix sc7180 UBWC config
      - fix a7xx LLC config
      - new gpu support: a305B, a750, a702
      - machine support: SM7150 (different power levels than other a618)
      - a7xx devcoredump support

  habanalabs:
   - configure IRQ affinity according to NUMA node
   - move HBM MMU page tables inside the HBM
   - improve device reset
   - check extended PCIe errors

  ivpu:
   - updates to firmware API
   - refactor BO allocation

  imx:
   - use devm_ functions during init

  hisilicon:
   - fix EDID includes

  mgag200:
   - improve ioremap usage
   - convert to struct drm_edid
   - Work around PCI write bursts

  nouveau:
   - disp: use kmemdup()
   - fix EDID includes
   - documentation fixes

  qaic:
   - fixes to BO handling
   - make use of DRM managed release
   - fix order of remove operations

  rockchip:
   - analogix_dp: get encoder port from DT
   - inno_hdmi: support HDMI for RK3128
   - lvds: error-handling fixes

  ssd130x:
   - support SSD133x plus DT bindings

  tegra:
   - fix error handling

  tilcdc:
   - make use of DRM managed release

  v3d:
   - show memory stats in debugfs
   - Support display MMU page size

  vc4:
   - fix error handling in plane prepare_fb
   - fix framebuffer test in plane helpers

  virtio:
   - add venus capset defines

  vkms:
   - fix OOB access when programming the LUT
   - Kconfig improvements

  vmwgfx:
   - unmap surface before changing plane state
   - fix memory leak in error handling
   - documentation fixes
   - list command SVGA_3D_CMD_DEFINE_GB_SURFACE_V4 as invalid
   - fix null-pointer deref in execbuf
   - refactor display-mode probing
   - fix fencing for creating cursor MOBs
   - fix cursor-memory lifetime

  xlnx:
   - fix live video input for ZynqMP DPSUB

  lima:
   - fix memory leak

  loongson:
   - fail if no VRAM present

  meson:
   - switch to new drm_bridge_read_edid() interface

  renesas:
   - add RZ/G2L DU support plus DT bindings

  mxsfb:
   - Use managed mode config

  sun4i:
   - HDMI: updates to atomic mode setting

  mediatek:
   - Add display driver for MT8188 VDOSYS1
   - DSI driver cleanups
   - Filter modes according to hardware capability
   - Fix a null pointer crash in mtk_drm_crtc_finish_page_flip

  etnaviv:
   - enhancements for NPU and MRT support"

* tag 'drm-next-2024-03-13' of https://gitlab.freedesktop.org/drm/kernel: (1420 commits)
  drm/amd/display: Removed redundant @ symbol to fix kernel-doc warnings in -next repo
  drm/amd/pm: wait for completion of the EnableGfxImu message
  drm/amdgpu/soc21: add mode2 asic reset for SMU IP v14.0.1
  drm/amdgpu: add smu 14.0.1 support
  drm/amdgpu: add VPE 6.1.1 discovery support
  drm/amdgpu/vpe: add VPE 6.1.1 support
  drm/amdgpu/vpe: don't emit cond exec command under collaborate mode
  drm/amdgpu/vpe: add collaborate mode support for VPE
  drm/amdgpu/vpe: add PRED_EXE and COLLAB_SYNC OPCODE
  drm/amdgpu/vpe: add multi instance VPE support
  drm/amdgpu/discovery: add nbif v6_3_1 ip block
  drm/amdgpu: Add nbif v6_3_1 ip block support
  drm/amdgpu: Add pcie v6_1_0 ip headers (v5)
  drm/amdgpu: Add nbif v6_3_1 ip headers (v5)
  arch/powerpc: Remove <linux/fb.h> from backlight code
  macintosh/via-pmu-backlight: Include <linux/backlight.h>
  fbdev/chipsfb: Include <linux/backlight.h>
  drm/etnaviv: Restore some id values
  drm/amdkfd: make kfd_class constant
  drm/amdgpu: add ring timeout information in devcoredump
  ...
2024-03-13 18:34:05 -07:00
Linus Torvalds
07abb19a9b Power management updates for 6.9-rc1
- Allow the Energy Model to be updated dynamically (Lukasz Luba).
 
  - Add support for LZ4 compression algorithm to the hibernation image
    creation and loading code (Nikhil V).
 
  - Fix and clean up system suspend statistics collection (Rafael
    Wysocki).
 
  - Simplify device suspend and resume handling in the power management
    core code (Rafael Wysocki).
 
  - Fix PCI hibernation support description (Yiwei Lin).
 
  - Make hibernation take set_memory_ro() return values into account as
    appropriate (Christophe Leroy).
 
  - Set mem_sleep_current during kernel command line setup to avoid an
    ordering issue with handling it (Maulik Shah).
 
  - Fix wake IRQs handling when pm_runtime_force_suspend() is used as a
    driver's system suspend callback (Qingliang Li).
 
  - Simplify pm_runtime_get_if_active() usage and add a replacement for
    pm_runtime_put_autosuspend() (Sakari Ailus).
 
  - Add a tracepoint for runtime_status changes tracking (Vilas Bhat).
 
  - Fix section title markdown in the runtime PM documentation (Yiwei
    Lin).
 
  - Enable preferred core support in the amd-pstate cpufreq driver (Meng
    Li).
 
  - Fix min_perf assignment in amd_pstate_adjust_perf() and make the
    min/max limit perf values in amd-pstate always stay within the
    (highest perf, lowest perf) range (Tor Vic, Meng Li).
 
  - Allow intel_pstate to assign model-specific values to strings used in
    the EPP sysfs interface and make it do so on Meteor Lake (Srinivas
    Pandruvada).
 
  - Drop long-unused cpudata::prev_cummulative_iowait from the
    intel_pstate cpufreq driver (Jiri Slaby).
 
  - Prevent scaling_cur_freq from exceeding scaling_max_freq when the
    latter is an inefficient frequency (Shivnandan Kumar).
 
  - Change default transition delay in cpufreq to 2ms (Qais Yousef).
 
  - Remove references to 10ms minimum sampling rate from comments in the
    cpufreq code (Pierre Gondois).
 
  - Honour transition_latency over transition_delay_us in cpufreq (Qais
    Yousef).
 
  - Stop unregistering cpufreq cooling on CPU hot-remove (Viresh Kumar).
 
  - General enhancements / cleanups to ARM cpufreq drivers (tianyu2,
    Nícolas F. R. A. Prado, Erick Archer, Arnd Bergmann, Anastasia
    Belova).
 
  - Update cpufreq-dt-platdev to block/approve devices (Richard Acayan).
 
  - Make the SCMI cpufreq driver get a transition delay value from
    firmware (Pierre Gondois).
 
  - Prevent the haltpoll cpuidle governor from shrinking guest
    poll_limit_ns below grow_start (Parshuram Sangle).
 
  - Avoid potential overflow in integer multiplication when computing
    cpuidle state parameters (C Cheng).
 
  - Adjust MWAIT hint target C-state computation in the ACPI cpuidle
    driver and in intel_idle to return a correct value for C0 (He
    Rongguang).
 
  - Address multiple issues in the TPMI RAPL driver and add support for
    new platforms (Lunar Lake-M, Arrow Lake) to Intel RAPL (Zhang Rui).
 
  - Fix freq_qos_add_request() return value check in dtpm_cpu (Daniel
    Lezcano).
 
  - Fix kernel-doc for dtpm_create_hierarchy() (Yang Li).
 
  - Fix file leak in get_pkg_num() in x86_energy_perf_policy (Samasth
    Norway Ananda).
 
  - Fix cpupower-frequency-info.1 man page typo (Jan Kratochvil).
 
  - Fix a couple of warnings in the OPP core code related to W=1
    builds (Viresh Kumar).
 
  - Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h (Viresh
    Kumar).
 
  - Extend dev_pm_opp_data with turbo support (Sibi Sankar).
 
  - dt-bindings: drop maxItems from inner items (David Heidelberg).
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Merge tag 'pm-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "From the functional perspective, the most significant change here is
  the addition of support for Energy Models that can be updated
  dynamically at run time.

  There is also the addition of LZ4 compression support for hibernation,
  the new preferred core support in amd-pstate, new platforms support in
  the Intel RAPL driver, new model-specific EPP handling in intel_pstate
  and more.

  Apart from that, the cpufreq default transition delay is reduced from
  10 ms to 2 ms (along with some related adjustments), the system
  suspend statistics code undergoes a significant rework and there is a
  usual bunch of fixes and code cleanups all over.

  Specifics:

   - Allow the Energy Model to be updated dynamically (Lukasz Luba)

   - Add support for LZ4 compression algorithm to the hibernation image
     creation and loading code (Nikhil V)

   - Fix and clean up system suspend statistics collection (Rafael
     Wysocki)

   - Simplify device suspend and resume handling in the power management
     core code (Rafael Wysocki)

   - Fix PCI hibernation support description (Yiwei Lin)

   - Make hibernation take set_memory_ro() return values into account as
     appropriate (Christophe Leroy)

   - Set mem_sleep_current during kernel command line setup to avoid an
     ordering issue with handling it (Maulik Shah)

   - Fix wake IRQs handling when pm_runtime_force_suspend() is used as a
     driver's system suspend callback (Qingliang Li)

   - Simplify pm_runtime_get_if_active() usage and add a replacement for
     pm_runtime_put_autosuspend() (Sakari Ailus)

   - Add a tracepoint for runtime_status changes tracking (Vilas Bhat)

   - Fix section title markdown in the runtime PM documentation (Yiwei
     Lin)

   - Enable preferred core support in the amd-pstate cpufreq driver
     (Meng Li)

   - Fix min_perf assignment in amd_pstate_adjust_perf() and make the
     min/max limit perf values in amd-pstate always stay within the
     (highest perf, lowest perf) range (Tor Vic, Meng Li)

   - Allow intel_pstate to assign model-specific values to strings used
     in the EPP sysfs interface and make it do so on Meteor Lake
     (Srinivas Pandruvada)

   - Drop long-unused cpudata::prev_cummulative_iowait from the
     intel_pstate cpufreq driver (Jiri Slaby)

   - Prevent scaling_cur_freq from exceeding scaling_max_freq when the
     latter is an inefficient frequency (Shivnandan Kumar)

   - Change default transition delay in cpufreq to 2ms (Qais Yousef)

   - Remove references to 10ms minimum sampling rate from comments in
     the cpufreq code (Pierre Gondois)

   - Honour transition_latency over transition_delay_us in cpufreq (Qais
     Yousef)

   - Stop unregistering cpufreq cooling on CPU hot-remove (Viresh Kumar)

   - General enhancements / cleanups to ARM cpufreq drivers (tianyu2,
     Nícolas F. R. A. Prado, Erick Archer, Arnd Bergmann, Anastasia
     Belova)

   - Update cpufreq-dt-platdev to block/approve devices (Richard Acayan)

   - Make the SCMI cpufreq driver get a transition delay value from
     firmware (Pierre Gondois)

   - Prevent the haltpoll cpuidle governor from shrinking guest
     poll_limit_ns below grow_start (Parshuram Sangle)

   - Avoid potential overflow in integer multiplication when computing
     cpuidle state parameters (C Cheng)

   - Adjust MWAIT hint target C-state computation in the ACPI cpuidle
     driver and in intel_idle to return a correct value for C0 (He
     Rongguang)

   - Address multiple issues in the TPMI RAPL driver and add support for
     new platforms (Lunar Lake-M, Arrow Lake) to Intel RAPL (Zhang Rui)

   - Fix freq_qos_add_request() return value check in dtpm_cpu (Daniel
     Lezcano)

   - Fix kernel-doc for dtpm_create_hierarchy() (Yang Li)

   - Fix file leak in get_pkg_num() in x86_energy_perf_policy (Samasth
     Norway Ananda)

   - Fix cpupower-frequency-info.1 man page typo (Jan Kratochvil)

   - Fix a couple of warnings in the OPP core code related to W=1 builds
     (Viresh Kumar)

   - Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h (Viresh
     Kumar)

   - Extend dev_pm_opp_data with turbo support (Sibi Sankar)

   - dt-bindings: drop maxItems from inner items (David Heidelberg)"

* tag 'pm-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (95 commits)
  dt-bindings: opp: drop maxItems from inner items
  OPP: debugfs: Fix warning around icc_get_name()
  OPP: debugfs: Fix warning with W=1 builds
  cpufreq: Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h
  OPP: Extend dev_pm_opp_data with turbo support
  Fix cpupower-frequency-info.1 man page typo
  cpufreq: scmi: Set transition_delay_us
  firmware: arm_scmi: Populate fast channel rate_limit
  firmware: arm_scmi: Populate perf commands rate_limit
  cpuidle: ACPI/intel: fix MWAIT hint target C-state computation
  PM: sleep: wakeirq: fix wake irq warning in system suspend
  powercap: dtpm: Fix kernel-doc for dtpm_create_hierarchy() function
  cpufreq: Don't unregister cpufreq cooling on CPU hotplug
  PM: suspend: Set mem_sleep_current during kernel command line setup
  cpufreq: Honour transition_latency over transition_delay_us
  cpufreq: Limit resolving a frequency to policy min/max
  Documentation: PM: Fix runtime_pm.rst markdown syntax
  cpufreq: amd-pstate: adjust min/max limit perf
  cpufreq: Remove references to 10ms min sampling rate
  cpufreq: intel_pstate: Update default EPPs for Meteor Lake
  ...
2024-03-13 11:40:06 -07:00
Linus Torvalds
a070a08d00 Core:
- Log a message when unused PM domains gets disabled
  - Scale down parent/child performance states in the reverse order
 
 Providers:
  - qcom: rpmpd: Add power domains support for MSM8974, MSM8974PRO, PMA8084
    and PM8841
  - renesas: rcar-gen4-sysc: Reduce atomic delays
  - renesas: rcar-sysc: Adjust the waiting time to cover the worst case
  - renesas: r8a779h0-sysc: Add support for the r8a779h0 PM domains
  - imx: imx8mp-blk-ctrl: Add the fdcc clock to the hdmimix domains
  - imx: imx8mp-blk-ctrl: Error out if domains are missing in DT
 
 Improve support for multiple PM domains:
  - Add two helper functions to attach/detach multiple PM domains
  - Convert a couple of drivers to use the new helper functions
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Merge tag 'pmdomain-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
 "Core:
   - Log a message when unused PM domains gets disabled
   - Scale down parent/child performance states in the reverse order

  Providers:
   - qcom: rpmpd: Add power domains support for MSM8974, MSM8974PRO,
     PMA8084 and PM8841
   - renesas: rcar-gen4-sysc: Reduce atomic delays
   - renesas: rcar-sysc: Adjust the waiting time to cover the worst case
   - renesas: r8a779h0-sysc: Add support for the r8a779h0 PM domains
   - imx: imx8mp-blk-ctrl: Add the fdcc clock to the hdmimix domains
   - imx: imx8mp-blk-ctrl: Error out if domains are missing in DT

  Improve support for multiple PM domains:
   - Add two helper functions to attach/detach multiple PM domains
   - Convert a couple of drivers to use the new helper functions"

* tag 'pmdomain-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (22 commits)
  pmdomain: renesas: rcar-gen4-sysc: Reduce atomic delays
  pmdomain: renesas: Adjust the waiting time to cover the worst case
  pmdomain: qcom: rpmpd: Add MSM8974PRO+PMA8084 power domains
  pmdomain: qcom: rpmpd: Add MSM8974+PM8841 power domains
  pmdomain: core: constify of_phandle_args in add device and subdomain
  pmdomain: core: constify of_phandle_args in xlate
  media: venus: Convert to dev_pm_domain_attach|detach_list() for vcodec
  remoteproc: qcom_q6v5_adsp: Convert to dev_pm_domain_attach|detach_list()
  remoteproc: imx_rproc: Convert to dev_pm_domain_attach|detach_list()
  remoteproc: imx_dsp_rproc: Convert to dev_pm_domain_attach|detach_list()
  PM: domains: Add helper functions to attach/detach multiple PM domains
  pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain
  pmdomain: mediatek: Use devm_platform_ioremap_resource() in init_scp()
  pmdomain: renesas: r8a779h0-sysc: Add r8a779h0 support
  pmdomain: imx8mp-blk-ctrl: Error out if domains are missing in DT
  pmdomain: ti: Add a null pointer check to the omap_prm_domain_init
  pmdomain: renesas: rcar-gen4-sysc: Remove unneeded includes
  pmdomain: core: Print a message when unused power domains are disabled
  pmdomain: qcom: rpmpd: Keep one RPM handle for all RPMPDs
  pmdomain: core: Scale down parent/child performance states in reverse order
  ...
2024-03-13 11:33:10 -07:00
Linus Torvalds
6cdebf62a1 spi: Updates for v6.9
This release sees some exciting changes from David Lechner which
 implements some optimisations that have been talked about for a long
 time which allows client drivers to pre-prepare SPI messages for
 repeated or low latency use.  This lets us move work out of latency
 sensitive paths and avoid repeating work for frequently performed
 operations.  As well as being useful in itself this will also be used in
 future to allow controllers to directly trigger SPI operations (eg, from
 interrupts).
 
 Otherwise this release has mostly been focused on cleanups, plus a
 couple of new devices:
 
  - Support for pre-optimising messages.
  - A big set of updates from Uwe Kleine-König moving drivers to use APIs
    with more modern terminology for controllers.
  - Major overhaul of the s3c64xx driver.
  - Support for Google GS101 and Samsung Exynos850.
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Merge tag 'spi-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "This release sees some exciting changes from David Lechner which
  implements some optimisations that have been talked about for a long
  time which allows client drivers to pre-prepare SPI messages for
  repeated or low latency use. This lets us move work out of latency
  sensitive paths and avoid repeating work for frequently performed
  operations. As well as being useful in itself this will also be used
  in future to allow controllers to directly trigger SPI operations (eg,
  from interrupts).

  Otherwise this release has mostly been focused on cleanups, plus a
  couple of new devices:

   - Support for pre-optimising messages

   - A big set of updates from Uwe Kleine-König moving drivers to use
     APIs with more modern terminology for controllers

   - Major overhaul of the s3c64xx driver

   - Support for Google GS101 and Samsung Exynos850"

* tag 'spi-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (122 commits)
  spi: Introduce SPI_INVALID_CS and is_valid_cs()
  spi: Fix types of the last chip select storage variables
  spi: Consistently use BIT for cs_index_mask
  spi: Exctract spi_dev_check_cs() helper
  spi: Exctract spi_set_all_cs_unused() helper
  spi: s3c64xx: switch exynos850 to new port config data
  spi: s3c64xx: switch gs101 to new port config data
  spi: s3c64xx: deprecate fifo_lvl_mask, rx_lvl_offset and port_id
  spi: s3c64xx: get rid of the OF alias ID dependency
  spi: s3c64xx: introduce s3c64xx_spi_set_port_id()
  spi: s3c64xx: let the SPI core determine the bus number
  spi: s3c64xx: allow FIFO depth to be determined from the compatible
  spi: s3c64xx: retrieve the FIFO depth from the device tree
  spi: s3c64xx: determine the fifo depth only once
  spi: s3c64xx: allow full FIFO masks
  spi: s3c64xx: define a magic value
  spi: dt-bindings: introduce FIFO depth properties
  spi: axi-spi-engine: use struct_size() macro
  spi: axi-spi-engine: use __counted_by() attribute
  spi: axi-spi-engine: remove p from struct spi_engine_message_state
  ...
2024-03-13 11:07:37 -07:00
Rafael J. Wysocki
7874b581c7 Merge branch 'pm-runtime'
Merge changes related to the runtime power management of devices for
6.9-rc1:

 - Simplify pm_runtime_get_if_active() usage and add a replacement for
   pm_runtime_put_autosuspend() (Sakari Ailus).

 - Add a tracepoint for runtime_status changes tracking (Vilas Bhat).

 - Fix section title markdown in the runtime PM documentation (Yiwei
   Lin).

* pm-runtime:
  Documentation: PM: Fix runtime_pm.rst markdown syntax
  PM: runtime: add tracepoint for runtime_status changes
  PM: runtime: Add pm_runtime_put_autosuspend() replacement
  PM: runtime: Simplify pm_runtime_get_if_active() usage
2024-03-11 15:21:00 +01:00
Niklas Söderlund
b14257abe7 media: rcar-isp: Disallow unbind of devices
It is not safe to unbind and then rebind a subdevice in the rcar-vin
pipeline. Depending on what subdevice and in what order a device is
rebound the rcar-vin driver can misbehave.

Until this can be solved suppress the files in sysfs which allows for
this. This is in line with what is done for other subdevices exclusively
use with the rcar-vin pipeline, e.g. rcar-csi2.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-03-07 16:35:13 +01:00
Ahelenia Ziemiańska
6a57a21943 Normalise "name (ad@dr)" MODULE_AUTHORs to "name <ad@dr>"
Found with git grep 'MODULE_AUTHOR(".*([^)]*@'
Fixed with
  sed -i '/MODULE_AUTHOR(".*([^)]*@/{s/ (/ </g;s/)"/>"/;s/)and/> and/}' \
    $(git grep -l 'MODULE_AUTHOR(".*([^)]*@')

Also:
  in drivers/media/usb/siano/smsusb.c normalise ", INC" to ", Inc";
     this is what every other MODULE_AUTHOR for this company says,
     and it's what the header says
  in drivers/sbus/char/openprom.c normalise a double-spaced separator;
     this is clearly copied from the copyright header,
     where the names are aligned on consecutive lines thusly:
      * Linux/SPARC PROM Configuration Driver
      * Copyright (C) 1996 Thomas K. Dyas (tdyas@noc.rutgers.edu)
      * Copyright (C) 1996 Eddie C. Dost  (ecd@skynet.be)
     but the authorship branding is single-line

Link: https://lkml.kernel.org/r/mk3geln4azm5binjjlfsgjepow4o73domjv6ajybws3tz22vb3@tarta.nabijaczleweli.xyz
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-03-06 13:07:39 -08:00
Benjamin Gaignard
65e6a2773d media: usbtv: Remove useless locks in usbtv_video_free()
Remove locks calls in usbtv_video_free() because
are useless and may led to a deadlock as reported here:
https://syzkaller.appspot.com/x/bisect.txt?x=166dc872180000
Also remove usbtv_stop() call since it will be called when
unregistering the device.

Before 'c838530d230b' this issue would only be noticed if you
disconnect while streaming and now it is noticeable even when
disconnecting while not streaming.

Fixes: c838530d23 ("media: media videobuf2: Be more flexible on the number of queue stored buffers")
Fixes: f3d27f34fd ("[media] usbtv: Add driver for Fushicai USBTV007 video frame grabber")

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Tested-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: fix minor spelling mistake in log message]
2024-03-04 12:58:38 +01:00
Arnd Bergmann
bfb1b99802 media: mediatek: vcodec: avoid -Wcast-function-type-strict warning
The ipi handler here tries hard to maintain const-ness of its argument,
but by doing that causes a warning about function type casts:

drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_vpu.c:38:32: error: cast from 'mtk_vcodec_ipi_handler' (aka 'void (*)(void *, unsigned int, void *)') to 'ipi_handler_t' (aka 'void (*)(const void *, unsigned int, void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
   38 |         ipi_handler_t handler_const = (ipi_handler_t)handler;
      |                                       ^~~~~~~~~~~~~~~~~~~~~~

Remove the hack and just use a non-const argument.

Fixes: bf1d556ad4 ("media: mtk-vcodec: abstract firmware interface")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ricardo Ribalda <ribalda@chromium.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2024-02-28 16:00:33 +01:00