platform/kernel/linux-rpi.git
8 years ago[media] ddbridge: Replace vmalloc with vzalloc
Amitoj Kaur Chawla [Mon, 20 Jun 2016 05:55:52 +0000 (02:55 -0300)]
[media] ddbridge: Replace vmalloc with vzalloc

vzalloc combines vmalloc and memset 0.

The Coccinelle semantic patch used to make this change is as follows:
@@
type T;
T *d;
expression e;
statement S;
@@

        d =
-            vmalloc
+            vzalloc
             (...);
        if (!d) S
-       memset(d, 0, sizeof(T));

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] dvb: use ktime_t for internal timeout
Arnd Bergmann [Fri, 17 Jun 2016 20:46:28 +0000 (17:46 -0300)]
[media] dvb: use ktime_t for internal timeout

The dvb demuxer code uses a 'struct timespec' to pass a timeout
as absolute time. This will cause problems on 32-bit architectures
in 2038 when time_t overflows, and it is racy with a concurrent
settimeofday() call.

This patch changes the code to use ktime_get() instead, using
the monotonic time base to avoid both the race and the overflow.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media: coda: Fix probe() if reset controller is missing
Alexander Shiyan [Sat, 18 Jun 2016 14:45:15 +0000 (11:45 -0300)]
[media] media: coda: Fix probe() if reset controller is missing

Commit 39b4da71ca33 ("reset: use ENOTSUPP instead of ENOSYS") changed
return value for reset controller if it missing.

This patch changes the CODA driver to handle this value.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] V4L: fix the Z16 format definition
Guennadi Liakhovetski [Fri, 17 Jun 2016 17:38:01 +0000 (14:38 -0300)]
[media] V4L: fix the Z16 format definition

A copy paste error created that format with the same one-line
description as Y8I and Y12I, whereas Z16 is quite different from them
both.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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@s-opensource.com>
8 years ago[media] vb2: Fix comment
Ricardo Ribalda [Mon, 20 Jun 2016 12:47:25 +0000 (09:47 -0300)]
[media] vb2: Fix comment

The comment was referencing the wrong function.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
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@s-opensource.com>
8 years ago[media] vb2: Merge vb2_internal_qbuf and vb2_qbuf
Ricardo Ribalda [Mon, 20 Jun 2016 12:47:24 +0000 (09:47 -0300)]
[media] vb2: Merge vb2_internal_qbuf and vb2_qbuf

After all the code refactoring, vb2_internal_qbuf is only called by
vb2_qbuf.

Since the function it is very simple, there is no need to have
two functions.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
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@s-opensource.com>
8 years ago[media] vb2: Merge vb2_internal_dqbuf and vb2_dqbuf
Ricardo Ribalda [Mon, 20 Jun 2016 12:47:23 +0000 (09:47 -0300)]
[media] vb2: Merge vb2_internal_dqbuf and vb2_dqbuf

After all the code refactoring, vb2_internal_dqbuf is only called by
vb2_dqbuf.

Since the function it is very simple, there is no need to have two
functions.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
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@s-opensource.com>
8 years ago[media] vb2: V4L2_BUF_FLAG_DONE is set after DQBUF
Ricardo Ribalda [Mon, 20 Jun 2016 12:47:22 +0000 (09:47 -0300)]
[media] vb2: V4L2_BUF_FLAG_DONE is set after DQBUF

According to the doc, V4L2_BUF_FLAG_DONE is cleared after DQBUF:

V4L2_BUF_FLAG_DONE 0x00000004  ... After calling the VIDIOC_QBUF or
VIDIOC_DQBUF it is always cleared ...

Unfortunately, it seems that videobuf2 keeps it set after DQBUF. This
can be tested with vivid and dev_debug:

[257604.338082] video1: VIDIOC_DQBUF: 71:33:25.00260479 index=3,
type=vid-cap, flags=0x00002004, field=none, sequence=163,
memory=userptr, bytesused=460800, offset/userptr=0x344b000,
length=460800

This patch forces FLAG_DONE to 0 after calling DQBUF.

Reported-by: Dimitrios Katsaros <patcherwork@gmail.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] sur40: drop unnecessary format description
Hans Verkuil [Mon, 27 Jun 2016 10:25:43 +0000 (07:25 -0300)]
[media] sur40: drop unnecessary format description

Don't fill in the format description. This is now done in the V4L2 core to ensure
consistent descriptions.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Nick Dyer <nick.dyer@itdev.co.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] usbtv: improve a comment
Lubomir Rintel [Wed, 1 Jun 2016 13:04:07 +0000 (10:04 -0300)]
[media] usbtv: improve a comment

Patrick Keshishian improved the explanation of the protocol when porting
the driver to OpenBSD. Given it's a reverse engineering one and there's
no documetnation it might be helpful to whoever hacks on the driver.

Signed-off-by: Patrick Keshishian <sidster@boxsoft.com>
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] usbtv: clarify the licensing
Lubomir Rintel [Wed, 1 Jun 2016 13:03:44 +0000 (10:03 -0300)]
[media] usbtv: clarify the licensing

OpenBSD would like to reuse some code but consider the licensing not
clear enough. Let's clarify it a bit so that it suits their conventions:

1.) Keep the "extra text" away from the copyright statement and the
rights grant.

2.) Add the warranty disclaimer -- it should not be legally required,
nevertheless the clause 1. of the rights grant refest to it.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Acked-by: Federico Simoncelli <fsimonce@redhat.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] sur40: fix occasional oopses on device close
Florian Echtler [Tue, 31 May 2016 20:15:33 +0000 (17:15 -0300)]
[media] sur40: fix occasional oopses on device close

Closing the V4L2 device sometimes triggers a kernel oops.
Present patch fixes this.

Signed-off-by: Martin Kaltenbrunner <modin@yuri.at>
Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org> # for v4.2 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] sur40: lower poll interval to fix occasional FPS drops to ~56 FPS
Florian Echtler [Tue, 31 May 2016 20:15:32 +0000 (17:15 -0300)]
[media] sur40: lower poll interval to fix occasional FPS drops to ~56 FPS

The framerate sometimes drops below 60 Hz if the poll interval is too high.
Lowering it to the minimum of 1 ms fixes this.

Signed-off-by: Martin Kaltenbrunner <modin@yuri.at>
Signed-off-by: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: <stable@vger.kernel.org> # for v4.2 and up
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] DocBook: mention the memory type to be set for all streaming I/O
Javier Martinez Canillas [Tue, 31 May 2016 16:56:08 +0000 (13:56 -0300)]
[media] DocBook: mention the memory type to be set for all streaming I/O

The DMA buffer importing streaming I/O section mentions the memory type
value that has to be set when calling the VIDIOC_REQBUFS ioctl but this
isn't mentioned in neither the Memory Mapping nor User Pointer sections.

A user can know the values by looking at the examples but it's better
to explicitly mention in the documentation, and also makes all sections
about streaming I/O methods more consistent.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] DocBook: add dmabuf as streaming I/O in VIDIOC_REQBUFS description
Javier Martinez Canillas [Tue, 31 May 2016 16:56:07 +0000 (13:56 -0300)]
[media] DocBook: add dmabuf as streaming I/O in VIDIOC_REQBUFS description

Commit 4b9c1cb641c46 ("[media] Documentation: media: description of DMABUF
importing in V4L2") documented the V4L2 dma-buf importing support but did
not update the VIDIOC_REQBUFS description, so only the Memory Mapping and
User Pointer I/O methods are mentioned.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] saa7164: Replace if and BUG with BUG_ON
Amitoj Kaur Chawla [Sat, 28 May 2016 16:43:39 +0000 (13:43 -0300)]
[media] saa7164: Replace if and BUG with BUG_ON

Replace if condition and BUG() with a BUG_ON having the conditional
expression of the if statement as argument.

The Coccinelle semantic patch used to make this change is as follows:
@@ expression E,f; @@

(
  if (<+... f(...) ...+>) { BUG(); }
|
- if (E) { BUG(); }
+ BUG_ON(E);
)

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] bt8xx: remove needless module refcounting
Alexey Khoroshilov [Fri, 8 Apr 2016 23:09:49 +0000 (20:09 -0300)]
[media] bt8xx: remove needless module refcounting

It is responsibility of a caller of fops->open(),
to make sure an owner of the fops is available until file is closed.
So, there is no need to lock THIS_MODULE explicitly.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] rc-main: fix kernel oops after unloading keymap module
Hans Verkuil [Sun, 26 Jun 2016 10:44:56 +0000 (07:44 -0300)]
[media] rc-main: fix kernel oops after unloading keymap module

When the rc_map table is created the char pointer of the name of the keymap
is copied to the rc_map->name field. However, this pointer points to memory
from the keymap module itself.

Since these keymap modules are not refcounted, that means anyone can call
rmmod to unload that module. Which is not a big deal because the contents of
the map is all copied to rc_map, except for the keymap name.

So after a keymap module is unloaded the name pointer has become stale. Unloading
the rc-core module will now cause a kernel oops in rc_dev_uevent().

The solution is to kstrdup the name so there are no more references to the
keymap module remaining.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] v4l2-tpg: ignore V4L2_DV_RGB_RANGE setting for YUV formats
Hans Verkuil [Tue, 28 Jun 2016 14:14:19 +0000 (11:14 -0300)]
[media] v4l2-tpg: ignore V4L2_DV_RGB_RANGE setting for YUV formats

The V4L2_DV_RGB_RANGE_* settings are, as the name says, for RGB formats only.
So they should be ignored for non-RGB formats.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] drivers/media/platform/Kconfig: fix VIDEO_MEDIATEK_VCODEC dependency
Hans Verkuil [Fri, 8 Jul 2016 19:11:19 +0000 (16:11 -0300)]
[media] drivers/media/platform/Kconfig: fix VIDEO_MEDIATEK_VCODEC dependency

Allow VIDEO_MEDIATEK_VCODEC to build when COMPILE_TEST is set (even
without MTK_IOMMU).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] mtk-vcodec: convert driver to use the new vb2_queue dev field
Hans Verkuil [Fri, 8 Jul 2016 19:11:18 +0000 (16:11 -0300)]
[media] mtk-vcodec: convert driver to use the new vb2_queue dev field

The patch dropping the vb2_dma_contig_init_ctx() and _cleanup_ctx()
functions was already applied before this driver was added. So convert
this driver as well.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] gspca: avoid unused variable warnings
Arnd Bergmann [Mon, 4 Jul 2016 13:21:40 +0000 (10:21 -0300)]
[media] gspca: avoid unused variable warnings

When CONFIG_INPUT is disabled, multiple gspca backend drivers
print compile-time warnings about unused variables:

media/usb/gspca/cpia1.c: In function 'sd_stopN':
media/usb/gspca/cpia1.c:1627:13: error: unused variable 'sd' [-Werror=unused-variable]
media/usb/gspca/konica.c: In function 'sd_stopN':
media/usb/gspca/konica.c:246:13: error: unused variable 'sd' [-Werror=unused-variable]

This annotates the variables as __maybe_unused, to let the compiler
know that they are declared intentionally.

Fixes: ee186fd96a5f ("[media] gscpa_t613: Add support for the camera button")
Fixes: c2f644aeeba3 ("[media] gspca_cpia1: Add support for button")
Fixes: b517af722860 ("V4L/DVB: gspca_konica: New gspca subdriver for konica chipset using cams")

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] gspca: correct speed testing
Oliver Neukum [Mon, 2 May 2016 11:22:26 +0000 (08:22 -0300)]
[media] gspca: correct speed testing

Allow for SS+ devices

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] MAINTAINERS: change maintainer for gscpa/pwc/radio-shark
Hans Verkuil [Mon, 4 Jul 2016 13:18:10 +0000 (10:18 -0300)]
[media] MAINTAINERS: change maintainer for gscpa/pwc/radio-shark

Hans de Goede has no more time to work on those, so I'll take over.
For gspca/pwc I'll do 'Odd Fixes', for radio-shark I'll be a
full maintainer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] hdpvr: Remove deprecated create_singlethread_workqueue
Bhaktipriya Shridhar [Sat, 2 Jul 2016 10:47:31 +0000 (07:47 -0300)]
[media] hdpvr: Remove deprecated create_singlethread_workqueue

The workqueue "workqueue" is involved in transmitting hdpvr buffers.
It has a single work item(&dev->worker) and hence doesn't require
ordering. Also, it is not being used on a memory reclaim path. Hence,
the singlethreaded workqueue has been replaced with the use of system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

Work item has been flushed in hdpvr_device_release() to ensure
that there are no pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] adv7604: Remove deprecated create_singlethread_workqueue
Bhaktipriya Shridhar [Sat, 2 Jul 2016 10:43:55 +0000 (07:43 -0300)]
[media] adv7604: Remove deprecated create_singlethread_workqueue

The workqueue "work_queues" enables hotplugging.
It has a single work item(&state->delayed_work_enable_hotplug) and hence
doesn't require ordering. Also, it is not being used on a memory
reclaim path. Hence, the singlethreaded workqueue has been replaced with
the use of system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

Work item has been sync cancelled in adv76xx_remove() to ensure
that there are no pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] tc358743: Remove deprecated create_singlethread_workqueue
Bhaktipriya Shridhar [Sat, 2 Jul 2016 10:41:53 +0000 (07:41 -0300)]
[media] tc358743: Remove deprecated create_singlethread_workqueue

The workqueue "work_queues" enables hotplugging.
It has a single work item(&state->delayed_work_enable_hotplug) and hence
doesn't require ordering. Also, it is not being used on a memory
reclaim path. Hence, the singlethreaded workqueue has been replaced with
the use of system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

Work item has been sync cancelled in tc358743_remove() to ensure
that there are no pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] adv7842: Remove deprecated create_singlethread_workqueue
Bhaktipriya Shridhar [Sat, 2 Jul 2016 10:37:22 +0000 (07:37 -0300)]
[media] adv7842: Remove deprecated create_singlethread_workqueue

The workqueue "work_queues" enables hotplugging.
It has a single work item(&state->delayed_work_enable_hotplug) and hence
doesn't require ordering. Also, it is not being used on a memory
reclaim path. Hence, the singlethreaded workqueue has been replaced with
the use of system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

Work item has been sync cancelled in adv7842_remove() to ensure
that there are no pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] sn9c20x: Remove deprecated create_singlethread_workqueue
Bhaktipriya Shridhar [Sat, 2 Jul 2016 10:51:22 +0000 (07:51 -0300)]
[media] sn9c20x: Remove deprecated create_singlethread_workqueue

The workqueue "work_thread" is involved in JPEG quality update.
It has a single work item(&sd->work) and hence doesn't require ordering.
Also, it is not being used on a memory reclaim path. Hence, the
singlethreaded workqueue has been replaced with the use of system_wq.

System workqueues have been able to handle high level of concurrency
for a long time now and hence it's not required to have a singlethreaded
workqueue just to gain concurrency. Unlike a dedicated per-cpu workqueue
created with create_singlethread_workqueue(), system_wq allows multiple
work items to overlap executions even on the same CPU; however, a
per-cpu workqueue doesn't have any CPU locality or global ordering
guarantee unless the target CPU is explicitly specified and thus the
increase of local concurrency shouldn't make any difference.

Work item has been flushed in sd_stop0() to ensure that there are no
pending tasks while disconnecting the driver.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] gspca: fix a v4l2-compliance failure about buffer timestamp
Antonio Ospite [Wed, 9 Mar 2016 16:03:19 +0000 (13:03 -0300)]
[media] gspca: fix a v4l2-compliance failure about buffer timestamp

v4l2-compliance fails with this message:

  fail: v4l2-test-buffers.cpp(250): \
      timestamp != V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC && \
      timestamp != V4L2_BUF_FLAG_TIMESTAMP_COPY
  ...
  test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL

When setting the frame time, gspca uses v4l2_get_timestamp() which uses
ktime_get_ts() which uses ktime_get_ts64() which returns a monotonic
timestamp, so it's safe to initialize the buffer flags to
V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC to fix the failure.

Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] gspca: fix a v4l2-compliance failure about VIDIOC_ENUM_FRAMEINTERVALS
Antonio Ospite [Wed, 9 Mar 2016 16:03:18 +0000 (13:03 -0300)]
[media] gspca: fix a v4l2-compliance failure about VIDIOC_ENUM_FRAMEINTERVALS

According to v4l2-compliance VIDIOC_ENUM_FRAMEINTERVALS should fail for
unsupported frame sizes, but gspca is too tolerant and tries to find
the frame intervals for the frame size nearest to the requested one.

This makes v4l2-compliance fail with this message:

  fail: v4l2-test-formats.cpp(123): \
      found frame intervals for invalid size 321x240
  test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: FAIL

Fix this by using an exact match for the frame size when enumerating
frame intervals, and retuning an error if the frame size for which the
frame intervals have been asked is not supported.

Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] gspca: rename wxh_to_mode() to wxh_to_nearest_mode()
Antonio Ospite [Wed, 9 Mar 2016 16:03:17 +0000 (13:03 -0300)]
[media] gspca: rename wxh_to_mode() to wxh_to_nearest_mode()

The name wxh_to_nearest_mode() reflects better what the function does.

Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] gspca: fix setting frame interval type in vidioc_enum_frameintervals()
Antonio Ospite [Wed, 9 Mar 2016 16:03:16 +0000 (13:03 -0300)]
[media] gspca: fix setting frame interval type in vidioc_enum_frameintervals()

Set the frame _interval_ type to V4L2_FRMIVAL_TYPE_DISCRETE instead of
using V4L2_FRMSIZE_TYPE_DISCRETE which is meant for frame _size_.

The old and new values happen to be the same so there is no functional
change.

Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] gspca: ov534/topro: use a define for the default framerate
Antonio Ospite [Wed, 9 Mar 2016 16:03:15 +0000 (13:03 -0300)]
[media] gspca: ov534/topro: use a define for the default framerate

When writing the change in commit dcc7fdbec53a ("[media] gspca:
ov534/topro: prevent a division by 0") I used magic numbers for the
default framerate to minimize the code footprint to make it easier to
backport the patch to the stable trees.

However it's better if the default framerate has its own define to avoid
risking using different values in different places, and for readability.

While at it also remove some trivial comments about the framerates which
don't add much to the code anymore.

Signed-off-by: Antonio Ospite <ao2@ao2.it>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] pwc: hide unused label
Arnd Bergmann [Tue, 26 Jan 2016 16:17:24 +0000 (14:17 -0200)]
[media] pwc: hide unused label

The pwc driver causes a warning when CONFIG_USB_PWC_INPUT_EVDEV is unset:

drivers/media/usb/pwc/pwc-if.c: In function 'usb_pwc_probe':
drivers/media/usb/pwc/pwc-if.c:1115:1: warning: label 'err_video_unreg' defined but not used [-Wunused-label]

This moves the unused label and code inside another #ifdef to
get rid of the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] vb2: replace void *alloc_ctxs by struct device *alloc_devs
Hans Verkuil [Fri, 15 Apr 2016 12:15:05 +0000 (09:15 -0300)]
[media] vb2: replace void *alloc_ctxs by struct device *alloc_devs

Make this a proper typed array. Drop the old allocate context code since
that is no longer used.

Note that the memops functions now get a struct device pointer instead of
the struct device ** that was there initially (actually a void pointer to
a struct containing only a struct device pointer).

This code is now a lot cleaner.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media/platform: convert drivers to use the new vb2_queue dev field
Hans Verkuil [Tue, 16 Feb 2016 09:30:19 +0000 (07:30 -0200)]
[media] media/platform: convert drivers to use the new vb2_queue dev field

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media/platform: convert drivers to use the new vb2_queue dev field
Hans Verkuil [Mon, 15 Feb 2016 16:25:09 +0000 (14:25 -0200)]
[media] media/platform: convert drivers to use the new vb2_queue dev field

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media/.../soc-camera: convert drivers to use the new vb2_queue dev field
Hans Verkuil [Mon, 15 Feb 2016 15:52:55 +0000 (13:52 -0200)]
[media] media/.../soc-camera: convert drivers to use the new vb2_queue dev field

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media/platform: convert drivers to use the new vb2_queue dev field
Hans Verkuil [Mon, 15 Feb 2016 15:41:51 +0000 (13:41 -0200)]
[media] media/platform: convert drivers to use the new vb2_queue dev field

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media/platform: convert drivers to use the new vb2_queue dev field
Hans Verkuil [Mon, 15 Feb 2016 15:24:11 +0000 (13:24 -0200)]
[media] media/platform: convert drivers to use the new vb2_queue dev field

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media/platform: convert drivers to use the new vb2_queue dev field
Hans Verkuil [Mon, 15 Feb 2016 15:09:10 +0000 (13:09 -0200)]
[media] media/platform: convert drivers to use the new vb2_queue dev field

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Cc: Scott Jiang <scott.jiang.linux@gmail.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] staging/media: convert drivers to use the new vb2_queue dev field
Hans Verkuil [Mon, 15 Feb 2016 14:58:44 +0000 (12:58 -0200)]
[media] staging/media: convert drivers to use the new vb2_queue dev field

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media/pci/tw686x: convert driver to use the new vb2_queue dev field
Hans Verkuil [Fri, 1 Jul 2016 09:50:17 +0000 (06:50 -0300)]
[media] media/pci/tw686x: convert driver to use the new vb2_queue dev field

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media/pci: convert drivers to use the new vb2_queue dev field
Hans Verkuil [Mon, 15 Feb 2016 14:37:15 +0000 (12:37 -0200)]
[media] media/pci: convert drivers to use the new vb2_queue dev field

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Federico Vaga <federico.vaga@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] sur40: set q->dev instead of allocating a context
Hans Verkuil [Wed, 16 Dec 2015 10:34:37 +0000 (08:34 -0200)]
[media] sur40: set q->dev instead of allocating a context

Stop using alloc_ctx and just fill in the device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Florian Echtler <floe@butterbrot.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] v4l2-pci-skeleton: set q->dev instead of allocating a context
Hans Verkuil [Wed, 16 Dec 2015 10:32:48 +0000 (08:32 -0200)]
[media] v4l2-pci-skeleton: set q->dev instead of allocating a context

Stop using alloc_ctx as that is now no longer needed.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] vb2: add a dev field to use for the default allocation context
Hans Verkuil [Wed, 16 Dec 2015 10:30:43 +0000 (08:30 -0200)]
[media] vb2: add a dev field to use for the default allocation context

The allocation context is nothing more than a per-plane device pointer
to use when allocating buffers. So just provide a dev pointer in vb2_queue
for that purpose and drivers can skip allocating/releasing/filling in
the allocation context unless they require different per-plane device
pointers as used by some Samsung SoCs.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: Florian Echtler <floe@butterbrot.org>
Cc: Federico Vaga <federico.vaga@gmail.com>
Cc: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Cc: Scott Jiang <scott.jiang.linux@gmail.com>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Fabien Dessenne <fabien.dessenne@st.com>
Acked-by: Benoit Parrot <bparrot@ti.com>
Cc: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] vb2: move dma_attrs to vb2_queue
Hans Verkuil [Fri, 15 Apr 2016 12:15:05 +0000 (09:15 -0300)]
[media] vb2: move dma_attrs to vb2_queue

Make the dma attributes struct part of vb2_queue. This greatly simplifies
the remainder of the patch series since the dma_contig alloc context is
now (as before) just a struct device pointer.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] exynos4-is: Fix buffer release issue on fimc m2m video nodes
Sylwester Nawrocki [Wed, 29 Jun 2016 09:31:30 +0000 (06:31 -0300)]
[media] exynos4-is: Fix buffer release issue on fimc m2m video nodes

This fixes dropping ownership of buffers in the driver's stop_streaming
callback, so buffers on the memory-to-memory video nodes are properly
released, also in case when the driver has a buffer only on one of the
queues (OUTPUT, CAPTURE) before the video node close.
The issue was being reported by videobuf2 with a following warning while
checking q->owned_by_drv_count:

[ 2498.310766] WARNING: CPU: 0 PID: 9358 at drivers/media/v4l2-core/videobuf2-core.c:1818 __vb2_queue_cancel+0xe8/0x14c
[ 2498.320258] Modules linked in:
[ 2498.323212] CPU: 0 PID: 9358 Comm: v4l2_decode Not tainted 4.7.0-rc4-next-20160627 #1210
[ 2498.331284] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 2498.331327] [<c010d738>] (unwind_backtrace) from [<c010a4b0>] (show_stack+0x10/0x14)
[ 2498.331344] [<c010a4b0>] (show_stack) from [<c031a4ac>] (dump_stack+0x74/0x94)
[ 2498.331358] [<c031a4ac>] (dump_stack) from [<c011a52c>] (__warn+0xd4/0x100)
[ 2498.331369] [<c011a52c>] (__warn) from [<c011a578>] (warn_slowpath_null+0x20/0x28)
[ 2498.331381] [<c011a578>] (warn_slowpath_null) from [<c04ed420>] (__vb2_queue_cancel+0xe8/0x14c)
[ 2498.331395] [<c04ed420>] (__vb2_queue_cancel) from [<c04ee10c>] (vb2_core_queue_release+0x18/0x38)
[ 2498.331406] [<c04ee10c>] (vb2_core_queue_release) from [<c04eab50>] (v4l2_m2m_ctx_release+0x1c/0x28)
[ 2498.331420] [<c04eab50>] (v4l2_m2m_ctx_release) from [<c04fe184>] (fimc_m2m_release+0x24/0x78)
[ 2498.331437] [<c04fe184>] (fimc_m2m_release) from [<c04d76c8>] (v4l2_release+0x34/0x74)
[ 2498.331455] [<c04d76c8>] (v4l2_release) from [<c01dc8d4>] (__fput+0x80/0x1bc)
[ 2498.331469] [<c01dc8d4>] (__fput) from [<c0132edc>] (task_work_run+0xc0/0xe4)
[ 2498.331482] [<c0132edc>] (task_work_run) from [<c011d460>] (do_exit+0x304/0xa24)
[ 2498.331493] [<c011d460>] (do_exit) from [<c011dccc>] (do_group_exit+0x3c/0xbc)
[ 2498.331505] [<c011dccc>] (do_group_exit) from [<c0126cac>] (get_signal+0x200/0x65c)
[ 2498.331517] [<c0126cac>] (get_signal) from [<c010e928>] (do_signal+0x84/0x3c4)
[ 2498.331532] [<c010e928>] (do_signal) from [<c010a0ec>] (do_work_pending+0xa4/0xb4)
[ 2498.331545] [<c010a0ec>] (do_work_pending) from [<c0107954>] (slow_work_pending+0xc/0x20)

Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] s5p-mfc: improve v4l2_capability driver and card fields
Javier Martinez Canillas [Thu, 16 Jun 2016 21:40:31 +0000 (18:40 -0300)]
[media] s5p-mfc: improve v4l2_capability driver and card fields

According to the V4L2 documentation the driver and card fields should be
used to identify the driver and the device but the s5p-mfc driver fills
those field using the platform device name, which in turn is the name of
the device DT node.

So not only the filled information isn't correct but also the same values
are used in all the fields for both the encoder and decoder video devices.

Before this patch:

Driver Info (not using libv4l2):
        Driver name   : 11000000.codec
        Card type     : 11000000.codec
        Bus info      : platform:11000000.codec
        Driver version: 4.7.0

Driver Info (not using libv4l2):
        Driver name   : 11000000.codec
        Card type     : 11000000.codec
        Bus info      : platform:11000000.codec
        Driver version: 4.7.0

After this patch:

Driver Info (not using libv4l2):
        Driver name   : s5p-mfc
        Card type     : s5p-mfc-dec
        Bus info      : platform:11000000.codec
        Driver version: 4.7.0

Driver Info (not using libv4l2):
        Driver name   : s5p-mfc
        Card type     : s5p-mfc-enc
        Bus info      : platform:11000000.codec
        Driver version: 4.7.0

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] s5p-mfc: set capablity bus_info as required by VIDIOC_QUERYCAP
Javier Martinez Canillas [Thu, 16 Jun 2016 21:40:30 +0000 (18:40 -0300)]
[media] s5p-mfc: set capablity bus_info as required by VIDIOC_QUERYCAP

The driver doesn't set the struct v4l2_capability bus_info field so the
v4l2-compliance tool reports the following errors for VIDIOC_QUERYCAP:

Required ioctls:
                VIDIOC_QUERYCAP returned 0 (Success)
                fail: v4l2-compliance.cpp(304): string empty
                fail: v4l2-compliance.cpp(528): check_ustring(vcap.bus_info, sizeof(vcap.bus_info))
        test VIDIOC_QUERYCAP: FAIL

This patch fixes by setting the field in VIDIOC_QUERYCAP ioctl handler:

Required ioctls:
                VIDIOC_QUERYCAP returned 0 (Success)
        test VIDIOC_QUERYCAP: OK

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] s5p-mfc: use vb2_is_streaming() to check vb2 queue status
Javier Martinez Canillas [Thu, 9 Jun 2016 20:25:14 +0000 (17:25 -0300)]
[media] s5p-mfc: use vb2_is_streaming() to check vb2 queue status

The streaming field in struct vb2_queue is meant to be private and should
not be used by drivers directly, instead the vb2_is_streaming() function
should be used to check the videobuf2 queue streaming status.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] s5p-mfc: don't print errors on VIDIOC_REQBUFS unsupported mem type
Javier Martinez Canillas [Thu, 9 Jun 2016 01:57:35 +0000 (22:57 -0300)]
[media] s5p-mfc: don't print errors on VIDIOC_REQBUFS unsupported mem type

The V4L2 documentation says that applications must call the VIDIOC_REQBUFS
ioctl to determine if a memory mapped, user pointer or DMABUF based I/O is
supported by the driver.

For example GStreamer does this by first calling VIDIOC_REQBUFS with count
zero for all the possible streaming I/O methods and then finally doing the
real VIDIOC_REQBUFS with count N using a known to be supported memory type.

But the driver prints an error on VIDIOC_REQBUFS if the memory type is not
supported which leads to the following errors that can confuse the users:

[  178.704390] vidioc_reqbufs:575: Only V4L2_MEMORY_MMAP is supported
[  178.704666] vidioc_reqbufs:575: Only V4L2_MEMORY_MMAP is supported
[  178.714956] vidioc_reqbufs:575: Only V4L2_MEMORY_MMAP is supported
[  178.715229] vidioc_reqbufs:575: Only V4L2_MEMORY_MMAP is supported

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] s5p-mfc: fix typo in s5p_mfc_dec function comment
Javier Martinez Canillas [Thu, 9 Jun 2016 01:57:34 +0000 (22:57 -0300)]
[media] s5p-mfc: fix typo in s5p_mfc_dec function comment

The function comment has an obvious typo error, so fix it.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] s5p-mfc: fix error path in driver probe
Marek Szyprowski [Wed, 8 Jun 2016 11:33:40 +0000 (08:33 -0300)]
[media] s5p-mfc: fix error path in driver probe

This patch fixes the error path in the driver probe, so in case of
any failure, the resources are not leaked.

Reported-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] s5p-mfc: fix null pointer deference in clk_core_enable()
Shuah Khan [Tue, 28 Jun 2016 19:17:18 +0000 (16:17 -0300)]
[media] s5p-mfc: fix null pointer deference in clk_core_enable()

Fix null pointer deference in clk_core_enable() when driver unbind is run
when there is an application has an active pipeline playing.

s5p_mfc_release() gets called after s5p_mfc_final_pm() disables and does
clk_put() and s5p_mfc_release() attempts to enable clock and runs into
null pointer deference accessing invalid pointer.

[ 4869.434709] Unable to handle kernel NULL pointer dereference at virtual addr0
[ 4869.441312] pgd = e91ac000
[ 4869.443996] [00000010] *pgd=ba4f7835
[ 4869.447552] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
[ 4869.452921] Modules linked in: cpufreq_userspace cpufreq_powersave cpufreq_ca
[ 4869.471728] CPU: 4 PID: 2965 Comm: lt-gst-launch-1 Not tainted 4.7.0-rc2-nex0
[ 4869.481778] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 4869.487844] task: e91f1e00 ti: ed650000 task.ti: ed650000
[ 4869.493227] PC is at clk_core_enable+0x4c/0x98
[ 4869.497637] LR is at clk_core_enable+0x40/0x98
[ 4869.502056] pc : [<c0559714>]    lr : [<c0559708>]    psr: 60060093
[ 4869.502056] sp : ed651f18  ip : 00000000  fp : 002641b4
[ 4869.513493] r10: e9088c08  r9 : 00000008  r8 : ed676d68
[ 4869.518692] r7 : ee3ac000  r6 : bf16b3c0  r5 : a0060013  r4 : ee37a8c0
[ 4869.525191] r3 : 00000000  r2 : 00000001  r1 : 00000004  r0 : 00000000
[ 4869.531692] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment noe
[ 4869.538883] Control: 10c5387d  Table: 691ac06a  DAC: 00000051
[ 4869.544603] Process lt-gst-launch-1 (pid: 2965, stack limit = 0xed650210)
[ 4869.551361] Stack: (0xed651f18 to 0xed652000)
[ 4869.555694] 1f00:                                                       ee373
[ 4869.563841] 1f20: bf16b3c0 c055a0e0 ee3ac004 ed676c10 bf16b3c0 bf1558e0 e9080
[ 4869.571986] 1f40: 00000000 ee98a510 ee502e40 bf047344 e9088c00 ee986938 00004
[ 4869.580132] 1f60: 00000000 00000000 e91f2204 00000000 c0b4658c e91f1e00 c0100
[ 4869.588277] 1f80: 00000000 c0135c58 ed650000 c0107904 ed651fb0 00000006 c0104
[ 4869.596423] 1fa0: 00229500 b6581000 b6f7b544 c0107794 00000000 00000002 b6f90
[ 4869.604568] 1fc0: 00229500 b6581000 b6f7b544 00000006 0017b600 0002c038 00264
[ 4869.612714] 1fe0: 00000000 bee56ef0 00000000 b6d49612 00060030 00000006 00000
[ 4869.620865] [<c0559714>] (clk_core_enable) from [<c055a0e0>] (clk_enable+0x2)
[ 4869.628509] [<c055a0e0>] (clk_enable) from [<bf1558e0>] (s5p_mfc_release+0x3)
[ 4869.637111] [<bf1558e0>] (s5p_mfc_release [s5p_mfc]) from [<bf047344>] (v4l2)
[ 4869.646706] [<bf047344>] (v4l2_release [videodev]) from [<c01e4274>] (__fput)
[ 4869.654745] [<c01e4274>] (__fput) from [<c0135c58>] (task_work_run+0x94/0xc8)
[ 4869.661852] [<c0135c58>] (task_work_run) from [<c010a9d4>] (do_work_pending+)
[ 4869.669735] [<c010a9d4>] (do_work_pending) from [<c0107794>] (slow_work_pend)
[ 4869.677878] Code: ebffffef e3500000 18bd8070 e5943004 (e5933010)

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] s5p-mfc: fix memory leak in s5p_mfc_remove()
Shuah Khan [Tue, 28 Jun 2016 19:17:17 +0000 (16:17 -0300)]
[media] s5p-mfc: fix memory leak in s5p_mfc_remove()

s5p_mfc_remove() fails to release encoder and decoder video devices.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] s5p-mfc: fix video device release double release in probe error path
Shuah Khan [Tue, 28 Jun 2016 19:17:16 +0000 (16:17 -0300)]
[media] s5p-mfc: fix video device release double release in probe error path

Fix Decoder and encoder video device double release in probe error path.
video_device_release(dev->vfd_dec) get called twice if decoder register
fails. Also, video_device_release(dev->vfd_enc) get called twice if encoder
register fails.

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] arm64: dts: mediatek: Add Video Encoder for MT8173
Tiffany Lin [Tue, 3 May 2016 10:11:27 +0000 (07:11 -0300)]
[media] arm64: dts: mediatek: Add Video Encoder for MT8173

Add video encoder node for MT8173

Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] vcodec: mediatek: Add Mediatek H264 Video Encoder Driver
Tiffany Lin [Tue, 3 May 2016 10:11:26 +0000 (07:11 -0300)]
[media] vcodec: mediatek: Add Mediatek H264 Video Encoder Driver

Add h264 encoder driver for MT8173

Signed-off-by: PoChun Lin <pochun.lin@mediatek.com>
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] vcodec: mediatek: Add Mediatek VP8 Video Encoder Driver
Tiffany Lin [Tue, 3 May 2016 10:11:25 +0000 (07:11 -0300)]
[media] vcodec: mediatek: Add Mediatek VP8 Video Encoder Driver

Add vp8 encoder driver for MT8173

Signed-off-by: PoChun Lin <pochun.lin@mediatek.com>
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver
Tiffany Lin [Tue, 3 May 2016 10:11:24 +0000 (07:11 -0300)]
[media] vcodec: mediatek: Add Mediatek V4L2 Video Encoder Driver

Add v4l2 layer encoder driver for MT8173

Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
[hans.verkuil@cisco.com: drop unnecessary ARM || ARM64 dependency]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] dt-bindings: Add a binding for Mediatek Video Encoder
Tiffany Lin [Tue, 3 May 2016 10:11:23 +0000 (07:11 -0300)]
[media] dt-bindings: Add a binding for Mediatek Video Encoder

Add a DT binding documentation of Video Encoder for the
MT8173 SoC from Mediatek.

Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] arm64: dts: mediatek: Add node for Mediatek Video Processor Unit
Andrew-CT Chen [Tue, 3 May 2016 10:11:22 +0000 (07:11 -0300)]
[media] arm64: dts: mediatek: Add node for Mediatek Video Processor Unit

Add VPU drivers for MT8173

Signed-off-by: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] VPU: mediatek: support Mediatek VPU
Andrew-CT Chen [Tue, 3 May 2016 10:11:21 +0000 (07:11 -0300)]
[media] VPU: mediatek: support Mediatek VPU

The VPU driver for hw video codec embedded in Mediatek's MT8173 SOCs.
It is able to handle video decoding/encoding of in a range of formats.
The driver provides with VPU firmware download, memory management and
the communication interface between CPU and VPU.
For VPU initialization, it will create virtual memory for CPU access and
IOMMU address for vcodec hw device access. When a decode/encode instance
opens a device node, vpu driver will download vpu firmware to the device.
A decode/encode instant will decode/encode a frame using VPU
interface to interrupt vpu to handle decoding/encoding jobs.

Signed-off-by: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
[hans.verkuil@cisco.com: drop unnecessary ARM || ARM64 dependency]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] videodev2.h: Fix V4L2_PIX_FMT_YUV411P description
Laurent Pinchart [Wed, 15 Jun 2016 23:35:36 +0000 (20:35 -0300)]
[media] videodev2.h: Fix V4L2_PIX_FMT_YUV411P description

YUV 4:1:1 uses 12 bits per pixel on average, not 16.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] videodev2.h: Group YUV 3 planes formats together
Laurent Pinchart [Wed, 15 Jun 2016 23:27:58 +0000 (20:27 -0300)]
[media] videodev2.h: Group YUV 3 planes formats together

The formats are interleaved with the YUV packed and miscellaneous
formats, making the result confusing especially with the YUV444 format
being packed and not planar like YUV410 or YUV420. Move them to their
own group as the 2 planes or 3 non-contiguous planes formats to clarify
the header.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media: rcar-vin: add DV timings support
Ulrich Hecht [Wed, 11 May 2016 14:02:53 +0000 (11:02 -0300)]
[media] media: rcar-vin: add DV timings support

Adds ioctls DV_TIMINGS_CAP, ENUM_DV_TIMINGS, G_DV_TIMINGS, S_DV_TIMINGS,
and QUERY_DV_TIMINGS.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media: rcar_vin: Use correct pad number in try_fmt
Ulrich Hecht [Wed, 11 May 2016 14:02:51 +0000 (11:02 -0300)]
[media] media: rcar_vin: Use correct pad number in try_fmt

Fix rcar_vin_try_fmt's use of an inappropriate pad number when calling
the subdev set_fmt function - for the ADV7612, IDs should be non-zero.

Signed-off-by: William Towle <william.towle@codethink.co.uk>
Reviewed-by: Rob Taylor <rob.taylor@codethink.co.uk>
[ulrich.hecht+renesas@gmail.com: adapted to rcar-vin rewrite]
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] media: rcar-vin: pad-aware driver initialisation
Ulrich Hecht [Wed, 11 May 2016 14:02:52 +0000 (11:02 -0300)]
[media] media: rcar-vin: pad-aware driver initialisation

Add detection of source pad number for drivers aware of the media controller
API, so that rcar-vin can create device nodes to support modern drivers such
as adv7604.c (for HDMI on Lager) and the converted adv7180.c (for composite)
underneath.

Building rcar_vin gains a dependency on CONFIG_MEDIA_CONTROLLER, in
line with requirements for building the drivers associated with it.

Signed-off-by: William Towle <william.towle@codethink.co.uk>
Signed-off-by: Rob Taylor <rob.taylor@codethink.co.uk>
[ulrich.hecht+renesas@gmail.com: adapted to rcar-vin rewrite]
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] v4l2-ctrl.h: fix comments
Hans Verkuil [Wed, 15 Jun 2016 12:57:48 +0000 (09:57 -0300)]
[media] v4l2-ctrl.h: fix comments

The comments for the unlocked v4l2_ctrl_s_ctrl* functions were wrong (copy
and pasted from the locked variants). Fix this, since it is confusing.

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@s-opensource.com>
8 years ago[media] radio-maxiradio: fix memory leak when device is removed
Alexey Khoroshilov [Fri, 3 Jun 2016 22:33:06 +0000 (19:33 -0300)]
[media] radio-maxiradio: fix memory leak when device is removed

Memory allocated for maxiradio device is not deallocated when
the device is removed.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] stk1160: Check *nplanes in queue_setup
Helen Fornazier [Tue, 10 May 2016 03:06:14 +0000 (00:06 -0300)]
[media] stk1160: Check *nplanes in queue_setup

If *nplanes is not zero, it should use the requested size if valid

Signed-off-by: Helen Koike <helen.koike@collabora.co.uk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] solo6x10: Simplify solo_enum_ext_input
Ismael Luceno [Wed, 4 May 2016 16:21:21 +0000 (13:21 -0300)]
[media] solo6x10: Simplify solo_enum_ext_input

Additionally, now it specifies which channels it's showing.

Signed-off-by: Ismael Luceno <ismael@iodev.co.uk>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] adv7604: Don't ignore pad number in subdev DV timings pad operations
Laurent Pinchart [Tue, 24 May 2016 11:53:39 +0000 (08:53 -0300)]
[media] adv7604: Don't ignore pad number in subdev DV timings pad operations

The dv_timings_cap() and enum_dv_timings() pad operations take a pad
number as an input argument and return the DV timings capabilities and
list of supported DV timings for that pad.

Commit bd3e275f3ec0 ("[media] media: i2c: adv7604: Use v4l2-dv-timings
helpers") broke this as it started ignoring the pad number, always
returning the information associated with the currently selected input.
Fix it.

Fixes: bd3e275f3ec0 ("[media] media: i2c: adv7604: Use v4l2-dv-timings helpers")

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] v4l: mt9v032: Add V4L2 controls for AEC and AGC
Markus Pargmann [Mon, 14 Dec 2015 14:41:53 +0000 (12:41 -0200)]
[media] v4l: mt9v032: Add V4L2 controls for AEC and AGC

This patch adds V4L2 controls for Auto Exposure Control and Auto Gain
Control settings. These settings include low pass filter, update
frequency of these settings and the update interval for those units.

[Avoid forward declarations]
[Fix 80 columns limit violation]
[Rename controls to avoid underscores in names]
[Fix the AEC maximum shutter width on MT9V032]

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] v4l: mt9v032: Do not unset master_mode
Markus Pargmann [Mon, 14 Dec 2015 14:41:52 +0000 (12:41 -0200)]
[media] v4l: mt9v032: Do not unset master_mode

The power_on function of the driver resets the chip and sets the
CHIP_CONTROL register to 0. This switches the operating mode to slave.
The s_stream function sets the correct mode. But this caused problems on
a board where the camera chip is operated as master. The camera started
after a random amount of time streaming an image, I observed between 10
and 300 seconds.

The STRFM_OUT and STLN_OUT pins are not connected on this board which
may cause some issues in slave mode. I could not find any documentation
about this.

Keeping the chip in master mode after the reset helped to fix this
issue for me.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] v4l: mt9v032: Remove duplicate test for I2C_FUNC_SMBUS_WORD_DATA functionality
Axel Lin [Sun, 10 Aug 2014 09:41:49 +0000 (06:41 -0300)]
[media] v4l: mt9v032: Remove duplicate test for I2C_FUNC_SMBUS_WORD_DATA functionality

Since commit b42261078a91 ("regmap: i2c: fallback to SMBus if the adapter
does not support standard I2C"), regmap-i2c will check the
I2C_FUNC_SMBUS_[BYTE|WORD]_DATA functionality based on the regmap_config
setting if the adapter does not support standard I2C.

So remove the I2C_FUNC_SMBUS_WORD_DATA functionality check in the driver code.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] v4l: mt9v032: Remove unneeded header
Laurent Pinchart [Mon, 9 Nov 2015 14:36:48 +0000 (12:36 -0200)]
[media] v4l: mt9v032: Remove unneeded header

The of_gpio.h header isn't needed, don't include it.

Reported-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] v4l: mt9t001: fix clean up in case of power-on failures
Guennadi Liakhovetski [Mon, 14 Dec 2015 09:58:29 +0000 (07:58 -0200)]
[media] v4l: mt9t001: fix clean up in case of power-on failures

If the driver fails to reset the camera or to set up control handlers, it
has to power the camera back off.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] v4l: mt9t001: constify v4l2_subdev_internal_ops structure
Julia Lawall [Sun, 11 Oct 2015 11:57:13 +0000 (08:57 -0300)]
[media] v4l: mt9t001: constify v4l2_subdev_internal_ops structure

This v4l2_subdev_internal_ops structure is never modified.  All other
v4l2_subdev_internal_ops structures are declared as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] smiapp: Remove useless rval assignment in smiapp_get_pdata()
Sakari Ailus [Fri, 10 Apr 2015 22:42:47 +0000 (19:42 -0300)]
[media] smiapp: Remove useless rval assignment in smiapp_get_pdata()

The value is not used after the assignment.

Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] tw686x: be explicit about the possible dma_mode options
Hans Verkuil [Mon, 27 Jun 2016 08:28:59 +0000 (05:28 -0300)]
[media] tw686x: be explicit about the possible dma_mode options

Users won't know what to put in this module option if it isn't
described.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] tw686x: audio: Prevent hw param changes while busy
Ezequiel Garcia [Sat, 4 Jun 2016 23:47:20 +0000 (20:47 -0300)]
[media] tw686x: audio: Prevent hw param changes while busy

Audio hw params are shared across all DMA channels,
so if the user changes any of these while any DMA channel is
enabled, it will impact the enabled channels, potentially causing
serious instability issues.

This commit avoids such situation, by preventing any hw param
change (on any DMA channel) if any other DMA audio channel is capturing.

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] tw686x: audio: Allow to configure the period size
Ezequiel Garcia [Sat, 4 Jun 2016 23:47:19 +0000 (20:47 -0300)]
[media] tw686x: audio: Allow to configure the period size

Currently, the driver has a fixed period size of 4096 bytes
(2048 frames). Since this hardware can configure the audio
capture size, this commit allows a period size range of [512-4096].

This is very useful to reduce the audio latency.

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] tw686x: audio: Implement non-memcpy capture
Ezequiel Garcia [Sat, 4 Jun 2016 23:47:18 +0000 (20:47 -0300)]
[media] tw686x: audio: Implement non-memcpy capture

Now that we've introduced the dma_mode parameter to pick the
DMA operation, let's use it to also select the audio DMA
operation.

When dma_mode != memcpy, the driver will avoid using memcpy
in the audio capture path, and the DMA hardware operation
will act directly on the ALSA buffers.

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] tw686x: Add support for DMA scatter-gather mode
Ezequiel Garcia [Sat, 4 Jun 2016 23:47:17 +0000 (20:47 -0300)]
[media] tw686x: Add support for DMA scatter-gather mode

Now that the driver has the infrastructure to support more
DMA modes, let's add the DMA scatter-gather mode.

In this mode, the device delivers sequential top-bottom
frames. The scatter-gather logic is based on staging's
tw686x-kh driver (by Krzysztof Ha?asa).

Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] tw686x: Add support for DMA contiguous interlaced frame mode
Ezequiel Garcia [Sat, 4 Jun 2016 23:47:16 +0000 (20:47 -0300)]
[media] tw686x: Add support for DMA contiguous interlaced frame mode

Now that the driver has the infrastructure to support more
DMA modes, let's add the DMA contiguous interlaced frame mode.

In this mode, the DMA P and B buffers are programmed with
the user-provided buffers. When a P (or B) frame is ready,
a new buffer is dequeued into P (or B).

In addition to interlaced fields, the device can also be
programmed to deliver alternate fields. Only interlaced
mode is supported for now.

Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years ago[media] tw686x: Introduce an interface to support multiple DMA modes
Ezequiel Garcia [Sat, 4 Jun 2016 23:47:15 +0000 (20:47 -0300)]
[media] tw686x: Introduce an interface to support multiple DMA modes

Let's set the corner stone to support all the DMA modes
available on this device.

For stability reasons, the driver is currently setting DMA frame
mode, and using single DMA buffers to get the P and B buffers.
Each frame is then memcpy'ed into the user buffer.

However, other platforms might be interested in avoiding this
memcpy, or in taking advantage of the chip's DMA scatter-gather
capabilities.

To achieve this, this commit introduces a "dma_mode" module parameter,
and a tw686x_dma_ops struct. This will allow to define functions to
alloc/free DMA buffers, and to return the frames to userspace.

The memcpy-based method described above is named as dma_mode="memcpy".
Current alloc/free functions are renamed as tw686x_memcpy_xxx,
and are now used through a memcpy_dma_ops.

Tested-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agobdisp: move the V/H filter spec to bdisp-hw.c
Mauro Carvalho Chehab [Fri, 24 Jun 2016 15:27:51 +0000 (12:27 -0300)]
bdisp: move the V/H filter spec to bdisp-hw.c

Those structs are used only at bdisp-hw, so they shouldn't be
there in a header file that it is used elsewhere.

This fixes the following Gcc 6.1 warnings:

In file included from drivers/media/platform/sti/bdisp/bdisp-debug.c:11:0:
drivers/media/platform/sti/bdisp/bdisp-filter.h:207:65: warning: ‘bdisp_v_spec’ defined but not used [-Wunused-const-variable=]
 static const struct __maybe_unused bdisp_filter_v_spec bdisp_v_spec[] = {
                                                                 ^~~~~~~~~
In file included from drivers/media/platform/sti/bdisp/bdisp-debug.c:11:0:
drivers/media/platform/sti/bdisp/bdisp-filter.h:23:65: warning: ‘bdisp_h_spec’ defined but not used [-Wunused-const-variable=]
 static const struct __maybe_unused bdisp_filter_h_spec bdisp_h_spec[] = {
                                                                 ^~~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agoadv7842: comment out a table useful for debug
Mauro Carvalho Chehab [Fri, 24 Jun 2016 15:17:27 +0000 (12:17 -0300)]
adv7842: comment out a table useful for debug

Gcc 6.1 warns about an unused table:

drivers/media/i2c/adv7842.c:2400:27: warning: 'prim_mode_txt' defined but not used [-Wunused-const-variable=]
 static const char * const prim_mode_txt[] = {
                           ^~~~~~~~~~~~~

That seems to be useful for debug, and likely were used before.
While we could simply remove, let's comment it out, for now.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agoem28xx-dvb: remove some left over
Mauro Carvalho Chehab [Fri, 24 Jun 2016 15:10:55 +0000 (12:10 -0300)]
em28xx-dvb: remove some left over

Gcc 6.1 warns about an unused table:

drivers/media/usb/em28xx/em28xx-dvb.c:907:38: warning: 'pctv_461e_m88ds3103_config' defined but not used [-Wunused-const-variable=]
 static const struct m88ds3103_config pctv_461e_m88ds3103_config = {
                                      ^~~~~~~~~~~~~~~~~~~~~~~~~~

That's a left over of patch 76b91be3d360a ('em28xx: PCTV 461e use I2C
client for demod and SEC').

Remove the dead code.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agovivid: remove some unused vars
Mauro Carvalho Chehab [Fri, 24 Jun 2016 15:09:49 +0000 (12:09 -0300)]
vivid: remove some unused vars

Gcc 6.1 warns about some unused vars. Remove them:
drivers/media/platform/vivid/vivid-vid-cap.c:40:2: warning: 'tpf_default' defined but not used [-Wunused-const-variable=]
  tpf_default = {.numerator = 1,  .denominator = 30};
  ^~~~~~~~~~~
drivers/media/platform/vivid/vivid-sdr-cap.c:54:27: warning: 'NUM_FORMATS' defined but not used [-Wunused-const-variable=]
 static const unsigned int NUM_FORMATS = ARRAY_SIZE(formats);
                           ^~~~~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agozr36016: remove some unused tables
Mauro Carvalho Chehab [Fri, 24 Jun 2016 15:02:11 +0000 (12:02 -0300)]
zr36016: remove some unused tables

Gcc 6.1 warns about some unused tables:

drivers/media/pci/zoran/zr36016.c:251:18: warning: 'zr016_yoff' defined but not used [-Wunused-const-variable=]
 static const int zr016_yoff[] = { 8, 9, 7 };
                  ^~~~~~~~~~
drivers/media/pci/zoran/zr36016.c:250:18: warning: 'zr016_xoff' defined but not used [-Wunused-const-variable=]
 static const int zr016_xoff[] = { 20, 20, 20 };
                  ^~~~~~~~~~

Those tables aren't used anywere. So, remove them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agor820t: comment out two ancillary tables
Mauro Carvalho Chehab [Fri, 24 Jun 2016 15:00:02 +0000 (12:00 -0300)]
r820t: comment out two ancillary tables

As Gcc6.1 warned, those tables are currently unused:
drivers/media/tuners/r820t.c:349:18: warning: 'r820t_mixer_gain_steps' defined but not used [-Wunused-const-variable=]
 static const int r820t_mixer_gain_steps[]  = {
                  ^~~~~~~~~~~~~~~~~~~~~~
drivers/media/tuners/r820t.c:345:18: warning: 'r820t_lna_gain_steps' defined but not used [-Wunused-const-variable=]
 static const int r820t_lna_gain_steps[]  = {
                  ^~~~~~~~~~~~~~~~~~~~

They're actually used only by a routine that it is currently
commented out. So, move those tables to be together with such
code and comment them out.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agodib0090: comment out the unused tables
Mauro Carvalho Chehab [Fri, 24 Jun 2016 14:12:17 +0000 (11:12 -0300)]
dib0090: comment out the unused tables

Those tables are currently unused, so comment them out:

drivers/media/dvb-frontends/dib0090.c:852:18: warning: 'rf_ramp_pwm_sband' defined but not used [-Wunused-const-variable=]
 static const u16 rf_ramp_pwm_sband[] = {
                  ^~~~~~~~~~~~~~~~~
drivers/media/dvb-frontends/dib0090.c:800:18: warning: 'bb_ramp_pwm_boost' defined but not used [-Wunused-const-variable=]
 static const u16 bb_ramp_pwm_boost[] = {
                  ^~~~~~~~~~~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agodrxj: comment out the unused nicam_presc_table_val table
Mauro Carvalho Chehab [Fri, 24 Jun 2016 14:10:16 +0000 (11:10 -0300)]
drxj: comment out the unused nicam_presc_table_val table

Avoid this warning:

drivers/media/dvb-frontends/drx39xyj/drxj.c:1243:18: warning: 'nicam_presc_table_val' defined but not used [-Wunused-const-variable=]
 static const u16 nicam_presc_table_val[43] = {
                  ^~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agocx25821-alsa: shutup a Gcc 6.1 warning
Mauro Carvalho Chehab [Fri, 24 Jun 2016 12:46:54 +0000 (09:46 -0300)]
cx25821-alsa: shutup a Gcc 6.1 warning

The PCI device ID table is only used if compiled with modules
support. When compiled with modules disabled, this is now
producing this bogus warning:

drivers/media/pci/cx25821/cx25821-alsa.c:696:35: warning: 'cx25821_audio_pci_tbl' defined but not used [-Wunused-const-variable=]
 static const struct pci_device_id cx25821_audio_pci_tbl[] = {
                                   ^~~~~~~~~~~~~~~~~~~~~

Fix it by annotating that the function may not be used.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
8 years agom5602_ov7660: move skeletons to the .c file
Mauro Carvalho Chehab [Fri, 24 Jun 2016 12:37:43 +0000 (09:37 -0300)]
m5602_ov7660: move skeletons to the .c file

The header file has some private static structures that
are used only by the C file. Move those structures to the C file,
in order to shut up gcc 6.1 warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>