Needed for mips and sh platforms
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

This patch fixes a kernel panic which occurs when buf_list is empty. This can
happen occasionally when user space is under heavy load (e.g. due to image
processing on the CPU) and new buffers aren't re-queued fast enough. In that
case, vb2_start_streaming_called can return true, but when the spinlock
is taken and sur40_poll attempts to fetch the next buffer from buf_list, the
list is in fact empty.

This patch needs to be applied on top of the queued one adding V4L2 support
to the sur40 driver.
Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The slock spinlock in the cx23885_dev struct is only initialised if analogue
video is being used, but is used in other places too, leading to the attached
lockdep complaint.

Move the lock initialisation so that it is done unconditionally.

INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 4413 Comm: scandvb Tainted: G        W       4.0.0-rc1-fsdevel+ #25
Hardware name: System manufacturer System Product Name/P5Q PRO TURBO, BIOS 0701    10/08/2012
 0000000000000000 ffff880129d779d8 ffffffff8162bbdf 0000000000000006
 0000000000000000 ffff880129d77aa8 ffffffff810780e3 0000000000000001
 0000000000000046 0000000000000004 ffffffff81c3f180 0000000000000000
Call Trace:
 [<ffffffff8162bbdf>] dump_stack+0x4c/0x65
 [<ffffffff810780e3>] __lock_acquire+0x7b5/0x1a0e
 [<ffffffff810799ee>] lock_acquire+0x97/0x10c
 [<ffffffffa006494e>] ? cx23885_buf_queue+0x69/0x142 [cx23885]
 [<ffffffff8102e9bc>] ? amd_set_subcaches+0x19b/0x19b
 [<ffffffff816313b4>] _raw_spin_lock_irqsave+0x36/0x4a
 [<ffffffffa006494e>] ? cx23885_buf_queue+0x69/0x142 [cx23885]
 [<ffffffffa006494e>] cx23885_buf_queue+0x69/0x142 [cx23885]
 [<ffffffffa00662cb>] buffer_queue+0x17/0x19 [cx23885]
 [<ffffffffa00382d5>] __enqueue_in_driver+0x6a/0x6f [videobuf2_core]
 [<ffffffffa0038ead>] vb2_start_streaming+0x37/0x129 [videobuf2_core]
 [<ffffffffa003a6c0>] vb2_internal_streamon+0xc5/0x105 [videobuf2_core]
 [<ffffffffa003b889>] __vb2_init_fileio+0x224/0x286 [videobuf2_core]
 [<ffffffffa003bcc0>] ? vb2_thread_start+0x7b/0x15f [videobuf2_core]
 [<ffffffffa0050182>] ? vb2_dvb_start_feed+0x86/0x86 [videobuf2_dvb]
 [<ffffffffa003bd06>] vb2_thread_start+0xc1/0x15f [videobuf2_core]
 [<ffffffff8150d393>] ? dmx_section_feed_start_filtering+0x2f/0x14f
 [<ffffffffa0050157>] vb2_dvb_start_feed+0x5b/0x86 [videobuf2_dvb]
 [<ffffffff8150d461>] dmx_section_feed_start_filtering+0xfd/0x14f
 [<ffffffff8150afc7>] dvb_dmxdev_filter_start+0x23f/0x315
 [<ffffffff8150b6ad>] dvb_demux_do_ioctl+0x1fb/0x556
 [<ffffffff81509e94>] dvb_usercopy+0xb4/0x11c
 [<ffffffff8150b4b2>] ? dvb_dmxdev_ts_callback+0xd0/0xd0
 [<ffffffff8150a11a>] dvb_demux_ioctl+0x10/0x14
 [<ffffffff81144ac4>] do_vfs_ioctl+0x3c1/0x474
 [<ffffffff8126f181>] ? file_has_perm+0x5b/0x7f
 [<ffffffff810bf6ca>] ? __audit_syscall_entry+0xbc/0xde
 [<ffffffff81144bcc>] SyS_ioctl+0x55/0x7a
 [<ffffffff81631d52>] system_call_fastpath+0x12/0x17
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Removes some functions that are not used anywhere:
s5p_jpeg_input_raw_y16() s5p_jpeg_timer_disable() s5p_jpeg_timer_enable().

This was partially found by using a static code analysis program called
cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

JPEG codecs on Exynos4 and Exynos3250 SoCs utilize different number
of planes for storing the raw image data, depending on the format
of the image being processed. For the unused planes a random data
was being written to the related registers. Regardless of the fact
that this seemed not to be harmful, fix the issue for clarity reasons.
Reported-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

JPEG IP found in Exynos5420 is similar to what is in Exynos3250, but
there are some subtle differences which this patch takes into account.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Remove target from Makefile: this driver no longer exists.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The TPG generates multiple static or dynamic test patterns. The driver
currently hardcodes the pattern to the moving box pattern.
Signed-off-by: Christian Kohn <christian.kohn@xilinx.com>
Signed-off-by: Hyun Kwon <hyun.kwon@xilinx.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The Video Timing Controller (VTC) includes a timing detector and/or a
timing generator. Only the generator is currently supported.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Xilinx platforms have no hardwired video capture or video processing
interface. Users create capture and memory to memory processing
pipelines in the FPGA fabric to suit their particular needs, by
instantiating video IP cores from a large library.

The Xilinx Video IP core is a framework that models a video pipeline
described in the device tree and expose the pipeline to userspace
through the media controller and V4L2 APIs.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hyun Kwon <hyun.kwon@xilinx.com>
Signed-off-by: Radhey Shyam Pandey <radheys@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

The function fills a link data structure with the device node and port
number at both the local and remote ends of a link defined by one of its
endpoint nodes.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Add VUY8 24 bits bus format, V4L2_MBUS_FMT_VUY8_1X24.
Signed-off-by: Hyun Kwon <hyun.kwon@xilinx.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Keep the formats sorted by type, bus_width, bits per component, samples
per pixel and order of subsamples, in that order.
Signed-off-by: Hyun Kwon <hyun.kwon@xilinx.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Add support and documentation for two media bus formats:
MEDIA_BUS_FMT_RBG888_1X24 and MEDIA_BUS_FMT_RGB888_1X32_PADHI
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Currently, there's no documentation for the structure. Add a
kernel-doc nano documentation to it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Disable all fbuf-related functionality if ivtvfb isn't loaded. This
caused various v4l2-compliance failures.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Replace the old g/s_crop ioctls by the new g/s_selection ioctls.
This solves a v4l2-compliance failure, and it is something that needs
to be done anyway to eventually be able to remove the old g/s_crop
ioctl ops.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Federico Vaga <federico.vaga@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

There is no usb_put_dev() on failure paths in usbvision_probe().

Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

While running v4l2-compliance tests on vivid I suddenly got errors due to
a call to vmalloc_user with size 0 from vb2.

Digging deeper into the cause I discovered that this was due to the fact that
struct v4l2_plane_pix_format defines bytesperline as a __u16 instead of a __u32.

The test I was running selected a format of 4 * 4096 by 4 * 2048 with a 32
bit pixelformat.

So bytesperline was 4 * 4 * 4096 = 65536, which becomes 0 in a __u16. And
bytesperline * height is suddenly 0 as well. While the vivid driver may be
a virtual driver, it is to be expected that this limit will be hit for real
hardware as well in the near future: 8k deep-color video will already reach
it.

The solution is to change the type to __u32. The only drivers besides vivid
that use the multiplanar API are little-endian ARM and SH platforms (exynos,
ti-vpe, vsp1), so this is safe.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Embed the video_device struct to simplify the error handling and in
order to (eventually) get rid of video_device_alloc/release.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

There is no need to use bulk i2c_transfer() to write single register.
Use write register function instead.
Tested-by: David Howells <dhowells@redhat.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

This driver was replaced by ts2020 driver.
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Change ts2022 driver to ts2020 driver. ts2020 driver supports
both tuner chip models.

That affects TechnoTrend TT-connect S2-4600 DVB-S/S2 device, which
Olli just added.

Cc: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Change ts2022 driver to ts2020 driver. ts2020 driver supports
both tuner chip models.

Cc: Nibble Max <nibble.max@gmail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>