cascardo/linux.git
7 years agoMerge branch 'patchwork' into topic/docs-next
Mauro Carvalho Chehab [Sat, 23 Jul 2016 10:59:19 +0000 (07:59 -0300)]
Merge branch 'patchwork' into topic/docs-next

* patchwork: (1492 commits)
  [media] cec: always check all_device_types and features
  [media] cec: poll should check if there is room in the tx queue
  [media] vivid: support monitor all mode
  [media] cec: fix test for unconfigured adapter in main message loop
  [media] cec: limit the size of the transmit queue
  [media] cec: zero unused msg part after msg->len
  [media] cec: don't set fh to NULL in CEC_TRANSMIT
  [media] cec: clear all status fields before transmit and always fill in sequence
  [media] cec: CEC_RECEIVE overwrote the timeout field
  [media] cxd2841er: Reading SNR for DVB-C added
  [media] cxd2841er: Reading BER and UCB for DVB-C added
  [media] cxd2841er: fix switch-case for DVB-C
  [media] cxd2841er: fix signal strength scale for ISDB-T
  [media] cxd2841er: adjust the dB scale for DVB-C
  [media] cxd2841er: provide signal strength for DVB-C
  [media] cxd2841er: fix BER report via DVBv5 stats API
  [media] mb86a20s: apply mask to val after checking for read failure
  [media] airspy: fix error logic during device register
  [media] s5p-cec/TODO: add TODO item
  [media] cec/TODO: drop comment about sphinx documentation
  ...

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years agoMerge branch 'docs-next' of git://git.lwn.net/linux into topic/docs-next
Mauro Carvalho Chehab [Sat, 23 Jul 2016 10:55:59 +0000 (07:55 -0300)]
Merge branch 'docs-next' of git://git.lwn.net/linux into topic/docs-next

* 'docs-next' of git://git.lwn.net/linux:
  doc-rst: kernel-doc: fix handling of address_space tags
  Revert "doc/sphinx: Enable keep_warnings"
  doc-rst: kernel-doc directive, fix state machine reporter
  docs: deprecate kernel-doc-nano-HOWTO.txt
  doc/sphinx: Enable keep_warnings
  Documentation: add watermark_scale_factor to the list of vm systcl file
  kernel-doc: Fix up warning output
  docs: Get rid of some kernel-documentation warnings

7 years agodoc-rst: kernel-doc: fix handling of address_space tags
Mauro Carvalho Chehab [Fri, 22 Jul 2016 14:46:36 +0000 (11:46 -0300)]
doc-rst: kernel-doc: fix handling of address_space tags

The RST cpp:function handler is very pedantic: it doesn't allow any
macros like __user on it:

Documentation/media/kapi/dtv-core.rst:28: WARNING: Error when parsing function declaration.
If the function has no return type:
  Error in declarator or parameters and qualifiers
  Invalid definition: Expecting "(" in parameters_and_qualifiers. [error at 8]
    ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len)
    --------^
If the function has a return type:
  Error in declarator or parameters and qualifiers
  If pointer to member declarator:
    Invalid definition: Expected '::' in pointer to member (function). [error at 37]
      ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len)
      -------------------------------------^
  If declarator-id:
    Invalid definition: Expecting "," or ")" in parameters_and_qualifiers, got "*". [error at 102]
      ssize_t dvb_ringbuffer_pkt_read_user (struct dvb_ringbuffer * rbuf, size_t idx, int offset, u8 __user * buf, size_t len)
      ------------------------------------------------------------------------------------------------------^

So, we have to remove it from the function prototype.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
7 years agoRevert "doc/sphinx: Enable keep_warnings"
Jonathan Corbet [Wed, 20 Jul 2016 22:56:21 +0000 (16:56 -0600)]
Revert "doc/sphinx: Enable keep_warnings"

This reverts commit 47d6d752b9e20dbe8a2acd22e887be81a6f39de9.

Commit f42ddca7bebc (doc-rst: kernel-doc directive, fix state machine
reporter) from Marcus Heiser provides a better fix, so this configuration
change is no longer needed.

7 years agodoc-rst: kernel-doc directive, fix state machine reporter
Markus Heiser [Wed, 20 Jul 2016 10:38:58 +0000 (12:38 +0200)]
doc-rst: kernel-doc directive, fix state machine reporter

Add a reporter replacement that assigns the correct source name and line
number to a system message, as recorded in a ViewList.

[1] http://mid.gmane.org/CAKMK7uFMQ2wOp99t-8v06Om78mi9OvRZWuQsFJD55QA20BB3iw@mail.gmail.com

Signed-off-by: Markus Heiser <markus.heiser@darmarIT.de>
Tested-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
7 years agodocs: deprecate kernel-doc-nano-HOWTO.txt
Jonathan Corbet [Wed, 20 Jul 2016 22:43:41 +0000 (16:43 -0600)]
docs: deprecate kernel-doc-nano-HOWTO.txt

Now that the new Sphinx world order is taking over, the information in
kernel-doc-nano-HOWTO.txt is outmoded.  I hate to remove it altogether,
since it's one of those files that people expect to find.  But we can add a
warning and fix all the other pointers to it.

Reminded-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
7 years agodoc/sphinx: Enable keep_warnings
Daniel Vetter [Tue, 19 Jul 2016 11:42:54 +0000 (13:42 +0200)]
doc/sphinx: Enable keep_warnings

Unfortunately warnings generated after parsing in sphinx can end up
with entirely bogus files and line numbers as sources. Strangely for
outright errors this is not a problem. Trying to convert warnings to
errors also doesn't fix it.

The only way to get useful output out of sphinx to be able to root
cause the error seems to be enabling keep_warnings, which inserts
a System Message into the actual output. Not pretty at all, but I
don't really want to fix up core rst/sphinx code, and this gets the job
done meanwhile.

Cc: Markus Heiser <markus.heiser@darmarit.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
7 years ago[media] doc-rst: cec: update documentation
Hans Verkuil [Tue, 19 Jul 2016 09:26:13 +0000 (06:26 -0300)]
[media] doc-rst: cec: update documentation

Update and expand the CEC documentation. Especially w.r.t. non-blocking
mode.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: always check all_device_types and features
Hans Verkuil [Mon, 18 Jul 2016 06:44:10 +0000 (03:44 -0300)]
[media] cec: always check all_device_types and features

Even when the adapter is configured for CEC 1.4, we still check and
use the CEC 2.0 parts of struct cec_log_addrs. Although these aren't
used in CEC messages, the information contained in them is still of
use in the CEC framework itself, so keep this information.

Also zero the unused trailing features[] data and unused logical address
data so the contents isn't random data.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: poll should check if there is room in the tx queue
Hans Verkuil [Sun, 17 Jul 2016 16:02:44 +0000 (13:02 -0300)]
[media] cec: poll should check if there is room in the tx queue

For POLLOUT poll only checked if the adapter was configured, not
if there was room in the transmit queue. Add that check.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] vivid: support monitor all mode
Hans Verkuil [Sat, 16 Jul 2016 13:49:36 +0000 (10:49 -0300)]
[media] vivid: support monitor all mode

Just pass the transmitted CEC message to all CEC adapters.
This implements the Monitor All mode for vivid.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: fix test for unconfigured adapter in main message loop
Hans Verkuil [Sun, 17 Jul 2016 14:42:06 +0000 (11:42 -0300)]
[media] cec: fix test for unconfigured adapter in main message loop

The main message loop checks if the physical address was valid, and if
not it is assumed that the adapter had been unconfigured.

However, this check is no longer correct, instead it should check
that both adap->is_configured and adap->is_configuring are false.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: limit the size of the transmit queue
Hans Verkuil [Sun, 17 Jul 2016 14:40:05 +0000 (11:40 -0300)]
[media] cec: limit the size of the transmit queue

The size of the transmit queue was unlimited, which meant that
in non-blocking mode you could flood the CEC adapter with messages
to be transmitted.

Limit this to 18 messages.

Also print the number of pending transmits and the timeout value
in the status debugfs file.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: zero unused msg part after msg->len
Hans Verkuil [Sun, 17 Jul 2016 08:16:40 +0000 (05:16 -0300)]
[media] cec: zero unused msg part after msg->len

Ensure that the unused part of the msg array is zeroed. This is
required by CEC 2.0 when receiving shorter messages than expected.
In that case the remaining bytes are assumed to be 0.

There are no such CEC messages yet, but it is required to be future proof.

And since we're doing it for received messages, do it for transmitted
messages as well. It's unambiguous this way.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: don't set fh to NULL in CEC_TRANSMIT
Hans Verkuil [Sat, 16 Jul 2016 12:59:18 +0000 (09:59 -0300)]
[media] cec: don't set fh to NULL in CEC_TRANSMIT

The filehandle was set to NULL when in non-blocking mode or when
no reply is needed.

This is wrong: the filehandle is needed in non-blocking mode to ensure
that the result of the transmit can be obtained through CEC_RECEIVE.

And the 'reply' check was also incorrect since it should have checked the
timeout field (the reply can be 0). In any case, when in blocking mode
there is no need to set the fh to NULL either.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: clear all status fields before transmit and always fill in sequence
Hans Verkuil [Sat, 16 Jul 2016 12:44:13 +0000 (09:44 -0300)]
[media] cec: clear all status fields before transmit and always fill in sequence

Before transmitting a message clear all status fields and always fill
in the sequence number. Make sure the sequence number is never 0.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cec: CEC_RECEIVE overwrote the timeout field
Hans Verkuil [Sat, 16 Jul 2016 10:58:31 +0000 (07:58 -0300)]
[media] cec: CEC_RECEIVE overwrote the timeout field

When CEC_RECEIVE returns a message the original timeout field
was overwritten. Restore the timeout field.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: backward compatibility with older Sphinx versions
Mauro Carvalho Chehab [Tue, 19 Jul 2016 15:35:08 +0000 (12:35 -0300)]
[media] doc-rst: backward compatibility with older Sphinx versions

Sphinx is really evil when an older version finds an extra
attribute for the :toctree: tag: it simply ignores everything
and produce documents without any chapter inside!

As we're now using tags available only on Sphinx 1.4.x, we
need to use some creative ways to add a title before the
table of contents. Do that by using a css class.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: better name the media books
Mauro Carvalho Chehab [Mon, 18 Jul 2016 18:01:20 +0000 (15:01 -0300)]
[media] doc-rst: better name the media books

The titles at the media books were misleading, and some books
were not numbered.

Rename the kAPI book to better reflect its contents, be more
consistent on the initial rst file for each book and better
name them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: fix media kAPI documentation
Mauro Carvalho Chehab [Mon, 18 Jul 2016 17:46:07 +0000 (14:46 -0300)]
[media] doc-rst: fix media kAPI documentation

I ended by adding twice each media header, because I saw some
missing stuff at the documents. It seems it was my mistake,
as everything seems to be there.

So, remove those extra stuff, to avoid duplicating the
documentation of the functions.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] get rid of Documentation/video4linux/lifeview.txt
Mauro Carvalho Chehab [Mon, 18 Jul 2016 17:28:58 +0000 (14:28 -0300)]
[media] get rid of Documentation/video4linux/lifeview.txt

Move the contents of this file to bttv.rst and saa7134.rst.

With that, we can finally remove Documentation/video4linux.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx88.rst: add contents of hauppauge-wintv-cx88-ir.txt
Mauro Carvalho Chehab [Mon, 18 Jul 2016 17:18:10 +0000 (14:18 -0300)]
[media] cx88.rst: add contents of hauppauge-wintv-cx88-ir.txt

Import the contents of hauppauge-wintv-cx88-ir.txt, after
converted to ReST into cx88.rst file.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx88.rst: add contents from not-in-cx2388x-datasheet.txt
Mauro Carvalho Chehab [Mon, 18 Jul 2016 17:10:40 +0000 (14:10 -0300)]
[media] cx88.rst: add contents from not-in-cx2388x-datasheet.txt

There are some information about missing/wrong documentation at
cx231xx datasheet. Add it to the cx88 chapter.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx2341x.rst: add contents of README.vbi
Mauro Carvalho Chehab [Mon, 18 Jul 2016 17:07:10 +0000 (14:07 -0300)]
[media] cx2341x.rst: add contents of README.vbi

Finally, adds the content of README.vbi at cx2341x.rst after
its conversion to ReST format.

Now, add information about this chipset and its driver is
inside a single chapter at the media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx2341x: add contents of README.hm12
Mauro Carvalho Chehab [Mon, 18 Jul 2016 17:01:51 +0000 (14:01 -0300)]
[media] cx2341x: add contents of README.hm12

The README.hm12 file describes the proprietary format used
by this driver for raw format, called HM12. Add its description
at the document, after converted to ReST.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx2341x.rst: add contents of fw-osd-api.txt
Mauro Carvalho Chehab [Mon, 18 Jul 2016 16:56:43 +0000 (13:56 -0300)]
[media] cx2341x.rst: add contents of fw-osd-api.txt

Convert it to ReST format and add to cx2341x.rst file.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx2341x.rst: add the contents of fw-upload.txt
Mauro Carvalho Chehab [Mon, 18 Jul 2016 16:45:27 +0000 (13:45 -0300)]
[media] cx2341x.rst: add the contents of fw-upload.txt

Add the contents of fw-upload.txt, after converting it to
ReST format.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx2341x.rst: add contents of fw-memory.txt
Mauro Carvalho Chehab [Mon, 18 Jul 2016 16:42:17 +0000 (13:42 -0300)]
[media] cx2341x.rst: add contents of fw-memory.txt

Convert the content to ReST and add it at the cx231xx.rst
file.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx2341x.rst: add contents of fw-dma.txt
Mauro Carvalho Chehab [Mon, 18 Jul 2016 16:32:53 +0000 (13:32 -0300)]
[media] cx2341x.rst: add contents of fw-dma.txt

Add the contents of fw-dma.txt, converted to ReST, and
drop the old file.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx2341x.rst: add the contents of fw-calling.txt
Mauro Carvalho Chehab [Mon, 18 Jul 2016 16:26:30 +0000 (13:26 -0300)]
[media] cx2341x.rst: add the contents of fw-calling.txt

Convert it to ReST and add its contents at this file.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx2341x.rst: Add the contents of fw-encoder-api.txt
Mauro Carvalho Chehab [Mon, 18 Jul 2016 15:48:36 +0000 (12:48 -0300)]
[media] cx2341x.rst: Add the contents of fw-encoder-api.txt

Convert its contents to ReST and add to cx2341x.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx2341x.rst: add fw-decoder-registers.txt content
Mauro Carvalho Chehab [Mon, 18 Jul 2016 14:08:24 +0000 (11:08 -0300)]
[media] cx2341x.rst: add fw-decoder-registers.txt content

Convert the contents of fw-decoder-registers.txt to ReST and
add it to cx2341x.rst file.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years agoDocumentation: add watermark_scale_factor to the list of vm systcl file
Jerome Marchand [Tue, 12 Jul 2016 10:05:59 +0000 (12:05 +0200)]
Documentation: add watermark_scale_factor to the list of vm systcl file

Commit 795ae7a0de6b ("mm: scale kswapd watermarks in proportion to
memory") properly added the description of the new knob to
Documentation/sysctl/vm.txt, but forgot to add it to the list of files
in /proc/sys/vm. Let's fix that.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
7 years ago[media] doc-rst: start adding documentation for cx2341x
Mauro Carvalho Chehab [Mon, 18 Jul 2016 14:03:54 +0000 (11:03 -0300)]
[media] doc-rst: start adding documentation for cx2341x

move the contents of fw-decoder-api.txt to cx2341x and
convert it to ReST file, adding it to media/v4l-drivers

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for tuners
Mauro Carvalho Chehab [Mon, 18 Jul 2016 13:38:35 +0000 (10:38 -0300)]
[media] doc-rst: add documentation for tuners

Convert bttv/Tuners to ReST and add it to the media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for bttv driver
Mauro Carvalho Chehab [Mon, 18 Jul 2016 13:30:59 +0000 (10:30 -0300)]
[media] doc-rst: add documentation for bttv driver

Convert it to ReST and add it to media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: move bttv documentation to bttv.rst file
Mauro Carvalho Chehab [Mon, 18 Jul 2016 13:04:48 +0000 (10:04 -0300)]
[media] doc-rst: move bttv documentation to bttv.rst file

There were several files under Documentation/video4linux/bttv.

Instead of simply copying them to the rst folder, I opted to
merge into a single document and adjust the headers to
adjust the section levels and fix the cards tables.

There are two exceptions on the merge:

- The Tuners were renamed as a separate document, as they
  describe a separate driver;

- I removed the PROBLEMS section. It describes problems with
  the very first generation of 3D boards (Mistique/S3).
  It sounds very unlikely that someone would still need to
  install a bttv board on such hardware. Also, it is not
  very well written, IMHO.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years agokernel-doc: Fix up warning output
Daniel Vetter [Fri, 15 Jul 2016 08:19:30 +0000 (10:19 +0200)]
kernel-doc: Fix up warning output

While trying to make gpu docs warning free I stumbled over one output
which wasn't following proper compiler error output standards. Fix it
up for more quickfix awesomeness.

Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
7 years ago[media] v4l-with-ir.rst: update it to reflect the current status
Mauro Carvalho Chehab [Mon, 18 Jul 2016 01:34:51 +0000 (22:34 -0300)]
[media] v4l-with-ir.rst: update it to reflect the current status

This document were really old. Update it to reflect the current
status of the IR drivers for TV.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation about IR on V4L boards
Mauro Carvalho Chehab [Mon, 18 Jul 2016 01:11:47 +0000 (22:11 -0300)]
[media] doc-rst: add documentation about IR on V4L boards

This section is outdated, but let's add it, after converting
to ReST, and then fix it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add vivid documentation
Mauro Carvalho Chehab [Mon, 18 Jul 2016 01:07:30 +0000 (22:07 -0300)]
[media] doc-rst: add vivid documentation

Convert it to ReST and add to media/v4l-drivers book.

As the sections here (and on other docs) are numbered,
let's also make this book auto-numbered.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for Zoran driver
Mauro Carvalho Chehab [Mon, 18 Jul 2016 00:29:09 +0000 (21:29 -0300)]
[media] doc-rst: add documentation for Zoran driver

Convert it to ReST and add to media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for uvcvideo
Mauro Carvalho Chehab [Sun, 17 Jul 2016 23:50:45 +0000 (20:50 -0300)]
[media] doc-rst: add documentation for uvcvideo

Convert it to ReST and add to media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add soc-camera documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 23:44:13 +0000 (20:44 -0300)]
[media] doc-rst: add soc-camera documentation

Convert it to ReST format and add it at media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for si476x
Mauro Carvalho Chehab [Sun, 17 Jul 2016 23:32:28 +0000 (20:32 -0300)]
[media] doc-rst: add documentation for si476x

Convert it to ReST and add to media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for si4713
Mauro Carvalho Chehab [Sun, 17 Jul 2016 23:07:16 +0000 (20:07 -0300)]
[media] doc-rst: add documentation for si4713

Convert it to ReST and add it to the media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for si470x
Mauro Carvalho Chehab [Sun, 17 Jul 2016 22:52:48 +0000 (19:52 -0300)]
[media] doc-rst: add documentation for si470x

Convert it to ReST and add to media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add sh_mobile_ceu_camera crop documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 22:43:22 +0000 (19:43 -0300)]
[media] doc-rst: add sh_mobile_ceu_camera crop documentation

Convert it to ReST and add it to media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for saa7134
Mauro Carvalho Chehab [Sun, 17 Jul 2016 22:26:43 +0000 (19:26 -0300)]
[media] doc-rst: add documentation for saa7134

Convert it to ReST and add to the media/v4l-device book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for radiotrack
Mauro Carvalho Chehab [Sun, 17 Jul 2016 22:03:53 +0000 (19:03 -0300)]
[media] doc-rst: add documentation for radiotrack

Convert it to ReST and add it to the media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add pxa_camera documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 21:52:53 +0000 (18:52 -0300)]
[media] doc-rst: add pxa_camera documentation

Convert pxa_camera to ReST format and add it to the
media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for pvrusb2
Mauro Carvalho Chehab [Sun, 17 Jul 2016 21:45:25 +0000 (18:45 -0300)]
[media] doc-rst: add documentation for pvrusb2

Convert pvrusb2 documentation to ReST file and removed the note
about an html version of the documentation, as it is not
shipped inside the Kernel.

Add it to media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add omap4_camera documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 21:38:01 +0000 (18:38 -0300)]
[media] doc-rst: add omap4_camera documentation

Convert the omap4_camera documentation to ReST and add it to
the media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add omap3isp documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 21:31:51 +0000 (18:31 -0300)]
[media] doc-rst: add omap3isp documentation

Convert omap3isp documentation to ReST and add it to the
media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add meye documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 21:20:51 +0000 (18:20 -0300)]
[media] doc-rst: add meye documentation

Convert the meye documentation to rst and add it to the
media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Add ivtv documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 21:13:46 +0000 (18:13 -0300)]
[media] doc-rst: Add ivtv documentation

Convert ivtv documentation to rst, update the links there
and add to media/v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for fimc driver
Mauro Carvalho Chehab [Sun, 17 Jul 2016 20:57:31 +0000 (17:57 -0300)]
[media] doc-rst: add documentation for fimc driver

Convert the document to rst and add it to the v4l-drivers
book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add davinci-vpbe documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 20:49:05 +0000 (17:49 -0300)]
[media] doc-rst: add davinci-vpbe documentation

Convert it to rst format and add it to the v4l-drivers book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cx88.rst: Update the documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 20:44:45 +0000 (17:44 -0300)]
[media] cx88.rst: Update the documentation

This doc is outdated, and contains information that it is not
true anymore. Update it to reflect the changes that this
driver suffered since I started working on it.

While here, also update Gerd's name.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Add cx88 documentation to media book
Mauro Carvalho Chehab [Sun, 17 Jul 2016 20:28:40 +0000 (17:28 -0300)]
[media] doc-rst: Add cx88 documentation to media book

Convert the cx88 documentation to rst and add it to the v4l-devices
book

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add documentation for cpia2 driver
Mauro Carvalho Chehab [Sun, 17 Jul 2016 20:20:26 +0000 (17:20 -0300)]
[media] doc-rst: add documentation for cpia2 driver

Convert the documentation to rst, merge the two files and
add to the index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add Zoran zr364xx documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 20:05:20 +0000 (17:05 -0300)]
[media] doc-rst: add Zoran zr364xx documentation

Convert the documentation to rst and add it to the book.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add gspca cardlist
Mauro Carvalho Chehab [Sun, 17 Jul 2016 19:45:05 +0000 (16:45 -0300)]
[media] doc-rst: add gspca cardlist

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: convert cafe_ccic file to rst format
Mauro Carvalho Chehab [Sun, 17 Jul 2016 19:32:50 +0000 (16:32 -0300)]
[media] doc-rst: convert cafe_ccic file to rst format

This file is almost ok, but it needs chapter/sections
and a code-block.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: convert fourcc to rst format
Mauro Carvalho Chehab [Sun, 17 Jul 2016 19:32:38 +0000 (16:32 -0300)]
[media] doc-rst: convert fourcc to rst format

Fix fourcc for it to be correcly parsed by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Move v4l docs to media/v4l-drivers
Mauro Carvalho Chehab [Sun, 17 Jul 2016 19:03:31 +0000 (16:03 -0300)]
[media] doc-rst: Move v4l docs to media/v4l-drivers

Move V4L documentation files to media/v4l-drivers. Those aren't
core stuff, so they don't fit at the kAPI document.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years agodocs: Get rid of some kernel-documentation warnings
Jonathan Corbet [Mon, 18 Jul 2016 01:24:02 +0000 (19:24 -0600)]
docs: Get rid of some kernel-documentation warnings

Sphinx wants to interpret all literal blocks as being in the chosen
language and complains when an attempt to parse a block fails.
kernel-documentation.rst has a few blocks that are not in C; make that
explicit to shut down the associated warnings.

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
7 years agodoc-rst: add v4l-drivers to index file
Mauro Carvalho Chehab [Sun, 17 Jul 2016 19:00:30 +0000 (16:00 -0300)]
doc-rst: add v4l-drivers to index file

Adds documentation for V4L drivers.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Convert videobuf documentation to ReST
Mauro Carvalho Chehab [Sun, 17 Jul 2016 18:58:51 +0000 (15:58 -0300)]
[media] doc-rst: Convert videobuf documentation to ReST

The videobuf documentation is almost at rst format: we
just needed to add titles and add some code-blocks there
and that's it.

Also, add a notice that this framework is deprecated.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: move videobuf documentation to media/kapi
Mauro Carvalho Chehab [Sun, 17 Jul 2016 18:49:56 +0000 (15:49 -0300)]
[media] doc-rst: move videobuf documentation to media/kapi

This document describes a kapi framework. Move it to the right
place.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: do a poor man's conversion of v4l2-framework
Mauro Carvalho Chehab [Sun, 17 Jul 2016 18:25:27 +0000 (15:25 -0300)]
[media] doc-rst: do a poor man's conversion of v4l2-framework

Make Sphinx happy with v4l2-framework.rst by putting all C
code inside code-block.

Please note that this is a poor man ReST conversion, as several
of those blocks should actually be converted to use :cpp:func:,
pointing to the kAPI auto-generated documentation.

The problem is that we currently lack kernel-doc documentation
for most of the stuff described there.

So, let's do a poor man's conversion. We should later address
this.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: move framework docs to kAPI documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 18:19:48 +0000 (15:19 -0300)]
[media] doc-rst: move framework docs to kAPI documentation

Those documentation are part of the kAPI one. Move to the right
place.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Remove deprecated API.html document
Mauro Carvalho Chehab [Sun, 17 Jul 2016 18:04:19 +0000 (15:04 -0300)]
[media] doc-rst: Remove deprecated API.html document

This document points to some old stuff. Just remove it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: move cardlists to media/v4l-drivers
Mauro Carvalho Chehab [Sun, 17 Jul 2016 17:13:28 +0000 (14:13 -0300)]
[media] doc-rst: move cardlists to media/v4l-drivers

Convert the cardlists to ReST format and move them to
Documentation/media/v4l-drivers/

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] extract_xc3028.pl: move it to scripts/dir
Mauro Carvalho Chehab [Sun, 17 Jul 2016 17:08:12 +0000 (14:08 -0300)]
[media] extract_xc3028.pl: move it to scripts/dir

This doesn't belong at documentation. Move it to scripts.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] add DVB documentation to Sphinx
Mauro Carvalho Chehab [Sun, 17 Jul 2016 16:58:36 +0000 (13:58 -0300)]
[media] add DVB documentation to Sphinx

Now that all DVB files got converted, add it to Sphinx
build.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: convert udev chapter to rst
Mauro Carvalho Chehab [Sun, 17 Jul 2016 16:57:24 +0000 (13:57 -0300)]
[media] doc-rst: convert udev chapter to rst

This chapter is outdated. I almost removed, but, as we're lacking
documentation about how to make DVB devices persistent, I opted,
instead, to keep it, and add a note about that.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: convert ttusb-dev to rst
Mauro Carvalho Chehab [Sun, 17 Jul 2016 16:49:09 +0000 (13:49 -0300)]
[media] doc-rst: convert ttusb-dev to rst

There are some things that needed to be done to convert
it to ReST. Also, there are some obsolete info there
related to Kernels 2.4 and 2.6. Update them.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Convert technisat document to ReST
Mauro Carvalho Chehab [Sun, 17 Jul 2016 16:43:54 +0000 (13:43 -0300)]
[media] doc-rst: Convert technisat document to ReST

This document need some changes to be properly parsed by
Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: add opera-firmware.rst to DVB docs
Mauro Carvalho Chehab [Sun, 17 Jul 2016 16:34:01 +0000 (13:34 -0300)]
[media] doc-rst: add opera-firmware.rst to DVB docs

This file is shown OK with ReST. Yet, as we changed the
place where the get_dvb_firmware script is, we need to
update it.

While here, move the author's name to the beginning of the
file.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Convert lmedm04 to rst format
Mauro Carvalho Chehab [Sun, 17 Jul 2016 16:30:21 +0000 (13:30 -0300)]
[media] doc-rst: Convert lmedm04 to rst format

This file was missing a name for the index, and weren't
using any markup language. Make it looks better and
convert to ReST.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: convert DVB FAQ to ReST format
Mauro Carvalho Chehab [Sun, 17 Jul 2016 16:21:49 +0000 (13:21 -0300)]
[media] doc-rst: convert DVB FAQ to ReST format

Convert the DVB FAQ to ReST format and add a note that this is
outdated.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Convert dvb-usb to ReST format
Mauro Carvalho Chehab [Sun, 17 Jul 2016 16:17:41 +0000 (13:17 -0300)]
[media] doc-rst: Convert dvb-usb to ReST format

This file is not on any markup language. Convert it to
ReST format.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Convert contributors list to ReST
Mauro Carvalho Chehab [Sun, 17 Jul 2016 15:59:35 +0000 (12:59 -0300)]
[media] doc-rst: Convert contributors list to ReST

The contributors list needs some adjustments to be properly
formatted.

Also, this list has not been updated for a while. So, add a
notice about that.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Convert ci.txt to a rst file
Mauro Carvalho Chehab [Sun, 17 Jul 2016 15:48:43 +0000 (12:48 -0300)]
[media] doc-rst: Convert ci.txt to a rst file

The old ci.txt file had a very peculiar format, with doesn't
match any markup language I know. Change it to be on ReST
format, for it to be parsed by Sphinx.

Also, as this is an old document, add a note about it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: convert cards to rst format
Mauro Carvalho Chehab [Sun, 17 Jul 2016 15:33:31 +0000 (12:33 -0300)]
[media] doc-rst: convert cards to rst format

This file is using a markup-like language, but it is not quite
ReST. Convert it, and add a note pointing to the Wiki page with
the known supported hardware devices.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: convert bt8xx doc to rst
Mauro Carvalho Chehab [Sun, 17 Jul 2016 15:25:43 +0000 (12:25 -0300)]
[media] doc-rst: convert bt8xx doc to rst

This document almost follows a markup language, but it is
not ReST. Fix it to be handled by Sphinx.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Fix format of avermedia.rst
Mauro Carvalho Chehab [Sun, 17 Jul 2016 15:13:21 +0000 (12:13 -0300)]
[media] doc-rst: Fix format of avermedia.rst

This file is almost at the ReST format, but some things need
to be fixed for it to be parsed.

Also, the documentation there is old. So, add a notice about
that.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: move DVB introduction to a separate file
Mauro Carvalho Chehab [Sun, 17 Jul 2016 15:05:21 +0000 (12:05 -0300)]
[media] doc-rst: move DVB introduction to a separate file

Instead of keeping the introduction together with the
index, move it to a separate file, and add it via toctree
at the index.

The information there are outdated, so update it to point
to the right links.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: move DVB avulse docs to Documentation/media
Mauro Carvalho Chehab [Sun, 17 Jul 2016 14:34:58 +0000 (11:34 -0300)]
[media] doc-rst: move DVB avulse docs to Documentation/media

There are several documentation stuff under Documentation/dvb.

Move them to Documentation/media/dvb-drivers and rename them to
rst, as they'll soon be converted to rst files.

No changes at the documentation.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Fix conversion for dvb-core.rst
Mauro Carvalho Chehab [Sun, 17 Jul 2016 14:25:37 +0000 (11:25 -0300)]
[media] doc-rst: Fix conversion for dvb-core.rst

The conversion from DocBook required some fixes:

- Now, the C files with the exported symbols also need to be
  added. So, all headers need to be included twice: one to
  get the structs/enums/.. and another one for the functions;

- Notes should use the ReST tag, as kernel-doc doesn't
  recognizes it anymore;

- Identation needs to be fixed, as ReST uses it to identify
  when a format "tag" ends.

- Fix the cross-references at the media controller description.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Fix conversion for MC core functions
Mauro Carvalho Chehab [Sun, 17 Jul 2016 12:18:03 +0000 (09:18 -0300)]
[media] doc-rst: Fix conversion for MC core functions

There were lots of issues at the media controller side,
after the conversion:

- Some documentation at the header files weren't using the
  kernel-doc start block;

- Now, the C files with the exported symbols also need to be
  added. So, all headers need to be included twice: one to
  get the structs/enums/.. and another one for the functions;

- Notes should use the ReST tag, as kernel-doc doesn't
  recognizes it anymore;

- Identation needs to be fixed, as ReST uses it to identify
  when a format "tag" ends.

- Fix the cross-references at the media controller description.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Fix conversion for v4l2 core functions
Mauro Carvalho Chehab [Sun, 17 Jul 2016 11:44:08 +0000 (08:44 -0300)]
[media] doc-rst: Fix conversion for v4l2 core functions

The conversion from DocBook lead into some conversion issues,
basically due to the lack of proper support at kernel-doc.

So, address them:

- Now, the C files with the exported symbols also need to be
  added. So, all headers need to be included twice: one to
  get the structs/enums/.. and another one for the functions;

- Notes should use the ReST tag, as kernel-doc doesn't
  recognizes it anymore;

- Identation needs to be fixed, as ReST uses it to identify
  when a format "tag" ends.

- kernel-doc doesn't escape things like *pointer, so we
  need to manually add a escape char before it.

- On some cases, kernel-doc conversion requires violating
  the 80-cols, as otherwise it won't properly parse the
  source code.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Fix issues with RC documentation
Mauro Carvalho Chehab [Sun, 17 Jul 2016 12:16:57 +0000 (09:16 -0300)]
[media] doc-rst: Fix issues with RC documentation

The kernel-doc script is now broken if it doesn't find all
exported symbols documented.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: split media_drivers.rst into one file per API type
Mauro Carvalho Chehab [Sun, 17 Jul 2016 11:22:23 +0000 (08:22 -0300)]
[media] doc-rst: split media_drivers.rst into one file per API type

Just like the uAPI book is split into parts, let's split the
kAPI documentation. That should make easier to maintain, and
will split the final documentation into smaller html files.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: media_drivers.rst: Fix paragraph headers for MC
Mauro Carvalho Chehab [Sun, 17 Jul 2016 11:15:08 +0000 (08:15 -0300)]
[media] doc-rst: media_drivers.rst: Fix paragraph headers for MC

Fix the paragraph identation for the media controller
headers.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] doc-rst: Convert media API to rst
Mauro Carvalho Chehab [Sun, 17 Jul 2016 10:20:06 +0000 (07:20 -0300)]
[media] doc-rst: Convert media API to rst

Move the contents of the media section at
DocBooks/DocBook/device-drivers.tmpl to a new ReST book.

For now, the contents is kept as-is. Next patches will fix
the warnings and add cross-references that were removed due to
the conversion.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cxd2841er: Reading SNR for DVB-C added
Abylay Ospan [Fri, 15 Jul 2016 20:04:17 +0000 (17:04 -0300)]
[media] cxd2841er: Reading SNR for DVB-C added

Now driver returns correct values for DVB-C:
 SNR (in dB)

[mchehab@s-opensource.com: fix a new function to be static]
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cxd2841er: Reading BER and UCB for DVB-C added
Abylay Ospan [Fri, 15 Jul 2016 18:34:22 +0000 (15:34 -0300)]
[media] cxd2841er: Reading BER and UCB for DVB-C added

now driver returns correct values for DVB-C:
 BER (post_bit_count and post_bit_error values)
 UCB (count of uncorrected errors)
also, some code cleanup was done - checkpatch.pl now is happy

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
7 years ago[media] cxd2841er: fix switch-case for DVB-C
Abylay Ospan [Fri, 15 Jul 2016 17:59:37 +0000 (14:59 -0300)]
[media] cxd2841er: fix switch-case for DVB-C

DVB-C should use cxd2841er_read_agc_gain_c() to get the gain. The same
function is used for all DVB-C annex delivery systems.

Signed-off-by: Abylay Ospan <aospan@netup.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>