Kernel source files need not include <linux/kconfig.h> explicitly
because the top Makefile forces to include it with:

  -include $(srctree)/include/linux/kconfig.h

This commit removes explicit includes except the following:

  * arch/s390/include/asm/facilities_src.h
  * tools/testing/radix-tree/linux/kernel.h

These two are used for host programs.

Link: http://lkml.kernel.org/r/1473656164-11929-1-git-send-email-yamada.masahiro@socionext.comSigned-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

In the media drivers, the v4l2 core knows about all submodules
and calls into them from a common function. However this cannot
work if the modules that get called are loadable and the
core is built-in. In that case we get

drivers/built-in.o: In function `set_type':
drivers/media/v4l2-core/tuner-core.c:301: undefined reference to `tea5767_attach'
drivers/media/v4l2-core/tuner-core.c:307: undefined reference to `tea5761_attach'
drivers/media/v4l2-core/tuner-core.c:349: undefined reference to `tda9887_attach'
drivers/media/v4l2-core/tuner-core.c:405: undefined reference to `xc4000_attach'

This was working previously, until the IS_ENABLED() macro was used
to replace the construct like

 #if defined(CONFIG_DVB_CX24110) || (defined(CONFIG_DVB_CX24110_MODULE) && defined(MODULE))

with the difference that the new code no longer checks whether it is being
built as a loadable module itself.

To fix this, this new patch adds an 'IS_REACHABLE' macro, which evaluates
true in exactly the condition that was used previously. The downside
of this is that this trades an obvious link error for a more subtle
runtime failure, but it is clear that the change that introduced the
link error was unintentional and it seems better to revert it for
now. Also, a similar change was originally created by Trent Piepho
and then reverted by teh change to the IS_ENABLED macro.

Ideally Kconfig would be used to avoid the case of a broken dependency,
or the code restructured in a way to turn around the dependency, but either
way would require much larger changes here.

Fixes: 7b34be71 ("[media] use IS_ENABLED() macro")
See-also: c5dec9fb ("V4L/DVB (4751): Fix DBV_FE_CUSTOMISE for card drivers compiled into kernel")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>

The option to load firmware asynchronously were added due to
a requirement with a few versions of udev. It turns that this was
a bad idea and caused regressions on drxk-based devices.

So, we end by only letting the firmware to be loaded syncronously
everywhere.

So, let's remove the bad code.

This patch partially reverts the changeset 8e30783b.
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>

X-Patchwork-Delegate: mchehab@redhat.com
Thare are lots of CamelCase warnings produced by checkpatch.pl.
This weren't fixed at the time the driver got submitted due
to the lack of manpower do to such cleanup.
Now that I have one script that automates this task, cleans
it. That makes the driver almost checkpatch-compliant,
except for 80 column warnings.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Instead of checking everywhere there for 3 symbols, use instead
IS_ENABLED macro.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Due to udev-182, the firmware load was changed to be async, as
otherwise udev would give up of loading a firmware.

Add an option to return to the previous behaviour, async firmware
loads cause failures with the tda18271 driver.

Antti tested it with the following hardware:
        Hauppauge WinTV HVR 930C
        MaxMedia UB425-TC
        PCTV QuatroStick nano (520e)
Tested-by: NAntti Palosaari <crope@iki.fi>
Cc: stable@kernel.org #	for Kernel 3.6 - please note that driver location has changed
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Raise the DVB frontends one level up, as the intention is to remove
the drivers/media/dvb directory.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Currently there are two different implementations (in the firmware) for
the QAM demodulator command: one takes 4 and the other takes 2
parameters. The driver shows an error in dmesg When using the
4-parameter command with firmware that implements the 2-parameter
command. Unfortunately this happens every time when chaning the
frequency (on DVB-C).

This patch simply makes configurable, how many command parameters will
be used. All existing drxk_config instances using the "drxk_a3.mc" were
updated because this firmware is the only loadable firmware where the
QAM demodulator command takes 4 parameters. Some firmwares in the ROM
might also use it. The drxk instances in the em28xx-dvb driver were also
updated to silence the warnings.

If no qam_demod_parameter_count is given in the drxk_config struct, then
the correct number of parameters will be auto-detected.

[mchehab@redhat.com: Fix a small CodingStyle issue at one comment]
Signed-off-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Those two settings are different when used with az6007. Add
a config option to enable it.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

This is used on az6007.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Instead of creating two DVB frontend entries for the same device,
create just one entry, and fill the delivery_system according with
the supported standards.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

While the driver has support for both serial and parallel mode,
There's was way to select serial mode via configuration. Add
a config option for that, while keeping the default in serial mode.

Also, at debug mode, it will now print a message when mpeg is
enabled/disabled, and showing if parallel or serial mode were
selected, helping developers to double-check if the DRX-K is at
the right mode.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

With this patch I try again to add initial support for HVR930C.

Tested only DVB-T, since in Italy Analog service is stopped.

Actually "scan -a0 -f1", find only about 50 channel while 400 should
be available.

[mchehab@redhat.com: Tested with DVB-C and fixed a few whitespace issues]
Tested-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: NEddi De Pieri <eddi@depieri.net>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

If those demods are unselected, but a bridge driver requires them,
produce a runtime message, instead of missing symbols.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The driver is too limited: it assumes that UIO is used only for
controlling the antenna, and that only UIO-1 is in usage. However,
from Terratec H7 driver [1], 3 UIO's can be used. In fact, it seems
that H7 needs to use all 3. So, make the code generic enough to handle
the most complex scenario. For now, only antena GPIO can be specified,
but is is easier now to add the other GPIO/UIO needs.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Terratec H5 doesn't require to switch mode, but generates
an error due to this logic. Also, GPIO's are board-dependent.

So, add it at the board config struct.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

On em28xx, tda18271C2 is accessible when the i2c port
is not touched. Touching on it breaks the driver.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

The microcode firmware provided on Terratec H5 seems to be
different. Add a parameter to allow specifying a different
firmware per-device.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Instead of using #ifdef I2C_LONG_ADR for some devices, convert
it into a parameter. Terratec H5 logs from the original driver
seems to need this mode.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Currently, the only parameter to be configured is the I2C
address. However, Terratec H5 logs shows that it needs a different
setting for some things, and it has its own firmware.

So, move the addr into a config structure, in order to allow adding
the required configuration bits.
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>

Driver for the DRX-K DVB-C/T demodulator.
Signed-off-by: NRalph Metzler <rjkm@metzlerbros.de>
Signed-off-by: NOliver Endriss <o.endriss@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>