platform/kernel/linux-starfive.git
5 years agomedia: imx: queue subdev events to reachable video devices
Steve Longerbeam [Tue, 15 Jan 2019 19:15:46 +0000 (17:15 -0200)]
media: imx: queue subdev events to reachable video devices

In order to receive events generated by subdevices on the video capture
nodes, those events need to be forwarded to the subdevice's list of
reachable video capture devices.

Note this will queue the event to a video device even if there is
no actual _enabled_ media path from the sub-device to the video device.
So a future improvement is to skip the video device if there is no enabled
path to it from the sub-device. The entity->pipe pointer can't be
used for this check because in imx-media a sub-device can be a
member to more than one streaming pipeline at a time.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx: lift CSI and PRP ENC/VF width alignment restriction
Philipp Zabel [Thu, 17 Jan 2019 15:51:54 +0000 (13:51 -0200)]
media: imx: lift CSI and PRP ENC/VF width alignment restriction

The CSI, PRP ENC, and PRP VF subdevices shouldn't have to care about
IDMAC line start address alignment. With compose rectangle support in
the capture driver, they don't have to anymore.
If the direct CSI -> IC path is enabled, the CSI output width must
still be aligned to 8 pixels (IC burst length).

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx: set compose rectangle to mbus format
Philipp Zabel [Thu, 17 Jan 2019 15:51:53 +0000 (13:51 -0200)]
media: imx: set compose rectangle to mbus format

Prepare for mbus format being smaller than the written rectangle
due to burst size.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx: add capture compose rectangle
Philipp Zabel [Thu, 17 Jan 2019 15:51:52 +0000 (13:51 -0200)]
media: imx: add capture compose rectangle

Allowing to compose captured images into larger memory buffers
will let us lift alignment restrictions on CSI crop width.

For now all compose rectangles are identical to the complete
frame width / height. This will be changed in the next patches.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: coda: fix decoder capture buffer payload
Philipp Zabel [Tue, 8 Jan 2019 17:20:43 +0000 (15:20 -0200)]
media: coda: fix decoder capture buffer payload

It is not correct to calculate decoder capture payload dynamically from
the decoded frame width and height reported by the firmware. These tell
us what the decoder wrote into the internal framebuffers. The rotator or
VDOA always write the full sizeimage when copying the previously decoded
frame from the internal framebuffers into the capture queue.

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+samsung@kernel.org>
5 years agomedia: coda: use macroblock tiling on CODA960 only
Philipp Zabel [Tue, 8 Jan 2019 17:20:16 +0000 (15:20 -0200)]
media: coda: use macroblock tiling on CODA960 only

Coda7541 and earlier do not support macroblock tiling. They do support
the NV12 format, though.  Enable macroblock tiling for NV12 only on
CODA960. This fixes crashes when trying to use NV12 support on CodaHx4.

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+samsung@kernel.org>
5 years agomedia: media/v4l2-core/videobuf-vmalloc.c: Remove dead code
Souptick Joarder [Wed, 16 Jan 2019 18:49:33 +0000 (16:49 -0200)]
media: media/v4l2-core/videobuf-vmalloc.c: Remove dead code

This code is commented since version 3.7. If there is no plan to
use it in future, we can remove this dead code.

Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: vidioc-prepare-buf.rst: drop reference to NO_CACHE flags
Hans Verkuil [Wed, 16 Jan 2019 11:46:26 +0000 (09:46 -0200)]
media: vidioc-prepare-buf.rst: drop reference to NO_CACHE flags

This was never implemented, so do not document this.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: vimc: fill in correct driver name in querycap
Hans Verkuil [Mon, 14 Jan 2019 12:27:45 +0000 (10:27 -0200)]
media: vimc: fill in correct driver name in querycap

The driver name as returned in v4l2_capabilities must be vimc, not vimc_capture.

Fix this.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: adv748x: Use devm to allocate the device struct
Steve Longerbeam [Fri, 11 Jan 2019 16:17:03 +0000 (14:17 -0200)]
media: i2c: adv748x: Use devm to allocate the device struct

Switch to devm_kzalloc() when allocating the adv748x device struct.

The sizeof() is updated to determine the correct allocation size from
the dereferenced pointer type rather than hardcoding the struct type.

[Kieran: Change sizeof() to dereference the pointer type]

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: cedrus: Allow using the current dst buffer as reference
Paul Kocialkowski [Wed, 9 Jan 2019 14:19:20 +0000 (12:19 -0200)]
media: cedrus: Allow using the current dst buffer as reference

It was reported that some cases of interleaved video decoding require
using the current destination buffer as a reference. However, this is
no longer possible after the move to vb2_find_timestamp because only
dequeued and done buffers are considered.

Add a helper in our driver that also considers the current destination
buffer before resorting to vb2_find_timestamp and use it in MPEG-2.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: cedrus: Cleanup duplicate declarations from cedrus_dec header
Paul Kocialkowski [Wed, 9 Jan 2019 14:19:19 +0000 (12:19 -0200)]
media: cedrus: Cleanup duplicate declarations from cedrus_dec header

Some leftover declarations are still in the cedrus_dec header although
they were moved to cedrus_video already. Clean them up.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: rcar-vin: fix wrong return value in rvin_set_channel_routing()
Niklas Söderlund [Fri, 14 Dec 2018 06:18:21 +0000 (04:18 -0200)]
media: rcar-vin: fix wrong return value in rvin_set_channel_routing()

If the operation in rvin_set_channel_routing() is successful the 'ret'
variable contains the runtime PM use count for the VIN master device.
The intention is not to return the use count to the caller but to return
0 on success else none zero.

Fix this by always returning 0 if the operation is successful.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: platform: sti: remove bdisp_dbg_declare() and hva_dbg_declare()
Yangtao Li [Wed, 12 Dec 2018 16:27:03 +0000 (14:27 -0200)]
media: platform: sti: remove bdisp_dbg_declare() and hva_dbg_declare()

We already have the DEFINE_SHOW_ATTRIBUTE. There is no need to define
bdisp_dbg_declare and hva_dbg_declare, so remove them. Also use
DEFINE_SHOW_ATTRIBUTE to simplify some code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: exynos4-is: convert to DEFINE_SHOW_ATTRIBUTE
Yangtao Li [Wed, 12 Dec 2018 16:20:14 +0000 (14:20 -0200)]
media: exynos4-is: convert to DEFINE_SHOW_ATTRIBUTE

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: video-i2c: add Melexis MLX90640 thermal camera
Matt Ranostay [Tue, 11 Dec 2018 15:17:01 +0000 (13:17 -0200)]
media: video-i2c: add Melexis MLX90640 thermal camera

Add initial support for MLX90640 thermal cameras which output an 32x24
greyscale pixel image along with 2 rows of coefficent data.

Because of this the data outputed is really 32x26 and needs the two rows
removed after using the coefficent information to generate processed
images in userspace.

Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dt-bindings: media: video-i2c: add melexis mlx90640 documentation
Matt Ranostay [Tue, 11 Dec 2018 15:17:00 +0000 (13:17 -0200)]
media: dt-bindings: media: video-i2c: add melexis mlx90640 documentation

Cc: devicetree@vger.kernel.org
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dt-bindings: Add binding for si470x radio
Pawe? Chmiel [Fri, 7 Dec 2018 13:58:12 +0000 (11:58 -0200)]
media: dt-bindings: Add binding for si470x radio

Add device tree bindings for si470x family radio receiver driver.

Signed-off-by: Pawe? Chmiel <pawel.mikolaj.chmiel@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: si470x-i2c: Add optional reset-gpio support
Pawe? Chmiel [Fri, 7 Dec 2018 13:58:11 +0000 (11:58 -0200)]
media: si470x-i2c: Add optional reset-gpio support

If reset-gpio is defined, use it to bring device out of reset.
Without this, it's not possible to access si470x registers.

Signed-off-by: Pawe? Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: si470x-i2c: Use managed resource helpers
Pawe? Chmiel [Fri, 7 Dec 2018 13:58:10 +0000 (11:58 -0200)]
media: si470x-i2c: Use managed resource helpers

Simplify cleanup of failures by using managed resource helpers

Signed-off-by: Pawe? Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: si470x-i2c: Add device tree support
Pawe? Chmiel [Fri, 7 Dec 2018 13:58:09 +0000 (11:58 -0200)]
media: si470x-i2c: Add device tree support

This commit enables device tree support adding simple of_match table.

Signed-off-by: Pawe? Chmiel <pawel.mikolaj.chmiel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: ivtv: add parameter to enable ivtvfb on x86 PAT systems
French, Nicholas A [Sun, 11 Mar 2018 19:27:28 +0000 (16:27 -0300)]
media: ivtv: add parameter to enable ivtvfb on x86 PAT systems

ivtvfb was previously disabled for x86 PAT-enabled systems
by commit 1bf1735b4780 ("x86/mm/pat, drivers/media/ivtv:
Use arch_phys_wc_add() and require PAT disabled") as a
workaround to abstract MTRR code away from device drivers.

The driver is not easily upgradable to the PAT-aware
ioremap_wc() API since the firmware hides the address
ranges that should be marked write-combined from the driver.
However, since a write-combined cache on the framebuffer
is only a performance enhancement not a requirement for
the framebuffer to function, completely disabling the driver
in this configuration is not necessary.

Add force_pat module parameter and a corresponding kernel
configuration parameter to optionally force initialization
on PAT-enabled x86 systems with a warning about the lack of
write-combined caching, and document the reasons the driver
cannot be easily updated to support wc caching on all systems.

Signed-off-by: Nick French <naf@ou.edu>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil-cisco@xs4all.nl: fix typo, split long pr_ lines up]
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: soc_camera_platform: remove obsolete soc_camera test driver
Hans Verkuil [Thu, 17 Jan 2019 13:47:55 +0000 (11:47 -0200)]
media: soc_camera_platform: remove obsolete soc_camera test driver

This is a test stub driver for soc_camera. Since soc_camera is
being deprecated (and in fact, nobody is using it anymore)
there's no sense in keeping this test driver.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: soc_camera/soc_scale_crop: drop this unused code
Hans Verkuil [Thu, 17 Jan 2019 13:44:21 +0000 (11:44 -0200)]
media: soc_camera/soc_scale_crop: drop this unused code

With the removal of sh_mobile_ceu_camera.c this code is no
longer used and can be removed.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: sh_mobile_ceu_camera: remove obsolete soc_camera driver
Hans Verkuil [Thu, 17 Jan 2019 13:41:23 +0000 (11:41 -0200)]
media: sh_mobile_ceu_camera: remove obsolete soc_camera driver

This driver got converted to not depend on soc_camera in commit
32e5a70dc8f4 ("media: platform: Add Renesas CEU driver").

There's no sense in keeping the old version there.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: soc_tw9910: remove obsolete sensor driver
Hans Verkuil [Thu, 17 Jan 2019 13:37:44 +0000 (11:37 -0200)]
media: soc_tw9910: remove obsolete sensor driver

This driver got converted to not depend on soc_camera in commit
7b20f325a566 ("media: i2c: tw9910: Remove soc_camera dependencies").

There's no sense in keeping the old version there.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: tw9910.h: remove obsolete soc_camera.h include.
Hans Verkuil [Thu, 17 Jan 2019 13:33:42 +0000 (11:33 -0200)]
media: tw9910.h: remove obsolete soc_camera.h include.

This include isn't use anymore, so drop it.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: soc_ov772x: remove obsolete sensor driver
Hans Verkuil [Thu, 17 Jan 2019 13:30:16 +0000 (11:30 -0200)]
media: soc_ov772x: remove obsolete sensor driver

This driver got converted to not depend on soc_camera in commit
762c28121d7c ("media: i2c: ov772x: Remove soc_camera dependencies").

There's no sense in keeping the old version there.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: soc_mt9t112: remove obsolete sensor driver
Hans Verkuil [Thu, 17 Jan 2019 13:27:00 +0000 (11:27 -0200)]
media: soc_mt9t112: remove obsolete sensor driver

This driver got converted to not depend on soc_camera in commit
6a26f141bf62 ("media: i2c: mt9t112: Remove soc_camera dependencies").

There's no sense in keeping the old version there.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: tw9910: Unregister subdevice with v4l2-async
Jacopo Mondi [Thu, 17 Jan 2019 14:33:04 +0000 (12:33 -0200)]
media: tw9910: Unregister subdevice with v4l2-async

As the tw9910 subdevice is registered through the v4l2-async framework,
use the v4l2-async provided function to register it.

Fixes: 7b20f325a566 ("media: i2c: tw9910: Remove soc_camera dependencies")

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: remove soc_camera ov9640
Mauro Carvalho Chehab [Thu, 17 Jan 2019 12:53:55 +0000 (07:53 -0500)]
media: remove soc_camera ov9640

This driver got converted to not depend on soc_camera on commit
57b0ad9ebe60 ("media: soc_camera: ov9640: move ov9640 out of soc_camera").

There's no sense on keeping the old version there.

Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx.rst: Update doc to reflect fixes to interlaced capture
Steve Longerbeam [Wed, 9 Jan 2019 18:30:14 +0000 (13:30 -0500)]
media: imx.rst: Update doc to reflect fixes to interlaced capture

Also add an example pipeline for unconverted capture with interweave
on SabreAuto.

Cleanup some language in various places in the process.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx: Allow interweave with top/bottom lines swapped
Steve Longerbeam [Wed, 9 Jan 2019 18:30:13 +0000 (13:30 -0500)]
media: imx: Allow interweave with top/bottom lines swapped

Allow sequential->interlaced interweaving but with top/bottom
lines swapped to the output buffer.

This can be accomplished by adding one line length to IDMAC output
channel address, with a negative line length for the interlace offset.

This is to allow the seq-bt -> interlaced-bt transformation, where
bottom lines are still dominant (older in time) but with top lines
first in the interweaved output buffer.

With this support, the CSI can now allow seq-bt at its source pads,
e.g. the following transformations are allowed in CSI from sink to
source:

seq-tb -> seq-bt
seq-bt -> seq-bt
alternate -> seq-bt

Suggested-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx-csi: Move crop/compose reset after filling default mbus fields
Steve Longerbeam [Wed, 9 Jan 2019 18:30:12 +0000 (13:30 -0500)]
media: imx-csi: Move crop/compose reset after filling default mbus fields

If caller passes un-initialized field type V4L2_FIELD_ANY to CSI
sink pad, the reset CSI crop window would not be correct, because
the crop window depends on a valid input field type. To fix move
the reset of crop and compose windows to after the call to
imx_media_fill_default_mbus_fields().

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx: vdic: rely on VDIC for correct field order
Steve Longerbeam [Wed, 9 Jan 2019 18:30:11 +0000 (13:30 -0500)]
media: imx: vdic: rely on VDIC for correct field order

prepare_vdi_in_buffers() was setting up the dma pointers as if the
VDIC is always programmed to receive the fields in bottom-top order,
i.e. as if ipu_vdi_set_field_order() only programs BT order in the VDIC.
But that's not true, ipu_vdi_set_field_order() is working correctly.

So fix prepare_vdi_in_buffers() to give the VDIC the fields in whatever
order they were received by the video source, and rely on the VDIC to
sort out which is top and which is bottom.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx-csi: Allow skipping odd chroma rows for YVU420
Steve Longerbeam [Wed, 9 Jan 2019 18:30:10 +0000 (13:30 -0500)]
media: imx-csi: Allow skipping odd chroma rows for YVU420

Skip writing U/V components to odd rows for YVU420 in addition to
YUV420 and NV12.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx: interweave and odd-chroma-row skip are incompatible
Steve Longerbeam [Wed, 9 Jan 2019 18:30:09 +0000 (13:30 -0500)]
media: imx: interweave and odd-chroma-row skip are incompatible

If IDMAC interweaving is enabled in a write channel, the channel must
write the odd chroma rows for 4:2:0 formats. Skipping writing the odd
chroma rows produces corrupted captured 4:2:0 images when interweave
is enabled.

Reported-by: Krzysztof Ha?asa <khalasa@piap.pl>
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx-csi: Double crop height for alternate fields at sink
Steve Longerbeam [Wed, 9 Jan 2019 18:30:08 +0000 (13:30 -0500)]
media: imx-csi: Double crop height for alternate fields at sink

If the incoming sink field type is alternate, the reset crop height
and crop height bounds must be set to twice the incoming height,
because in alternate field mode, upstream will report only the
lines for a single field, and the CSI captures the whole frame.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx: Fix field negotiation
Steve Longerbeam [Wed, 9 Jan 2019 18:30:07 +0000 (13:30 -0500)]
media: imx: Fix field negotiation

IDMAC interlaced scan, a.k.a. interweave, should be enabled in the
IDMAC output channels only if the IDMAC output pad field type is
'seq-bt' or 'seq-tb', and field type at the capture interface is
'interlaced*'.

V4L2_FIELD_HAS_BOTH() macro should not be used on the input to determine
enabling interlaced/interweave scan. That macro includes the 'interlaced'
field types, and in those cases the data is already interweaved with
top/bottom field lines.

The CSI will capture whole frames when the source specifies alternate
field mode. So the CSI also enables interweave for alternate input
field type and the field type at capture interface is interlaced.

Fix the logic for setting field type in try_fmt in CSI entity.
The behavior should be:

- No restrictions on field type at sink pad.

- At the output pads, allow sequential fields in TB order, if the sink pad
  field type is sequential or alternate. Otherwise passthrough the field
  type from sink to source pad.

Move this logic to new function csi_try_field().

These changes result in the following allowed field transformations
from CSI sink -> source pads (all other field types at sink are passed
through to source):

seq-tb -> seq-tb
seq-bt -> seq-tb
alternate -> seq-tb

In a future patch, the CSI sink -> source will allow:

seq-tb -> seq-bt
seq-bt -> seq-bt
alternate -> seq-bt

This will require supporting interweave with top/bottom line swapping.
Until then seq-bt is not allowed at the CSI source pad because there is
no way to swap top/bottom lines when interweaving to INTERLACED_BT --
note that despite the name, INTERLACED_BT is top-bottom order in memory.
The BT in this case refers to field dominance: the bottom lines are
older in time than the top lines.

The capture interface device allows selecting IDMAC interweave by
choosing INTERLACED_TB if the CSI/PRPENCVF source pad is seq-tb and
INTERLACED_BT if the source pad is seq-bt (for future support of seq-bt).

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: gpu: ipu-v3: Add planar support to interlaced scan
Steve Longerbeam [Wed, 9 Jan 2019 18:30:06 +0000 (13:30 -0500)]
media: gpu: ipu-v3: Add planar support to interlaced scan

To support interlaced scan with planar formats, cpmem SLUV must
be programmed with the correct chroma line stride. For full and
partial planar 4:2:2 (YUV422P, NV16), chroma line stride must
be doubled. For full and partial planar 4:2:0 (YUV420, YVU420, NV12),
chroma line stride must _not_ be doubled, since a single chroma line
is shared by two luma lines.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: gpu: ipu-csi: Swap fields according to input/output field types
Steve Longerbeam [Wed, 9 Jan 2019 18:30:05 +0000 (13:30 -0500)]
media: gpu: ipu-csi: Swap fields according to input/output field types

The function ipu_csi_init_interface() was inverting the F-bit for
NTSC case, in the CCIR_CODE_1/2 registers. The result being that
for NTSC bottom-top field order, the CSI would swap fields and
capture in top-bottom order.

Instead, base field swap on the field order of the input to the CSI,
and the field order of the requested output. If the input/output
fields are sequential but different, swap fields, otherwise do
not swap. This requires passing both the input and output mbus
frame formats to ipu_csi_init_interface().

Move this code to a new private function ipu_csi_set_bt_interlaced_codes()
that programs the CCIR_CODE_1/2 registers for interlaced BT.656 (and
possibly interlaced BT.1120 in the future).

When detecting input video standard from the input frame width/height,
make sure to double height if input field type is alternate, since
in that case input height only includes lines for one field.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: videodev2.h: Add more field helper macros
Steve Longerbeam [Wed, 9 Jan 2019 18:30:04 +0000 (13:30 -0500)]
media: videodev2.h: Add more field helper macros

Adds two helper macros:

V4L2_FIELD_IS_SEQUENTIAL: returns true if the given field type is
'sequential', that is a full frame is transmitted, or exists in
memory, as all top field lines followed by all bottom field lines,
or vice-versa.

V4L2_FIELD_IS_INTERLACED: returns true if the given field type is
'interlaced', that is a full frame is transmitted, or exists in
memory, as top field lines interlaced with bottom field lines.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: rcar-vin: Allow independent VIN link enablement
Steve Longerbeam [Tue, 15 Jan 2019 01:10:19 +0000 (20:10 -0500)]
media: rcar-vin: Allow independent VIN link enablement

There is a block of code in rvin_group_link_notify() that prevents
enabling a link to a VIN node if any entity in the media graph is
in use. This prevents enabling a VIN link even if there is an in-use
entity somewhere in the graph that is independent of the link's
pipeline.

For example, the code block will prevent enabling a link from
the first rcar-csi2 receiver to a VIN node even if there is an
enabled link somewhere far upstream on the second independent
rcar-csi2 receiver pipeline.

If this code block is meant to prevent modifying a link if any entity
in the graph is actively involved in streaming (because modifying
the CHSEL register fields can disrupt any/all running streams), then
the entities stream counts should be checked rather than the use counts.

(There is already such a check in __media_entity_setup_link() that verifies
the stream_count of the link's source and sink entities are both zero,
but that is insufficient, since there should be no running streams in
the entire graph).

Modify the code block to check the entity stream_count instead of the
use_count (and elaborate on the comment). VIN node links can now be
enabled even if there are other independent in-use entities that are
not streaming.

Fixes: c0cc5aef31 ("media: rcar-vin: add link notify for Gen3")

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: coda: Add control for h.264 chroma qp index offset
Philipp Zabel [Thu, 10 Jan 2019 16:56:12 +0000 (11:56 -0500)]
media: coda: Add control for h.264 chroma qp index offset

Allow to set a fixed quantization parameter offset between luma and
chroma in the h.264 encoder.

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+samsung@kernel.org>
5 years agomedia: coda: Add control for h.264 constrained intra prediction
Philipp Zabel [Thu, 10 Jan 2019 16:56:11 +0000 (11:56 -0500)]
media: coda: Add control for h.264 constrained intra prediction

Allow to enable constrained intra prediction in the h.264 encoder.

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+samsung@kernel.org>
5 years agomedia: v4l2-ctrl: Add control for h.264 chroma qp offset
Philipp Zabel [Thu, 10 Jan 2019 16:56:10 +0000 (11:56 -0500)]
media: v4l2-ctrl: Add control for h.264 chroma qp offset

Allow to add fixed quantization parameter offset between luma and
chroma quantization parameters. This control directly corresponds
to the chroma_qp_index_offset field of the h.264 picture parameter
set.

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+samsung@kernel.org>
5 years agomedia: v4l2-ctrl: Add control to enable h.264 constrained intra prediction
Philipp Zabel [Thu, 10 Jan 2019 16:56:09 +0000 (11:56 -0500)]
media: v4l2-ctrl: Add control to enable h.264 constrained intra prediction

Allow to enable h.264 constrained intra prediction (macroblocks using
intra prediction modes are not allowed to use residual data and decoded
samples of neighboring macroblocks coded using inter prediction modes).
This control directly corresponds to the constrained_intra_pred_flag
field in the h.264 picture parameter set.

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+samsung@kernel.org>
5 years agomedia: gspca: ov534-ov772x: remove unnecessary COM3 initialization
Philipp Zabel [Fri, 14 Dec 2018 16:40:31 +0000 (11:40 -0500)]
media: gspca: ov534-ov772x: remove unnecessary COM3 initialization

The COM3 register at address 0x0c already defaults to 0x10, the two bits
COM3[7:6] are set according to V4L2 controls by sethvflip later.
There is no need to set it multiple times during bridge initialization.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: gspca: ov534-ov722x: remove camera clock setup from bridge_init
Philipp Zabel [Fri, 14 Dec 2018 16:40:30 +0000 (11:40 -0500)]
media: gspca: ov534-ov722x: remove camera clock setup from bridge_init

This register is later overwritten by set_frame_rate anyway.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: gspca: ov534-ov722x: remove mode specific video data registers from bridge_init
Philipp Zabel [Fri, 14 Dec 2018 16:40:29 +0000 (11:40 -0500)]
media: gspca: ov534-ov722x: remove mode specific video data registers from bridge_init

The video format, payload size, and frame size setup is video format
and frame size specific. Those registers are overwritten during
bridge_start anyway.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: gspca: ov534-ov772x: add SGBRG8 bayer mode support
Philipp Zabel [Fri, 14 Dec 2018 16:40:28 +0000 (11:40 -0500)]
media: gspca: ov534-ov772x: add SGBRG8 bayer mode support

Add support to pass through the sensor's native SGBRG8 bayer pattern,
allowing to cut the required USB bandwidth in half.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: gspca: ov543-ov772x: move video format specific registers into bridge_start
Philipp Zabel [Fri, 14 Dec 2018 16:40:27 +0000 (11:40 -0500)]
media: gspca: ov543-ov772x: move video format specific registers into bridge_start

In preparation for adding SGBRG8 as a second video format besides YUYV,
move video format specific register settings from the bridge_init array
into the bridge_start arrays.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: gspca: support multiple pixel formats in TRY_FMT
Philipp Zabel [Fri, 14 Dec 2018 16:40:26 +0000 (11:40 -0500)]
media: gspca: support multiple pixel formats in TRY_FMT

If a driver supports multiple pixel formats with the same frame size,
TRY_FMT will currently always return the first pixel format.
Fix this by adding pixelformat support to wxh_to_nearest_mode().

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: gspca: support multiple pixel formats in ENUM_FRAMEINTERVALS
Philipp Zabel [Fri, 14 Dec 2018 16:40:25 +0000 (11:40 -0500)]
media: gspca: support multiple pixel formats in ENUM_FRAMEINTERVALS

If a driver supports multiple pixel formats with the same frame size,
ENUM_FRAMEINTERVALS will currently only work for the first pixel format.
Fix this by adding pixelformat support to wxh_to_mode().

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: gspca: ov534: replace msleep(10) with usleep_range
Philipp Zabel [Fri, 14 Dec 2018 16:40:24 +0000 (11:40 -0500)]
media: gspca: ov534: replace msleep(10) with usleep_range

For short waits, usleep_range should be used instead of msleep,
see Documentation/timers/timers-howto.txt.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: vim2m: the v4l2_m2m_buf_copy_data args were swapped
Hans Verkuil [Fri, 11 Jan 2019 11:43:12 +0000 (06:43 -0500)]
media: vim2m: the v4l2_m2m_buf_copy_data args were swapped

The buffer arguments to v4l2_m2m_buf_copy_data args were swapped.

The reason is confusing naming conventions in vim2m. It certainly
could be improved.

Fixes: 7aca565ee3d0 ("media: vim2m: use v4l2_m2m_buf_copy_data")

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: vivid: do not implement VIDIOC_S_PARM for output streams
Hans Verkuil [Fri, 11 Jan 2019 11:37:03 +0000 (06:37 -0500)]
media: vivid: do not implement VIDIOC_S_PARM for output streams

v4l2_compliance gave a warning for the S_PARM test for output streams:

warn: v4l2-test-formats.cpp(1235): S_PARM is supported for buftype 2, but not for ENUM_FRAMEINTERVALS

The reason is that vivid mapped s_parm for output streams to g_parm. But if
S_PARM doesn't actually change anything, then it shouldn't be enabled at all.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: vivid: take data_offset into account for video output
Hans Verkuil [Mon, 14 Jan 2019 16:23:52 +0000 (11:23 -0500)]
media: vivid: take data_offset into account for video output

The video output sizeimage calculation did not take data_offset into account.

This can cause problems with video loopback or exporting output buffers for
use as dmabuf import buffers since the output buffer size is now too small.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: v4l: uAPI: V4L2_BUF_TYPE_META_OUTPUT is an output buffer type
Sakari Ailus [Mon, 14 Jan 2019 14:01:54 +0000 (09:01 -0500)]
media: v4l: uAPI: V4L2_BUF_TYPE_META_OUTPUT is an output buffer type

V4L2_BUF_TYPE_META_OUTPUT was added by commit 72148d1a57e7
("media: v4l: Add support for V4L2_BUF_TYPE_META_OUTPUT") but the patch
missed adding the type to the macro telling whether a given type is an
output type or not. Do that now. Getting this wrong leads to handling the
buffer as a capture buffer in a lot of places.

Fixes: 72148d1a57e7 ("media: v4l: Add support for V4L2_BUF_TYPE_META_OUTPUT")

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: vivid: disable VB2_USERPTR if dma_contig was configured
Hans Verkuil [Mon, 14 Jan 2019 13:50:54 +0000 (08:50 -0500)]
media: vivid: disable VB2_USERPTR if dma_contig was configured

It makes no sense to support the USERPTR memory model if the vivid instance was
configured as dma_contig. Disable it if this is the case.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: ipu3-cio2, dw9714: Remove Jian Xu's e-mail
Sakari Ailus [Mon, 7 Jan 2019 11:07:05 +0000 (06:07 -0500)]
media: ipu3-cio2, dw9714: Remove Jian Xu's e-mail

Jian Xu has left the company. Remove his e-mail address that no longer
works.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: MAINTAINERS: Update reviewers for ipu3-cio2
Sakari Ailus [Mon, 7 Jan 2019 11:06:18 +0000 (06:06 -0500)]
media: MAINTAINERS: Update reviewers for ipu3-cio2

Remove Jian Xu from the driver's reviewers.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: sun6i: Add H3 compatible
Chen-Yu Tsai [Fri, 30 Nov 2018 07:58:45 +0000 (02:58 -0500)]
media: sun6i: Add H3 compatible

The CSI controller found on the H3 (and H5) is a reduced version of the
one found on the A31. It only has 1 channel, instead of 4 channels for
time-multiplexed BT.656. Since the H3 is a reduced version, it cannot
"fallback" to a compatible that implements more features than it
supports.

Add a compatible string entry for the H3.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dt-bindings: media: sun6i: Separate H3 compatible from A31
Chen-Yu Tsai [Fri, 30 Nov 2018 07:58:44 +0000 (02:58 -0500)]
media: dt-bindings: media: sun6i: Separate H3 compatible from A31

The CSI controller found on the H3 (and H5) is a reduced version of the
one found on the A31. It only has 1 channel, instead of 4 channels for
time-multiplexed BT.656. Since the H3 is a reduced version, it cannot
"fallback" to a compatible that implements more features than it
supports.

Split out the H3 compatible as a separate entry, with no fallback.

Fixes: b7eadaa3a02a ("media: dt-bindings: media: sun6i: Add A31 and H3 compatibles")

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: ov9640: Wrap long and unwrap short lines, align wrapped lines correctly
Sakari Ailus [Thu, 13 Dec 2018 20:29:34 +0000 (15:29 -0500)]
media: ov9640: Wrap long and unwrap short lines, align wrapped lines correctly

Some little style fixup work.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: ov9640: fix missing error handling in probe
Petr Cvek [Thu, 13 Dec 2018 15:39:19 +0000 (10:39 -0500)]
media: i2c: ov9640: fix missing error handling in probe

Control handlers registration lacked error path with
v4l2_ctrl_handler_free() call. Fix it by using goto to alread existing
v4l2_ctrl_handler_free() call.

Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: ov9640: make array of supported formats constant
Petr Cvek [Thu, 13 Dec 2018 15:39:18 +0000 (10:39 -0500)]
media: i2c: ov9640: make array of supported formats constant

An array which defines sensor's supported formats is not written anywhere,
so it can be constant.

Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: ov9640: add space before return for better clarity
Petr Cvek [Thu, 13 Dec 2018 15:39:17 +0000 (10:39 -0500)]
media: i2c: ov9640: add space before return for better clarity

Some returns were adjoined to unrelated code blocks. This patch adds
a space inbetween.

Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: ov9640: change array index or length variables to unsigned
Petr Cvek [Thu, 13 Dec 2018 15:39:16 +0000 (10:39 -0500)]
media: i2c: ov9640: change array index or length variables to unsigned

The driver uses variables to store frame resolutions and to indexing
various arrays. These should be unsigned.

Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: ov9640: add missing SPDX identifiers
Petr Cvek [Thu, 13 Dec 2018 15:39:15 +0000 (10:39 -0500)]
media: i2c: ov9640: add missing SPDX identifiers

Add missing SPDX identifiers to .c and .h files of the sensor driver.

Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: MAINTAINERS: add Petr Cvek as a maintainer for the ov9640 driver
Petr Cvek [Thu, 13 Dec 2018 15:39:14 +0000 (10:39 -0500)]
media: MAINTAINERS: add Petr Cvek as a maintainer for the ov9640 driver

The soc_camera drivers are marked as orphaned. Add Petr Cvek as a new
maintainer for ov9640 driver after its switch from the soc_camera.

Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: ov9640: drop soc_camera code and switch to v4l2_async
Petr Cvek [Thu, 13 Dec 2018 15:39:13 +0000 (10:39 -0500)]
media: i2c: ov9640: drop soc_camera code and switch to v4l2_async

This patch removes the dependency on an obsoleted soc_camera from ov9640
driver and changes the code to be a standalone v4l2 async subdevice.
It also adds GPIO allocations for power and reset signals (as they are not
handled by soc_camera now).

The values for waiting on GPIOs (reset and power) settling down were taken
from the datasheet (> 1 ms after HW/SW reset). The upper limit was chosen
as an arbitrary value. Also one occurrence of mdelay() was changed to
msleep(). The delays were successfully tested on a real hardware.

The patch makes ov9640 sensor again compatible with the pxa_camera driver.

Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: soc_camera: ov9640: move ov9640 out of soc_camera
Petr Cvek [Thu, 13 Dec 2018 15:39:12 +0000 (10:39 -0500)]
media: soc_camera: ov9640: move ov9640 out of soc_camera

Initial part of ov9640 transition from soc_camera subsystem to a standalone
v4l2 subdevice. The soc_camera version seems to be used only in Palm Zire72
and in (the future) HTC Magician. On these two devices the support is
broken as pxa_camera driver doesn't use soc_camera anymore. The other
mentions from git grep are "TODOs" (in board-osk.c) or chip names for
unsupported sensors on HW which doesn't use soc_camera at all (irelevant).

Copy the driver files from soc_camera and mark the original ones in the
Kconfig description as obsoleted.

Add config option VIDEO_OV9640 to the build files in drivers/media/i2c.

Signed-off-by: Petr Cvek <petrcvekcz@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: v4l2: i2c: ov7670: Fix PLL bypass register values
Jacopo Mondi [Fri, 29 Dec 2017 12:22:26 +0000 (07:22 -0500)]
media: v4l2: i2c: ov7670: Fix PLL bypass register values

The following commits:
commit f6dd927f34d6 ("[media] media: ov7670: calculate framerate properly for ov7675")
commit 04ee6d92047e ("[media] media: ov7670: add possibility to bypass pll for ov7675")
introduced the ability to bypass PLL multiplier and use input clock (xvclk)
as pixel clock output frequency for ov7675 sensor.

PLL is bypassed using register DBLV[7:6], according to ov7670 and ov7675
sensor manuals. Macros used to set DBLV register seem wrong in the
driver, as their values do not match what reported in the datasheet.

Fix by changing DBLV_* macros to use bits [7:6] and set bits [3:0] to
default 0x0a reserved value (according to datasheets).

While at there, remove a write to DBLV register in
"ov7675_set_framerate()" that over-writes the previous one to the same
register that takes "info->pll_bypass" flag into account instead of setting PLL
multiplier to 4x unconditionally.

And, while at there, since "info->pll_bypass" is only used in
set/get_framerate() functions used by ov7675 only, it is not necessary
to check for the device id at probe time to make sure that when using
ov7670 "info->pll_bypass" is set to false.

Fixes: f6dd927f34d6 ("[media] media: ov7670: calculate framerate properly for ov7675")

Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: ov5640: Add RAW bayer format support
Loic Poulain [Fri, 2 Nov 2018 16:38:43 +0000 (12:38 -0400)]
media: ov5640: Add RAW bayer format support

OV5640 sensor supports raw image output (bayer).
Configure ISP mux/format registers accordingly.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dt-bindings: media: i2c: Fix i2c address for OV5645 camera sensor
Manivannan Sadhasivam [Fri, 9 Nov 2018 07:56:43 +0000 (02:56 -0500)]
media: dt-bindings: media: i2c: Fix i2c address for OV5645 camera sensor

The i2c address for the Omnivision OV5645 camera sensor is 0x3c. It is
incorrectly mentioned as 0x78 in binding. Hence fix that.

Fixes: 09c716af36e6 [media] media: i2c/ov5645: add the device tree binding document

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dt-bindings: media: i2c: Fix external clock frequency for OV5645
Manivannan Sadhasivam [Wed, 14 Nov 2018 12:13:38 +0000 (07:13 -0500)]
media: dt-bindings: media: i2c: Fix external clock frequency for OV5645

Commit "4adb0a0432f4 media: ov5645: Supported external clock is 24MHz"
modified the external clock frequency to be 24MHz instead of the
23.88MHz in driver. Hence, modify the frequency value in binding.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: ov2640: set all mbus format field when G_FMT and S_FMT ioctls
Akinobu Mita [Sun, 9 Dec 2018 05:20:33 +0000 (00:20 -0500)]
media: ov2640: set all mbus format field when G_FMT and S_FMT ioctls

This driver doesn't set all members of mbus format field when the
VIDIOC_SUBDEV_{S,G}_FMT ioctls are called.

This is detected by v4l2-compliance.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: ov2640: make VIDIOC_SUBDEV_G_FMT ioctl work with V4L2_SUBDEV_FORMAT_TRY
Akinobu Mita [Sun, 9 Dec 2018 05:20:32 +0000 (00:20 -0500)]
media: ov2640: make VIDIOC_SUBDEV_G_FMT ioctl work with V4L2_SUBDEV_FORMAT_TRY

The VIDIOC_SUBDEV_G_FMT ioctl for this driver doesn't recognize
V4L2_SUBDEV_FORMAT_TRY and always works as if V4L2_SUBDEV_FORMAT_ACTIVE
is specified.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: ov2640: set default window and format code at probe time
Akinobu Mita [Sun, 9 Dec 2018 05:20:31 +0000 (00:20 -0500)]
media: ov2640: set default window and format code at probe time

Set default window and format code at probe time instead of always checking
if they have not been set yet when VIDIOC_SUBDEV_G_FMT ioctl is called.

This change simplifies the next patch (make VIDIOC_SUBDEV_G_FMT ioctl work
with V4L2_SUBDEV_FORMAT_TRY).

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: imx274: fix wrong order in test pattern menus
Luca Ceresoli [Wed, 5 Dec 2018 16:32:21 +0000 (11:32 -0500)]
media: imx274: fix wrong order in test pattern menus

The description of test patterns 11 and 12 are swapped.

Checked against the live sensor.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: ipu3-cio2: Allow probe to succeed if there are no sensors connected
Sakari Ailus [Fri, 30 Nov 2018 22:30:48 +0000 (17:30 -0500)]
media: ipu3-cio2: Allow probe to succeed if there are no sensors connected

The device won't be powered off on systems that have no sensors connected
unless it has a driver bound to it. Allow that to happen even if there are
no sensors connected to cio2.

Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com>
Tested-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART_INTERVAL
Pawe? Chmiel [Wed, 9 Jan 2019 18:00:41 +0000 (13:00 -0500)]
media: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART_INTERVAL

This commit corrects max and step values for v4l2 control for
V4L2_CID_JPEG_RESTART_INTERVAL. Max should be 0xffff and step should be 1.
It was found by using v4l2-compliance tool and checking result of
VIDIOC_QUERY_EXT_CTRL/QUERYMENU test.
Previously it was complaining that step was bigger than difference
between max and min.

Fixes: 15f4bc3b1f42 ("[media] s5p-jpeg: Add JPEG controls support")

Signed-off-by: Pawe? Chmiel <pawel.mikolaj.chmiel@gmail.com>
Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: saa7146: make use of i2c_8bit_addr_from_msg
Peter Rosin [Wed, 9 Jan 2019 11:24:56 +0000 (06:24 -0500)]
media: saa7146: make use of i2c_8bit_addr_from_msg

Because it looks neater.

Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: rcar-csi2: Add support for RZ/G2E
Fabrizio Castro [Thu, 13 Dec 2018 20:24:12 +0000 (15:24 -0500)]
media: rcar-csi2: Add support for RZ/G2E

According to the RZ/G2 User's manual, RZ/G2E and R-Car E3 CSI-2
blocks are identical, therefore use R-Car E3 definitions to add
RZ/G2E support.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: rcar-vin: Add support for RZ/G2E
Fabrizio Castro [Thu, 13 Dec 2018 20:24:04 +0000 (15:24 -0500)]
media: rcar-vin: Add support for RZ/G2E

According to the RZ/G2 User's manual, RZ/G2E and R-Car E3 VIN
blocks are identical, therefore use R-Car E3 definitions to add
RZ/G2E support.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dt-bindings: rcar-vin: Add R8A774C0 support
Fabrizio Castro [Thu, 13 Dec 2018 20:21:59 +0000 (15:21 -0500)]
media: dt-bindings: rcar-vin: Add R8A774C0 support

Add the compatible string for RZ/G2E (a.k.a. R8A774C0) to the list
of SoCs supported by rcar-vin driver.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dt-bindings: rcar-csi2: Add r8a774c0
Fabrizio Castro [Thu, 13 Dec 2018 20:21:49 +0000 (15:21 -0500)]
media: dt-bindings: rcar-csi2: Add r8a774c0

Add the compatible string for RZ/G2E (a.k.a. R8A774C0) to the
list of supported SoCs.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: adv748x: configure number of lanes used for TXA CSI-2 transmitter
Niklas Söderlund [Thu, 29 Nov 2018 02:01:47 +0000 (21:01 -0500)]
media: i2c: adv748x: configure number of lanes used for TXA CSI-2 transmitter

The driver fixed the TXA CSI-2 transmitter in 4-lane mode while it could
operate using 1-, 2- and 4-lanes. Update the driver to support all
available modes.

The driver makes use of large tables of static register/value writes
when powering up/down the TXA and TXB transmitters which include the
write to the NUM_LANES register. By converting the tables into functions
and using parameters the power up/down functions for TXA and TXB power
up/down can be merged and used for both transmitters.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: adv748x: store number of CSI-2 lanes described in device tree
Niklas Söderlund [Thu, 29 Nov 2018 02:01:46 +0000 (21:01 -0500)]
media: i2c: adv748x: store number of CSI-2 lanes described in device tree

The adv748x CSI-2 transmitters TXA and TXB can use different number of
lanes to transmit data. In order to be able to configure the device
correctly this information need to be parsed from device tree and stored
in each TX private data structure.

TXA supports 1, 2 and 4 lanes while TXB supports 1 lane.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: i2c: adv748x: reuse power up sequence when initializing CSI-2
Niklas Söderlund [Thu, 29 Nov 2018 02:01:45 +0000 (21:01 -0500)]
media: i2c: adv748x: reuse power up sequence when initializing CSI-2

Extend the MIPI CSI-2 power up sequence to match the power up sequence
in the hardware manual chapter "9.5.1 Power Up Sequence". This change
allows the power up functions to be reused when initializing the
hardware reducing code duplicating as well aligning with the
documentation.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dt-bindings: adv748x: make data-lanes property mandatory for CSI-2 endpoints
Niklas Söderlund [Thu, 29 Nov 2018 02:01:44 +0000 (21:01 -0500)]
media: dt-bindings: adv748x: make data-lanes property mandatory for CSI-2 endpoints

The CSI-2 transmitters can use a different number of lanes to transmit
data. Make the data-lanes mandatory for the endpoints that describe the
transmitters as no good default can be set to fallback on.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dvb: Add check on sp8870_readreg
Aditya Pakki [Thu, 27 Dec 2018 18:58:01 +0000 (13:58 -0500)]
media: dvb: Add check on sp8870_readreg

In sp8870_set_frontend_parameters, the function sp8870_readreg
may return an error when i2c_transfer fails. The fix checks for
this error and returns upstream consistent with other invocations.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: dvb: add return value check on Write16
Aditya Pakki [Thu, 27 Dec 2018 18:47:20 +0000 (13:47 -0500)]
media: dvb: add return value check on Write16

Write16 can return an error code -1 when the i2c_write fails. The
fix checks for these failures and returns the error upstream

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: secocec: fix ir address shift
Ettore Chimenti [Thu, 27 Dec 2018 13:06:35 +0000 (08:06 -0500)]
media: secocec: fix ir address shift

The actual value of the RC5 System Number (address) is stored in the
IR_READ_DATA common register masked with 0x1F00 so it have to be shifted
by 8 bits.

Signed-off-by: Ettore Chimenti <ek5.chimenti@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: cxd2880-spi: fix two memory leaks of dvb_spi
Colin Ian King [Sat, 22 Dec 2018 14:12:26 +0000 (09:12 -0500)]
media: cxd2880-spi: fix two memory leaks of dvb_spi

There are two return paths that do not kfree dvb_spi. Fix the memory
leaks by returning via the exit label fail_adapter that will free
dvi_spi.

Detected by CoverityScan, CID#1475991 ("Resource Leak")

Fixes: cb496cd472af ("media: cxd2880-spi: Add optional vcc regulator")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>?
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: mt312: fix a missing check of mt312 reset
Kangjie Lu [Fri, 21 Dec 2018 07:07:20 +0000 (02:07 -0500)]
media: mt312: fix a missing check of mt312 reset

mt312_reset() may fail. Although it is called in the end of
mt312_set_frontend(), we better check its status and return its error
code upstream instead of 0.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Reviewed-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: lgdt3306a: fix a missing check of return value
Kangjie Lu [Thu, 20 Dec 2018 07:48:42 +0000 (02:48 -0500)]
media: lgdt3306a: fix a missing check of return value

If lgdt3306a_read_reg() fails, the read data in "val" is incorrect, thus
shouldn't be further used. The fix inserts a check for the return value
of lgdt3306a_read_reg(). If it fails, goto fail.

Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: seco-cec: fix RC_CORE dependency
Arnd Bergmann [Mon, 10 Dec 2018 20:41:40 +0000 (15:41 -0500)]
media: seco-cec: fix RC_CORE dependency

All other drivers that need RC_CORE have a dependency rather than using
'select', so we should do the same here to avoid circular dependencies
as well as this warning about missing dependencies:

WARNING: unmet direct dependencies detected for RC_CORE
  Depends on [n]: INPUT [=n]
  Selected by [y]:
  - VIDEO_SECO_RC [=y] && MEDIA_SUPPORT [=y] && CEC_PLATFORM_DRIVERS [=y] && VIDEO_SECO_CEC [=y]

Fixes: daef95769b3a ("media: seco-cec: add Consumer-IR support")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
5 years agomedia: rcar-vin: remove unneeded locking in async callbacks
Niklas Söderlund [Fri, 4 Jan 2019 16:12:18 +0000 (11:12 -0500)]
media: rcar-vin: remove unneeded locking in async callbacks

The locking implemented in the async notifier callbacks are unnecessary
as the global list_lock in v4l2-async.c is held whenever one of the
callbacks are called.

The locking in itself is not harmful however it produces a LOCKDEP
warning between the global v4l2-async list_lock and the rcar-vin local
locking schema. Remove the rcar-vin locking for the async callbacks to
reduce complexity and silent the false LOCKDEP warning.

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