The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
BACKGROUND
==========
When multiple work items are queued to a workqueue, their execution order
doesn't match the queueing order. They may get executed in any order and
simultaneously. When fully serialized execution - one by one in the queueing
order - is needed, an ordered workqueue should be used which can be created
with alloc_ordered_workqueue().
However, alloc_ordered_workqueue() was a later addition. Before it, an
ordered workqueue could be obtained by creating an UNBOUND workqueue with
@max_active==1. This originally was an implementation side-effect which was
broken by 4c16bd327c ("workqueue: restore WQ_UNBOUND/max_active==1 to be
ordered"). Because there were users that depended on the ordered execution,
5c0338c687 ("workqueue: restore WQ_UNBOUND/max_active==1 to be ordered")
made workqueue allocation path to implicitly promote UNBOUND workqueues w/
@max_active==1 to ordered workqueues.
While this has worked okay, overloading the UNBOUND allocation interface
this way creates other issues. It's difficult to tell whether a given
workqueue actually needs to be ordered and users that legitimately want a
min concurrency level wq unexpectedly gets an ordered one instead. With
planned UNBOUND workqueue updates to improve execution locality and more
prevalence of chiplet designs which can benefit from such improvements, this
isn't a state we wanna be in forever.
This patch series audits all callsites that create an UNBOUND workqueue w/
@max_active==1 and converts them to alloc_ordered_workqueue() as necessary.
WHAT TO LOOK FOR
================
The conversions are from
alloc_workqueue(WQ_UNBOUND | flags, 1, args..)
to
alloc_ordered_workqueue(flags, args...)
which don't cause any functional changes. If you know that fully ordered
execution is not ncessary, please let me know. I'll drop the conversion and
instead add a comment noting the fact to reduce confusion while conversion
is in progress.
If you aren't fully sure, it's completely fine to let the conversion
through. The behavior will stay exactly the same and we can always
reconsider later.
As there are follow-up workqueue core changes, I'd really appreciate if the
patch can be routed through the workqueue tree w/ your acks. Thanks.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: linux-media@vger.kernel.org
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
As the kmalloc may return NULL pointer,
it should be better to check the return value
in order to avoid NULL poineter dereference,
same as the others.
Fixes: cb1d3a3363 ("[media] coda: add CODA7541 JPEG support")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
As the coda_iram_alloc may return NULL pointer,
it should be better to check the return value
in order to avoid NULL poineter dereference,
same as the others.
Fixes: b313bcc9a4 ("[media] coda: simplify IRAM setup")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
As kmalloc can return NULL pointer, it should be better to
check the return value and return error, same as
coda_jpeg_decode_header.
Fixes: 96f6f62c46 ("media: coda: jpeg: add CODA960 JPEG encoder support")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
coda9_jpeg_dec_huff_setup() never returns anything but 0. Drop
return value and superfluous error handling at the call site.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Let VIDIOC_ENUM_FRAMEINTERVALS return -EINVAL if userspace queries
frame intervals for frame sizes unsupported by the encoder. Fixes the
following v4l2-compliance failure:
fail: v4l2-test-formats.cpp(123): found frame intervals for invalid size 47x16
fail: v4l2-test-formats.cpp(282): node->codec_mask & STATEFUL_ENCODER
test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL
[hverkuil: drop incorrect 'For decoder devices, return -ENOTTY.' in the commit log]
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Set default colorspace to SRGB for JPEG encoder and decoder devices,
to fix the following v4l2-compliance test failure:
test VIDIOC_TRY_FMT: OK
fail: v4l2-test-formats.cpp(818): fmt_raw.g_colorspace() != V4L2_COLORSPACE_SRGB
Also explicitly set transfer function, YCbCr encoding and quantization
range, as required by v4l2-compliance for the JPEG encoded side.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Add H264 level 1.0, 4.1, 4.2 to the list of supported formats.
While the hardware does not fully support these levels, it does support
most of them. The constraints on frame size and pixel formats already
cover the limitation.
This fixes negotiation of level on GStreamer 1.17.1.
Cc: stable@vger.kernel.org
Fixes: 42a68012e6 ("media: coda: add read-only h.264 decoder profile/level controls")
Suggested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
The CODA960 manual states that ASO/FMO features of baseline are not
supported, so for this reason this driver should only report
constrained baseline support.
This fixes negotiation issue with constrained baseline content
on GStreamer 1.17.1.
ASO/FMO features are unsupported for the encoder and untested for the
decoder because there is currently no userspace support. Neither GStreamer
parsers nor FFMPEG parsers support ASO/FMO.
Cc: stable@vger.kernel.org
Fixes: 42a68012e6 ("media: coda: add read-only h.264 decoder profile/level controls")
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Tested-by: Pascal Speck <kernel@iktek.de>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Stop bailing out on JPEG header parsing errors during streamon.
This allows userspace to provide valid output buffers later and
fixes a v4l2-compliance streaming test failure:
fail: v4l2-test-buffers.cpp(1429): node->streamon(q.g_type())
test MMAP (no poll): FAIL
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
If JPEG header parsing fails, output a single message instead of two
messages that say the same thing.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
If decoding fails because the output buffer does not contain a
valid header, set the error flag on the returned capture buffer.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
The JPEG decoder in the CODA960 VPU can downscale images while decoding,
with a factor of 1/2, 1/4, or 1/8.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
If the decoder prepare_run callback returns an error, the hardware
is never started and v4l2_m2m_job_finish() is called immediately,
currently in every error path.
Remove the duplicated job_finish calls from the error paths and reuse
the v4l2_m2m_job_finish() at the end of coda_pic_run_work instead.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Use v4l2_disable_ioctl() to disable the stateful encoder ioctls
VIDIOC_ENUM_FRAMEINTERVALS, VIDIOC_G_PARM, and VIDIOC_S_PARM for
the jpeg encoder device, to fix this v4l2-compliance test failure:
fail: v4l2-test-formats.cpp(68): node->is_m2m && !(node->codec_mask & STATEFUL_ENCODER)
test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL
fail: v4l2-test-formats.cpp(1363): node->is_m2m && !is_stateful_enc
test VIDIOC_G/S_PARM: FAIL
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Use v4l2_disable_ioctl() to disable the encoder ioctls
VIDIOC_ENUM_FRAMESIZES, VIDIOC_ENUM_FRAMEINTERVALS, VIDIOC_G_PARM, and
VIDIOC_S_PARM, to fix this v4l2-compliance test failure:
fail: v4l2-test-formats.cpp(1363): node->is_m2m && !is_stateful_enc
test VIDIOC_G/S_PARM: FAIL
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Use v4l2_disable_ioctl() to disable the VIDIOC_TRY_ENCODER_CMD and
VIDIOC_ENCODER_CMD ioctls on decoder video devices and the
VIDIOC_TRY_DECODER_CMD and VIDIOC_DECODER_CMD ioctls on encoder
video devices.
This allows to drop the coda_try_encoder/decoder_cmd() functions
and to use v4l2_m2m_ioctl_try_encoder/decoder_cmd() directly.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
media Kconfig has two entries associated to V4L API:
VIDEO_DEV and VIDEO_V4L2.
On Kernel 2.6.x, there were two V4L APIs, each one with its own flag.
VIDEO_DEV were meant to:
1) enable Video4Linux and make its Kconfig options to appear;
2) it makes the Kernel build the V4L core.
while VIDEO_V4L2 where used to distinguish between drivers that
implement the newer API and drivers that implemented the former one.
With time, such meaning changed, specially after the removal of
all V4L version 1 drivers.
At the current implementation, VIDEO_DEV only does (1): it enables
the media options related to V4L, that now has:
menu "Video4Linux options"
visible if VIDEO_DEV
source "drivers/media/v4l2-core/Kconfig"
endmenu
but it doesn't affect anymore the V4L core drivers.
The rationale is that the V4L2 core has a "soft" dependency
at the I2C bus, and now requires to select a number of other
Kconfig options:
config VIDEO_V4L2
tristate
depends on (I2C || I2C=n) && VIDEO_DEV
select RATIONAL
select VIDEOBUF2_V4L2 if VIDEOBUF2_CORE
default (I2C || I2C=n) && VIDEO_DEV
In the past, merging them would be tricky, but it seems that it is now
possible to merge those symbols, in order to simplify V4L dependencies.
Let's keep VIDEO_DEV, as this one is used on some make *defconfig
configurations.
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com> # for meson-vdec & meson-ge2d
Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
Acked-by: Łukasz Stelmach <l.stelmach@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Do some adjustments at the per-vendor Kconfig, adding a comment at
the beginning in order to identify the manufacturer, and adjust
a few entries to make them look more uniform.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> # For sunxi
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
