Commit 25614824 ("[media] tc358743: support probe from device tree")
specified in the device tree binding documentation that the reset gpio
is optional. Make the implementation match accordingly.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Commit 25614824 ("[media] tc358743: support probe from device tree")
failed to explicitly set the direction of the reset gpio. Use the
optional flag of devm_gpiod_get to make up leeway.

This is also necessary because the flag parameter will become mandatory
soon.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

Document the most relevant functions and data structs for
developers that are working with the DVB subsystem.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

That struct is used on every DVB Front End driver, as it
contains what's needed to register/use a frontend at the
Kernel.

Document it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Most of the parameters here are already well defined at
the userspace documentation. Yet, it is good to add some
documentation, for the developers to be sure that they
are the same as the ones at userspace API.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

This is one of the most important functions of the DVB
frontend, containing the logic needed to set the parameters
at the demux and to send commands via SEC.

Document it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

The dvb_frontend.c core defines a FE_ALGO_HW symbol that it is
never used. Also, both cx24123 returns 1 to get_algo() callback
instead of using DVBFE_ALGO_HW.

Probably, those are some left overs from some code cleanup.

Let's stop returning magic numbers and use the proper macro
value.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Add documentation for struct analog_demod_info and
struct analog_demod_ops.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

The struct dvb_tuner_ops contains lots of callbacks used
by tuners. Document them.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

That struct inside dvb-frontend.h stores some parameters
from V4L2 API (videodev2.h), in order to be used by the
hybrid analog/digital TV tuners.

Document it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

This enum is not used anymore, as drivers use the
modulation definitions from the public API. It is probably
a left over from some DVB core cleanup.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Despite being used everywhere at DVB frontends, the
struct dvb_tuner_info were never documented.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Add Documentation for dvb_frontend_tune_settings struct.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Instead of putting all media devices on a flat structure,
split them on 4 types, just like we do with the userspace API:
	Video2Linux devices
	Digital TV (DVB) devices
	Remote Controller devices
	Media Controller devices
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Fix the format of the comments and add to DocBook.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

The comment metadata was wrong:

Warning(.//include/media/videobuf2-memops.h:25): cannot understand function prototype: 'struct vb2_vmarea_handler '
Warning(.//include/media/videobuf2-memops.h): no structured comments found

Fix and add to DocBook.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Most of the stuff at videobuf2-core are ok for adding it to
DocBook.

Two notes here:
1) As videobuf2-core will be soon be changed, better to
   not spend too much efforts right now, as things will
   change soon;

2) struct vb2_queue has a number of private elements that are
   documented. As Kernel nano documentation format handles
   "private:" arguments, we need to put them on a separate
   comment block or to remove. Keeping the comments is
   obviously better ;)
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

There are already markups for documentation at v4l-dv-timings.h,
however, they're not properly formatted.

Convert them to the right format and add this file to
the device-drivers DocBook.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

The comments there are good enough for DocBook, however they're
using a wrong format. Fix and add to device-drivers.xml.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/v4l2-ctrls.h:217): No description found for parameter 'p_new'
Warning(.//include/media/v4l2-ctrls.h:217): No description found for parameter 'p_cur'
Warning(.//include/media/v4l2-ctrls.h:217): Excess struct/union/enum/typedef member 'val64' description in 'v4l2_ctrl'
Warning(.//include/media/v4l2-ctrls.h:314): No description found for parameter 'qmenu_int'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

This is an obsolete function that has several missing
arguments:
	Warning(.//include/media/v4l2-ctrls.h:340): No description found for parameter 'id'
	Warning(.//include/media/v4l2-ctrls.h:340): No description found for parameter 'name'
	Warning(.//include/media/v4l2-ctrls.h:340): No description found for parameter 'type'
	Warning(.//include/media/v4l2-ctrls.h:340): No description found for parameter 'min'
	Warning(.//include/media/v4l2-ctrls.h:340): No description found for parameter 'max'
	Warning(.//include/media/v4l2-ctrls.h:340): No description found for parameter 'step'
	Warning(.//include/media/v4l2-ctrls.h:340): No description found for parameter 'def'
	Warning(.//include/media/v4l2-ctrls.h:340): No description found for parameter 'flags'

However, this is an obsolete function that should be
removed soon. And are not meant to be used anymore. So,
instead of documenting those stuff, let's just make
DocBook to not handle it, by replacing "/**" by "/*".
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

The comments there are using a wrong format. Due to that,
DocBook were unable to parse it.

Fix the tags format, and add it to device-drivers.xml.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

There are already some comments at dvb_ringbuffer.h that are ready
for DocBook, although not properly formatted.

Convert them, fix some issues and add this file to
the device-drivers DocBook.

While here, put multi-line comments on the right format.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

There are already some comments at dvb_math.h that are ready
for DocBook, although not properly formatted.

Convert them, fix some issues and add this file to
the device-drivers DocBook.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

There are already some comments at dvb_frontend.h that are ready
for DocBook, although not properly formatted.

Convert them, and add this file to the device-drivers DocBook.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

There are already some tags at dvb_ca_en50221.h, but using a
different format. Convert them, fix a few entries and add
to the device-drivers DocBook.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/v4l2-subdev.h:203): No description found for parameter 'ioctl'
Warning(.//include/media/v4l2-subdev.h:203): No description found for parameter 'compat_ioctl32'
Warning(.//include/media/v4l2-subdev.h:203): No description found for parameter 'subscribe_event'
Warning(.//include/media/v4l2-subdev.h:203): No description found for parameter 'unsubscribe_event'
Warning(.//include/media/v4l2-subdev.h:273): No description found for parameter 's_stream'
Warning(.//include/media/v4l2-subdev.h:407): No description found for parameter 's_stream'
Warning(.//include/media/v4l2-subdev.h:623): No description found for parameter 'link_validate'
Warning(.//include/media/v4l2-subdev.h:623): No description found for parameter 'set_frame_desc'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Fixes the following warnings:

Warning(.//include/media/v4l2-subdev.h:445): No description found for parameter 'g_sliced_vbi_cap'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'enum_mbus_code'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'enum_frame_size'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'enum_frame_interval'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'get_fmt'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'set_fmt'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'get_selection'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'set_selection'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'get_edid'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'set_edid'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'dv_timings_cap'
Warning(.//include/media/v4l2-subdev.h:589): No description found for parameter 'enum_dv_timings'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 'g_std'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 's_std'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 'querystd'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 'cropcap'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 'g_crop'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 's_crop'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 'g_parm'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 's_parm'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 'g_frame_interval'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 's_frame_interval'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 's_dv_timings'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 'g_dv_timings'
Warning(.//include/media/v4l2-subdev.h:381): No description found for parameter 'query_dv_timings'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

The comments for struct v4l2_subdev_video_ops are out of the
order as the parameter would appear at struct. This is not
a problem for DocBook, but humans find harder to mentally
reorder ;)

So, put them at the right order. That makes easier to check
what's missing, and to put the comments in the right place.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/v4l2-subdev.h:224): No description found for parameter 's_radio'
Warning(.//include/media/v4l2-subdev.h:224): No description found for parameter 's_frequency'
Warning(.//include/media/v4l2-subdev.h:224): No description found for parameter 'enum_freq_bands'
Warning(.//include/media/v4l2-subdev.h:224): No description found for parameter 'g_tuner'
Warning(.//include/media/v4l2-subdev.h:224): No description found for parameter 'g_modulator'
Warning(.//include/media/v4l2-subdev.h:224): No description found for parameter 's_modulator'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/v4l2-subdev.h:183): No description found for parameter 'queryctrl'
Warning(.//include/media/v4l2-subdev.h:183): No description found for parameter 'g_ctrl'
Warning(.//include/media/v4l2-subdev.h:183): No description found for parameter 's_ctrl'
Warning(.//include/media/v4l2-subdev.h:183): No description found for parameter 'g_ext_ctrls'
Warning(.//include/media/v4l2-subdev.h:183): No description found for parameter 's_ext_ctrls'
Warning(.//include/media/v4l2-subdev.h:183): No description found for parameter 'try_ext_ctrls'
Warning(.//include/media/v4l2-subdev.h:183): No description found for parameter 'querymenu'
Warning(.//include/media/v4l2-subdev.h:183): No description found for parameter 'g_register'
Warning(.//include/media/v4l2-subdev.h:183): No description found for parameter 's_register'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

struct v4l2_subdev_core_ops has some kernel-doc-nano documentation
using a wrong format, with affects the number of stuff reported at
the DocBook device-drivers.xml.

Properly mark the such comment blocks using the right notation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/v4l2-mem2mem.h:50): No description found for parameter 'lock'
Warning(.//include/media/v4l2-mem2mem.h:50): No description found for parameter 'unlock'
Warning(.//include/media/v4l2-mem2mem.h:167): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:177): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:188): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:197): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:206): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:215): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:226): No description found for parameter 'm2m_ctx'
Warning(.//include/media/v4l2-mem2mem.h:235): No description found for parameter 'm2m_ctx'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/v4l2-flash-led-class.h:51): bad line: 				unique in the system
Warning(.//include/media/v4l2-flash-led-class.h:56): bad line: 				definitions are available in the header file
Warning(.//include/media/v4l2-flash-led-class.h:57): bad line: 				<linux/led-class-flash.h>
Warning(.//include/media/v4l2-flash-led-class.h:122): No description found for parameter 'ops'
Warning(.//include/media/v4l2-flash-led-class.h:122): Excess function parameter 'flash_ops' description in 'v4l2_flash_init'
Warning(.//include/media/v4l2-flash-led-class.h:130): No description found for parameter 'v4l2_flash'
Warning(.//include/media/v4l2-flash-led-class.h:130): Excess function parameter 'flash' description in 'v4l2_flash_release'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/rc-core.h:178): No description found for parameter 's_rx_carrier_range'
Warning(.//include/media/rc-core.h:178): Excess struct/union/enum/typedef member 's_rx_carrier' description in 'rc_dev'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/v4l2-async.h:62): No description found for parameter 'match_type'
Warning(.//include/media/v4l2-async.h:62): Excess struct/union/enum/typedef member 'bus_type' description in 'v4l2_async_subdev'
Warning(.//include/media/v4l2-async.h:76): cannot understand function prototype: 'struct v4l2_async_notifier '
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

If make is called twice like that:
	make V=1 DOCBOOKS=device-drivers.xml htmldocs

Make will fail with:

	make -f ./scripts/Makefile.build obj=scripts/basic
	rm -f .tmp_quiet_recordmcount
	make -f ./scripts/Makefile.build obj=scripts build_docproc
	make -f ./scripts/Makefile.build obj=Documentation/DocBook htmldocs
	rm -rf Documentation/DocBook/index.html; echo '<h1>Linux Kernel HTML Documentation</h1>' >> Documentation/DocBook/index.html && echo '<h2>Kernel Version: 4.2.0-rc2</h2>' >> Documentation/DocBook/index.html && cat Documentation/DocBook/device-drivers.html >> Documentation/DocBook/index.html
	cp ./Documentation/DocBook//bayer.png ./Documentation/DocBook//constraints.png ./Documentation/DocBook//crop.gif ./Documentation/DocBook//dvbstb.png ./Documentation/DocBook//fieldseq_bt.gif ./Documentation/DocBook//fieldseq_tb.gif ./Documentation/DocBook//nv12mt.gif ./Documentation/DocBook//nv12mt_example.gif ./Documentation/DocBook//pipeline.png ./Documentation/DocBook//selection.png ./Documentation/DocBook//vbi_525.gif ./Documentation/DocBook//vbi_625.gif ./Documentation/DocBook//vbi_hsync.gif ./Documentation/DocBook/media/*.svg ./Documentation/DocBook/media/v4l/*.svg ./Documentation/DocBook//media_api
	cp: target './Documentation/DocBook//media_api' is not a directory
	Documentation/DocBook/Makefile:53: recipe for target 'htmldocs' failed
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

Warning(.//include/media/media-devnode.h:80): No description found for parameter 'fops'
Warning(.//include/media/media-devnode.h:80): No description found for parameter 'dev'
Warning(.//include/media/media-devnode.h:80): No description found for parameter 'cdev'
Warning(.//include/media/media-devnode.h:80): No description found for parameter 'release'
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>

There are lots of docbook marks at the media subsystem, but
those aren't used.

Add the core headers/code in order to start generating docs.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>