media: pci: cx23885: Replace mdelay() with msleep() and usleep_range() in cx23885_gpio_setup()

cx23885_gpio_setup() is never called in atomic context.
It calls mdelay() to busily wait, which is not necessary.
mdelay() can be replaced with msleep() and usleep_range().

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: pci: cx23885: Replace mdelay() with msleep() and usleep_range() in altera_ci_slot_reset()

altera_ci_slot_reset() is never called in atomic context.
It calls mdelay() to busily wait, which is not necessary.
mdelay() can be replaced with msleep().

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: pci: cobalt: Replace GFP_ATOMIC with GFP_KERNEL in cobalt_probe()

cobalt_probe() is never called in atomic context.
It calls kzalloc() with GFP_ATOMIC, which is not necessary.
GFP_ATOMIC can be replaced with GFP_KERNEL.

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: i2c: vs6624: Replace mdelay() with msleep() and usleep_range() in vs6624_probe()

vs6624_probe() is never called in atomic context.
It calls mdelay() to busily wait, which is not necessary.
mdelay() can be replaced with msleep() and usleep_range().

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: i2c: adv7842: Replace mdelay() with msleep() and usleep_range() in adv7842_ddr_ram_test()

adv7842_ddr_ram_test() is never called in atomic context.
It only calls from:
adv7842_ddr_ram_test() <- adv7842_command_ram_test() <- adv7842_ioctl()

adv7842_ddr_ram_test() calls mdelay() to busily wait,
which is not necessary.
mdelay() can be replaced with msleep() and usleep_range().

This is found by a static analysis tool named DCNS written by myself.

Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: video-i2c: hwmon: fix return value from amg88xx_hwmon_init()

PTR_ERR was making any pointer passed an error pointer, and should be
replaced with PTR_ERR_OR_ZERO which checks if is an actual error condition.

Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: adv7180: add g_frame_interval support

Implement g_frame_interval to return the current standard's frame
interval.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: adv7180: fix field type to V4L2_FIELD_ALTERNATE

The ADV7180 and ADV7182 transmit whole fields, bottom field followed
by top (or vice-versa, depending on detected video standard). So
for chips that do not have support for explicitly setting the field
mode via I2P, set the field mode to V4L2_FIELD_ALTERNATE.

I2P converts fields into frames using an edge adaptive algorithm. The
frame rate is the same as the 'field rate': e.g. X fields per second
are now X frames per second.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: rockchip/rga: Fix bad dma_free_attrs() parameter

In rga_remove(), dma_free_attrs is being passed the wrong
cpu address, which triggers an exception if the driver is
removed. Fix it.

Tested on a RK3399 platform, with a bind/unbind cycle.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media.h: remove linux/version.h include

The media.h public header is one of only three public headers that include
linux/version.h. Drop it from media.h. It was only used for an obsolete
define.

It has to be added to media-device.c, since that source relied on media.h
to include it.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: vivid: Fix V4L2_FIELD_ALTERNATE new frame check

The vivid driver will overlay stream time on generated frames. Though,
in interlacing mode V4L2_FIELD_ALTERNATE, each field is separate and
must have the same time to ensure proper render. Though, this time was
only updated every 2 frames as the code was checking against the wrong
counter (frame counter rather then field counter).

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media.h.rst.exceptions: ignore MEDIA-ENT-F-DTV-DECODER

This was kept just for backward compatibility. Solves this warning:
media.h.rst:6: WARNING: undefined label: media-ent-f-dtv-decoder (if the link has no caption the label must precede a section header)

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: coda: add SPS fixup code for frame sizes that are not multiples of 16

The CODA7541 firmware does not set the SPS frame cropping fields to
properly describe coded h.264 streams with frame sizes that are not a
multiple of the macroblock size.
This adds RBSP parsing code and a SPS fixup routine to manually replace
the cropping information in the headers produced by the firmware with
the correct values.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
[hans.verkuil@cisco.com: added explanation of SPS RBSP to comment]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: coda: let CODA960 firmware set frame cropping in SPS header

When encoding h.264, if visible resolution is not aligned to macroblock
size, frame cropping has to be set in the SPS header to produce correct
streams. The CODA960 firmware can do this on its own if asked to.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media-types.rst: fix doc warnings

Fix these warnings when building the documentation:

media.h.rst:6: WARNING: undefined label: media-ent-f-dv-decoder (if the link has no caption the label must precede a section header)
media.h.rst:6: WARNING: undefined label: media-ent-f-dv-encoder (if the link has no caption the label must precede a section header)
media.h.rst:6: WARNING: undefined label: media-ent-f-dv-decoder (if the link has no caption the label must precede a section header)

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: helene: fix xtal frequency setting at power on

This patch fixes crystal frequency setting when power on this device.

Signed-off-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com>
Acked-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: vsp1: Document vsp1_dl_body refcnt

In commit 2d9445db0ee9 ("media: vsp1: Use reference counting for
bodies"), a new field was introduced to the vsp1_dl_body structure to
account for usage tracking of the body.

Document the newly added field in the kerneldoc.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: dvb: get rid of VIDEO_SET_SPU_PALETTE

No upstream drivers use it. It doesn't make any sense to have
a compat32 code for something that nobody uses upstream.

Reported-by: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: uvcvideo: Send a control event when a Control Change interrupt arrives

UVC defines a method of handling asynchronous controls, which sends a
USB packet over the interrupt pipe. This patch implements support for
such packets by sending a control event to the user. Since this can
involve USB traffic and, therefore, scheduling, this has to be done
in a work queue.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: uvcvideo: Handle control pipe protocol STALLs

When a command ends up in a STALL on the control pipe, use the Request
Error Code control to provide a more precise error information to the
user. For example, if a camera is still busy processing a control,
when the same or an interrelated control set request arrives, the
camera can react with a STALL and then return the "Not ready" status
in response to a UVC_VC_REQUEST_ERROR_CODE_CONTROL command. With this
patch the user would then get an EBUSY error code instead of a
generic EPIPE.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: uvcvideo: Remove a redundant check

Event subscribers cannot have a NULL file handle. They are only added
at a single location in the code, and the .fh pointer is used without
checking there.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@intel.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: uvcvideo: Also validate buffers in BULK mode

Just like for ISOC, validate the decoded BULK buffer size when possible.
This avoids sending corrupted or partial buffers to userspace, which may
lead to application crash or run-time failure.

Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
[laurent.pinchart@ideasonboard.com: Move uvc_video_validate_buffer() call to uvc_video_next_buffers()]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: uvcvideo: Add KSMedia 8-bit IR format support

Add support for the 8-bit IR format GUID defined in the Microsoft Kernel
Streaming Media API.

Reported-by: Paul Menzel <pmenzel+linux-media@molgen.mpg.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Menzel <pmenzel+linux-media@molgen.mpg.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: uvcvideo: Fix minor spelling

Provide the missing 't' from straightforward.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: em28xx-cards: disable V4L2 mode for dual tuners

Right now, the code that calculates alternate modes is not ready
for devices with dual tuners. That's ok, as we currently don't
have any such devices, but better to add a warning for such
case, as, if anyone adds such device, the logic will need to
be reviewed.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Brad Love <brad@nextdimension.cc>
Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: em28xx: Remove duplicate PID

Half-revert: commit 5b1a270d224b ("media: dvb: add alternative USB PID for Hauppauge WinTV-soloHD")'

The PID already exists on the line above.

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Michael Ira Krufky <mkrufky@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: em28xx: Fix DualHD disconnect oops

During the duplication of em28xx state for the second tuner pair
a pointer to alt_max_pkt_size_isoc is copied. During tear down
the second tuner is destroyed first and kfrees alt_max_pkt_size_isoc,
then the first tuner is destroyed and kfrees it again. The property
should only be kfree'd if the tuner is PRIMARY_TS.

[  354.888560] ------------[ cut here ]------------
[  354.888562] kernel BUG at mm/slub.c:296!
[  354.888574] invalid opcode: 0000 [#1] SMP NOPTI
[  354.888869] CPU: 1 PID: 19 Comm: kworker/1:0 Not tainted 4.18.0-rc1+ #20
[  354.889140] Hardware name: MSI MS-7A39/B350M GAMING PRO (MS-7A39), BIOS 2.G0 04/27/2018
[  354.889408] Workqueue: usb_hub_wq hub_event
[  354.889679] RIP: 0010:__slab_free+0x217/0x370
[  354.889942] Code: bb c0 e8 07 41 38 c7 72 39 48 83 c4 70 5b 41 5a 41 5c 41 5d 41 5e 41 5f 5d 49 8d 62 f8 c3 f3 90 49 8b 04 24 a8 01 75 f6 eb 82 <0f> 0b 44 89 45 80 48 89 4d 88 e8 aa fa ff ff 85 c0 74 cc e9 b7 fe
[  354.890598] RSP: 0018:ffffb84c41a4fad0 EFLAGS: 00010246
[  354.890934] RAX: ffff948646e85150 RBX: ffff948646e85150 RCX: ffff948646e85150
[  354.891280] RDX: 00000000820001d9 RSI: fffffa8fd01ba140 RDI: ffff94865e807c00
[  354.891649] RBP: ffffb84c41a4fb70 R08: 0000000000000001 R09: ffffffffc059ce21
[  354.892025] R10: ffff948646e85150 R11: 0000000000000001 R12: fffffa8fd01ba140
[  354.892403] R13: ffff948646e85150 R14: ffff94865e807c00 R15: ffff94864c92e0a0
[  354.892780] FS:  0000000000000000(0000) GS:ffff94865ec40000(0000) knlGS:0000000000000000
[  354.893150] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  354.893530] CR2: 00007f4e476da950 CR3: 000000040112c000 CR4: 00000000003406e0
[  354.893917] Call Trace:
[  354.894315]  ? __dev_printk+0x3c/0x80
[  354.894695]  ? _dev_info+0x64/0x80
[  354.895082]  ? em28xx_free_device+0x41/0x50 [em28xx]
[  354.895464]  kfree+0x17a/0x190
[  354.895852]  ? kfree+0x17a/0x190
[  354.896310]  em28xx_free_device+0x41/0x50 [em28xx]
[  354.896698]  em28xx_usb_disconnect+0xfa/0x110 [em28xx]
[  354.897083]  usb_unbind_interface+0x7a/0x270
[  354.897475]  device_release_driver_internal+0x17c/0x250
[  354.897864]  device_release_driver+0x12/0x20
[  354.898252]  bus_remove_device+0xec/0x160
[  354.898639]  device_del+0x13d/0x320
[  354.899018]  ? usb_remove_ep_devs+0x1f/0x30
[  354.899392]  usb_disable_device+0x9e/0x270
[  354.899772]  usb_disconnect+0x92/0x2a0
[  354.900149]  hub_event+0x98e/0x1650
[  354.900519]  ? sched_clock_cpu+0x11/0xa0
[  354.900890]  process_one_work+0x167/0x3f0
[  354.901251]  worker_thread+0x4d/0x460
[  354.901610]  kthread+0x105/0x140
[  354.901964]  ? rescuer_thread+0x360/0x360
[  354.902318]  ? kthread_associate_blkcg+0xa0/0xa0
[  354.902672]  ret_from_fork+0x22/0x40
[  354.903024] Modules linked in: rc_hauppauge em28xx_rc rc_core si2157 lgdt3306a i2c_mux em28xx_dvb dvb_core videobuf2_vmalloc videobuf2_memops videobuf2_common snd_hda_codec_hdmi nls_iso8859_1 edac_mce_amd kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel pcbc snd_hda_intel snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_seq_midi aesni_intel snd_seq_midi_event aes_x86_64 snd_rawmidi crypto_simd em28xx cryptd glue_helper asix tveeprom usbnet snd_seq v4l2_common mii videodev snd_seq_device media input_leds snd_timer joydev ccp k10temp wmi_bmof snd soundcore mac_hid sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables vfio_pci vfio_virqfd irqbypass vfio_iommu_type1 vfio nouveau mxm_wmi video i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops i2c_piix4 drm ahci libahci
[  354.905129]  wmi gpio_amdpt gpio_generic hid_generic usbhid hid
[  354.908140] ---[ end trace c230d02716298c34 ]---
[  354.908145] RIP: 0010:__slab_free+0x217/0x370
[  354.908147] Code: bb c0 e8 07 41 38 c7 72 39 48 83 c4 70 5b 41 5a 41 5c 41 5d 41 5e 41 5f 5d 49 8d 62 f8 c3 f3 90 49 8b 04 24 a8 01 75 f6 eb 82 <0f> 0b 44 89 45 80 48 89 4d 88 e8 aa fa ff ff 85 c0 74 cc e9 b7 fe
[  354.908183] RSP: 0018:ffffb84c41a4fad0 EFLAGS: 00010246
[  354.908186] RAX: ffff948646e85150 RBX: ffff948646e85150 RCX: ffff948646e85150
[  354.908189] RDX: 00000000820001d9 RSI: fffffa8fd01ba140 RDI: ffff94865e807c00
[  354.908191] RBP: ffffb84c41a4fb70 R08: 0000000000000001 R09: ffffffffc059ce21
[  354.908193] R10: ffff948646e85150 R11: 0000000000000001 R12: fffffa8fd01ba140
[  354.908195] R13: ffff948646e85150 R14: ffff94865e807c00 R15: ffff94864c92e0a0
[  354.908198] FS:  0000000000000000(0000) GS:ffff94865ec40000(0000) knlGS:0000000000000000
[  354.908201] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  354.908203] CR2: 00007f4e476da950 CR3: 000000016b20a000 CR4: 00000000003406e0

Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Michael Ira Krufky <mkrufky@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: em28xx: Fix dual transport stream operation

Addresses the following, which introduced a regression itself:

Commit 509f89652f83 ("media: em28xx: fix a regression with HVR-950")

The regression fix breaks dual transport stream support. Currently,
when a tuner starts streaming it sets alt mode on the USB interface.
The problem is, in a dual tuner model, both tuners share the same
USB interface, so when the second tuner becomes active and sets alt
mode on the interface it kills streaming on the other port.

This patch addresses the regression by only setting alt mode
on the USB interface during em28xx_start_streaming, if the
device is not a dual tuner model. This allows all older and
single tuner devices to explicitly set alt mode during stream
startup. Testers report both isoc and bulk DualHD models work
correctly with the alt mode set only once, in em28xx_dvb_init.

Fixes: 509f89652f83 ("media: em28xx: fix a regression with HVR-950")
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Michael Ira Krufky <mkrufky@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: vicodec: current -> cur

'current' is also defined in asm-generic/current.h.

When compiling this driver for older kernels with the media_build system,
this header is included via compat.h and it no longer compiles. Rename
current to cur.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: dib0700: add code comment

Add FIXME code comment:
/* FIXME: check if it is fe_adap[1] */

It is likely that it should be adap->fe_adap[1].fe in the second clause,
but this has never been verified.

Suggested-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: dvb-bt8xx: remove duplicate code

The same code is executed regardless of whether c->frequency < 600000000
or c->frequency < 730000000 is true.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: cx231xx: don't check number of messages in the driver

Since commit 1eace8344c02 ("i2c: add param sanity check to
i2c_transfer()"), the I2C core does this check now. We can remove it
from drivers.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: si4713: don't check number of messages in the driver

Since commit 1eace8344c02 ("i2c: add param sanity check to
i2c_transfer()"), the I2C core does this check now. We can remove it
from drivers.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: em28xx: don't check number of messages in the driver

Since commit 1eace8344c02 ("i2c: add param sanity check to
i2c_transfer()"), the I2C core does this check now. We can remove it
from drivers.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: hdpvr: don't check number of messages in the driver

Since commit 1eace8344c02 ("i2c: add param sanity check to
i2c_transfer()"), the I2C core does this check now. We can remove it
from drivers.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: dvb-usb: don't check number of messages in the driver

Since commit 1eace8344c02 ("i2c: add param sanity check to
i2c_transfer()"), the I2C core does this check now. We can remove it
from drivers.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: tm6000: don't check number of messages in the driver

Since commit 1eace8344c02 ("i2c: add param sanity check to
i2c_transfer()"), the I2C core does this check now. We can remove it
from drivers.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: netup_unidvb: don't check number of messages in the driver

Since commit 1eace8344c02 ("i2c: add param sanity check to
i2c_transfer()"), the I2C core does this check now. We can remove it
from drivers.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: gl861: fix probe of dvb_usb_gl861

Probe of dvb_usb_gl861 was working at least with v4.4. Noticed the issue
with v4.13 but according to similar issues the problem started with v4.9.

[   15.288065] transfer buffer not dma capable
[   15.288090] WARNING: CPU: 2 PID: 493 at drivers/usb/core/hcd.c:1595 usb_hcd_map_urb_for_dma+0x4e2/0x640
...CUT...
[   15.288791] dvb_usb_gl861: probe of 3-7:1.0 failed with error -5

Tested with MSI Mega Sky 580 DVB-T Tuner [GL861]

[mchehab+samsung@kernel.org: rebased on the top of upstream]
Cc: stable@vger.kernel.org
Signed-off-by: Mika Båtsman <mika.batsman@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media-types.rst: codec entities can have more than one source pad

Some decoders and encoders can potentially have more than one source pad,
so update the description to say 'at least one source pad'.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: add HEVC codec support

This add HEVC codec support for venus versions 3xx and 4xx.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: core: add sdm845 DT compatible and resource data

This adds sdm845 DT compatible string with it's resource
data table.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: implementing multi-stream support

This is implementing multi-stream decoder support. The multi-stream
will be used to enable/disable the primary/secondary decoder
outputs. Depending on formats on both decoder outputs we could
implement downscale, dithering and supporting UBWC (universal
bandwidth compression) formats. The UBWC compressed raw format is
used to optimize interconnect bandwidth for bigger resolutions
like 4K and hence we will get some power-saving benefits as well.

Both decoder outputs are distinguished by buffer_type field in
the HFI packets. For example HFI_BUFFER_OUTPUT is the buffer type
for primary decoder output and HFI_BUFFER_OUTPUT2 is for secondary
decoder output.

Starting from Venus 4xx the DPB buffers format must be UBWC, so
the multi-stream becomes mandatory for this Venus version. That
means that we need to allocate internally in the driver a set of
DPB buffers (with UBWC NV12 format) and give them to the firmware.
The other decoder output (we called it OPB) format will be NV12
linear format and with the same resolution (or smaller in case
the user wants to downscale).

The DPB buffers are used for decoder reference frames and those
have to be in a specific format (UBWC). So one decoder output is
used to fill those reference buffers while the other output is
used to fill the userspace buffers with the user requested format.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: helpers: move frame size calculations on common place

This move the calculations of raw and compressed buffer sizes
on common helper and make it identical for encoder and decoder.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: vdec: a new function for output configuration

Make a new function vdec_output_conf() for decoder output
configuration. vdec_output_conf() will set properties via
HFI interface related to the output configuration, and
keep vdec_set_properties() which will set properties
related to decoding parameters.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: vdec: get required input buffers as well

Rework and rename vdec_cap_num_buffers() to get the number of
input buffers too.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: helpers: add a helper to return opb buffer sizes

Add a helper function to return current output picture buffer size.
OPB sizes can vary depending on the selected decoder output(s).

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: helpers: extend set_num_bufs helper with one more argument

Extend venus_helper_set_num_bufs() helper function with one more
argument to set number of output buffers for the secondary decoder
output.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: helpers, vdec, venc: add helpers to set work mode and core usage

These are new properties applicable to Venus version 4xx. Add the
helpers and call them from decoder and encoder drivers.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: helpers: add a new helper to set raw format

The new helper will has one more argument for buffer type, that
way the decoder can configure the format on it's secondary
output.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: helpers: add buffer type argument to a helper

This adds one more function argument to pass buffer type to
set_output_resolution() helper function. That is a preparation
to support secondary decoder output.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: core: delete not used buffer mode flags

Delete not used flag for capture buffer allocation mode and
no longer used cap_bufs_mode_dynamic from instance structure.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: helpers: add helper function to set actual buffer size

Add and use a helper function to set actual buffer size for
particular buffer type. This is also preparation to use
the second decoder output.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: helpers: add a helper function to set dynamic buffer mode

Adds a new helper function to set dynamic buffer mode if it is
supported by current HFI version. The dynamic buffer mode is
set unconditionally for both decoder outputs.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: helpers: rename a helper function and use buffer mode from caps

Rename is_reg_unreg_needed() to better name is_dynamic_bufmode() and
use buffer mode from enumerated per codec capabilities.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi_parser: add common capability parser

This adds common capability parser for all supported Venus
versions. Having it will help to enumerate better the supported
raw formats and codecs and also the capabilities for every
codec like max/min width/height, framerate, bitrate and so on.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: core, helpers: add two more clocks found in Venus 4xx

Add two more clocks for Venus 4xx in core structure and create
a new power enable function to handle it for 3xx/4xx versions.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi_venus: add suspend functionality for Venus 4xx

This adds suspend (power collapse) functionality by reusing
the suspend function for Venus 3xx and also enables idle indicator
property for Venus 4xx (where it is disabled by default).

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi_venus: move set of default properties to core init

This moves setting of default properties (firmware debug, idle
indicator and low power mode) from session init to core init.
All of those properties are need to be enabled/disabled early
so that they could be used before the clients are even initialized.

The other reason is to set idle indicator property early before
we enter into venus_suspend function where we need to check for
ARM9 WFI.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi_venus: fix suspend function for venus 3xx versions

This fixes the suspend function for Venus 3xx versions by
add a check for WFI (wait for interrupt) bit. This bit
is on when the ARM9 is idle and entered in low power mode.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi_venus: add halt AXI support for Venus 4xx

Add AXI halt support for version 4xx by using venus wrapper
registers.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi: handle buffer output2 type as well

This adds handling of buffers of type OUTPUT2 which is needed to
support Venus 4xx version.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi: support session continue for 4xx version

This makes possible to handle session_continue for 4xx as well.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi_cmds: add set_properties for 4xx version

Adds set_properties method to handle newer 4xx properties and
fall-back to 3xx for the rest.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi: update sequence event to handle more properties

HFI version 4xx can pass more properties in the sequence change
event, extend the event structure with them.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi: preparation to support venus 4xx

This covers the differences between 1xx,3xx and 4xx.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: venus: hfi_msgs: correct pointer increment

Data pointer should be incremented by size of the structure not
the size of a pointer, correct the mistake.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: v4l2-ctrls.h: fix v4l2_ctrl field description typos

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: MAINTAINERS: Add entry for STM32 DCMI media driver

Add an entry to make myself a maintainer of STM32 DCMI media driver.

Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: gspca_kinect: cast sizeof to int for comparison

Comparing an int to a size, which is unsigned, causes the int to become
unsigned, giving the wrong result.  kinect_read returns the result of
usb_control_msg, which can return a negtive error code.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
int x;
expression e,e1;
identifier f;
@@

*x = f(...);
... when != x = e1
    when != if (x < 0 || ...) { ... return ...; }
*x < sizeof(e)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: tw686x: Fix oops on buffer alloc failure

The error path currently calls tw686x_video_free() which requires
vc->dev to be initialized, causing a NULL dereference on uninitizalized
channels.

Fix this by setting the vc->dev fields for all the channels first.

Fixes: f8afaa8dbc0d ("[media] tw686x: Introduce an interface to support multiple DMA modes")

Signed-off-by: Krzysztof Ha?asa <khalasa@piap.pl>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: video-i2c: add hwmon support for amg88xx

AMG88xx has an on-board thermistor which is used for more accurate
processing of its temperature readings from the 8x8 thermopile array

Cc: linux-hwmon@vger.kernel.org
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: coda: add missing h.264 levels

This enables reordering support for h.264 main profile level 4.2,
5.0, and 5.1 streams. Even though we likely can't play back such
streams at full speed, we should still recognize them correctly.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: coda: use encoder crop rectangle to set visible width and height

Allow to set a crop rectangle on the encoder output queue to set the
visible resolution as required by the V4L2 codec API.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: coda: streamline framebuffer size calculation a bit

Remove the intermediate width and height variables, the calculation is
simple enough.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: coda: move framebuffer size calculation out of loop

All internal YCbCr frame buffers are the same size, calculate ycbcr_size
once before the allocation loop.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: vicodec: add the virtual codec driver

Add the virtual codec driver that uses the Fast Walsh Hadamard Transform.

Keiichi Watanabe contributed the multiplanar support.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Co-Developed-by: Keiichi Watanabe <keiichiw@chromium.org>
Signed-off-by: Keiichi Watanabe <keiichiw@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: vicodec: add the FWHT software codec

Add a software codec based on the Fast Walsh Hadamard Transform.

The original FWHT codec was developed by Tom aan de Wiel, and it was
turned into 'proper' kernel code by Hans Verkuil, with a lot of
performance and memory improvements.

Signed-off-by: Tom aan de Wiel <tom.aandewiel@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: v4l2-mem2mem: add v4l2_m2m_last_buf()

This can be used to mark the last queued source buffer as the last
buffer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: videodev.h: add PIX_FMT_FWHT for use with vicodec

Add a new pixelformat for the vicodec software codec using the
Fast Walsh Hadamard Transform.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media.h: add encoder/decoder functions for codecs

Add MEDIA_ENT_F_PROC_VIDEO_EN/DECODER to be used for the encoder
and decoder entities of codec hardware.

[mchehab+samsung@kernel.org: split description on two senteces by adding dots]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media-ioc-enum-entities.rst/-g-topology.rst: clarify ID/name usage

Mention that IDs should not be hardcoded in applications and that the
entity name must be unique within the media topology.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media-ioc-enum-links.rst: improve pad index description

Make it clearer that the index starts at 0.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media/i2c: add missing entity functions

Several drivers in media/i2c do not set the entity function.
Correct this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: adv7180/tvp514x/tvp7002: fix entity function

The entity function was ORed with the flags field instead of
assigned to the function field. Correct this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: ad9389b/adv7511: set proper media entity function

These two drivers both have function MEDIA_ENT_F_DV_ENCODER.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media.h: reorder video en/decoder functions

Keep the function defines in numerical order: 0x6000 comes after
0x2000, so move it back.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media.h: add MEDIA_ENT_F_DV_ENCODER

Add a new function for digital video encoders such as HDMI transmitters.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: rename MEDIA_ENT_F_DTV_DECODER to MEDIA_ENT_F_DV_DECODER

The use of 'DTV' is very confusing since it normally refers to Digital
TV e.g. DVB etc.

Instead use 'DV' (Digital Video), which nicely corresponds to the
DV Timings API used to configure such receivers and transmitters.

We keep an alias to avoid breaking userspace applications.

Since this alias is only available if __KERNEL__ is *not* defined
(i.e. it is only available for userspace, not kernelspace), any
drivers that use it also have to be converted to the new define.
These drivers are adv7604, adv7842 and tda1997x.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media-ioc-g-topology.rst: document new 'flags' field

Document the new struct media_v2_entity 'flags' field.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: add flags field to struct media_v2_entity

The v2 entity structure never exposed the entity flags, which made it
impossible to detect connector or default entities.

It is really trivial to just expose this information, so implement this.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: media-ioc-g-topology.rst: document new 'index' field

Document the new struct media_v2_pad 'index' field.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: add 'index' to struct media_v2_pad

The v2 pad structure never exposed the pad index, which made it impossible
to call the MEDIA_IOC_SETUP_LINK ioctl, which needs that information.

It is really trivial to just expose this information, so implement this.

Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: cec-gpio: support 5v testing

Add support for the new (optional) 5V gpio in order to debug 5V
changes. Some displays turn off CEC if the 5V is not detected,
so it is useful to be able to monitor this line.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: cec: add support for 5V signal testing

Add support for the new 5V CEC events

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: uapi/linux/cec.h: add 5V events

Add two new events to signal when the 5V line goes high or low.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: cec-ioc-dqevent.rst: document the new 5V events

Document the two new 5V events.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: cec-gpio.txt: add v5-gpios for testing the 5V line

In order to debug the HDMI 5V line we need to add a new v5-gpios
property.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: v4l: rcar_fdp1: Enable compilation on Gen2 platforms

Commit 1d3897143815 ("[media] v4l: rcar_fdp1: add FCP dependency") fixed
a compilation breakage when the optional VIDEO_RENESAS_FCP dependency is
compiled as a module while the rcar_fdp1 driver is built in. As a side
effect it disabled compilation on Gen2 by disallowing the valid
combination ARCH_RENESAS && !VIDEO_RENESAS_FCP. Fix it by handling the
dependency the same way the vsp1 driver did in commit 199946731fa4
("[media] vsp1: clarify FCP dependency").

Fixes: 1d3897143815 ("[media] v4l: rcar_fdp1: add FCP dependency")

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

media: platform: meson-ao-cec: make busy TX warning silent

Switch to dev_dbg for the busy TX message to avoid having a flood of:
[  228.064570] meson-ao-cec c8100100.cec: meson_ao_cec_transmit: busy TX: aborting
[  230.368489] meson-ao-cec c8100100.cec: meson_ao_cec_transmit: busy TX: aborting
[  234.208655] meson-ao-cec c8100100.cec: meson_ao_cec_transmit: busy TX: aborting
[  236.512558] meson-ao-cec c8100100.cec: meson_ao_cec_transmit: busy TX: aborting

This message is only a debug hint and not an error.

Fixes: 7ec2c0f72cb1 ("media: platform: Add Amlogic Meson AO CEC Controller driver")

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>