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2009-09-19V4L/DVB (12250): v4l: dm355 ccdc module for vpfe capture driverMuralidharan Karicheri
Adds ccdc hw module for DM355 CCDC. This registers with the bridge driver a set of hw_ops for configuring the CCDC for a specific decoder device connected to vpfe. Reviewed by: Hans Verkuil <hverkuil@xs4all.nl> Reviewed by: Laurent Pinchart <laurent.pinchart@skynet.be> Reviewed by: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-19V4L/DVB (12248): v4l: vpfe capture bridge driver for DM355 and DM6446Muralidharan Karicheri
This the vpfe capture bridge driver for doing video capture on DM355 and DM6446 evms. The ccdc hw modules register with the driver and are used for configuring the CCD Controller for a specific decoder interface. The driver also registers the sub devices required for a specific evm. More than one sub devices can be registered. This allows driver to switch dynamically to capture video from any sub device that is registered. Currently only one sub device (tvp5146) is supported. But in future this driver is expected to do capture from sensor devices such as Micron's MT9T001, MT9T031 and MT9P031 etc. The driver currently supports MMAP based IO. Reviewed by: Laurent Pinchart <laurent.pinchart@skynet.be> Reviewed by: Alexey Klimov <klimov.linux@gmail.com> Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-19V4L/DVB (12246): tvp514x: Migration to sub-device frameworkMuralidharan Karicheri
This patch converts TVP514x driver to sub-device framework from V4L2-int framework. [hverkuil@xs4all.nl: remove inline from the dump_reg function] Signed-off-by: Brijesh Jadav <brijesh.j@ti.com> Signed-off-by: Hardik Shah <hardik.shah@ti.com> Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-19V4L/DVB (12964): tuner-core: add support for NXP TDA18271 without TDA829X demodMichael Krufky
Add support for NXP TDA18271 as a standalone tuner, allowing the use of analog demodulators other than the Philips/NXP TDA829x. Signed-off-by: Michael Krufky <mkrufky@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-19V4L/DVB (12950): tuner-simple: add Philips CU1216LAntti Palosaari
add Philips CU1216L NIM Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12595): common/ir: use a struct for keycode tablesMauro Carvalho Chehab
Currently, V4L uses a scancode table whose index is the scancode and the value is the keycode. While this works, it has some drawbacks: 1) It requires that the scancode to be at the range 00-7f; 2) keycodes should be masked on 7 bits in order for it to work; 3) due to the 7 bits approach, sometimes it is not possible to replace the default keyboard to another one with a different encoding rule; 4) it is different than what is done with dvb-usb approach; 5) it requires a typedef for it to work. This is not a recommended Linux CodingStyle. This patch is part of a larger series of IR changes. It basically replaces the IR_KEYTAB_TYPE tables by a structured table: struct ir_scancode { u16 scancode; u32 keycode; }; This is very close to what dvb does. So, a further integration with DVB code will be easy. While we've changed the tables, for now, the IR keycode handling is still based on the old approach. The only notable effect is the redution of about 35% of the ir-common module size: text data bss dec hex filename 6721 29208 4 35933 8c5d old/ir-common.ko 5756 18040 4 23800 5cf8 new/ir-common.ko In thesis, we could be using above u8 for scancode, reducing even more the size of the module, but defining it as u16 is more convenient, since, on dvb, each scancode has up to 16 bits, and we currently have a few troubles with rc5, as their scancodes are defined with more than 8 bits. This patch itself shouldn't be doing any functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12591): em28xx: Add entry for GADMEI UTV330+ and related IR keymapMauro Carvalho Chehab
[mchehab@redhat.com: Fix a few wrong IR keymaps] Signed-off-by: Shine Liu <shinel@foxmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12552): FM TX: si4713: Add files to handle si4713 i2c deviceEduardo Valentin
This patch adds files to control si4713 devices. Internal functions to control device properties and initialization procedures are into these files. Also, a v4l2 subdev interface is also exported. This way other drivers can use this as v4l2 i2c subdevice. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12551): FM TX: si4713: Add files to add radio interface for si4713Eduardo Valentin
This patch adds files which creates the radio interface for si4713 FM transmitter (modulator) devices. In order to do the real access to device registers, this driver uses the v4l2 subdev interface exported by si4713 i2c driver. Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12547): v4l2-subdev.h: Add g/s_modulator callbacks to subdev apiEduardo Valentin
Signed-off-by: Eduardo Valentin <eduardo.valentin@nokia.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12463): Add support for Compro VideoMate S350 DVB-S PCI card.Igor M. Liplianin
Add Compro VideoMate S350 DVB-S driver. The card uses zl10313, zl10039, saa7130 integrated circuits. Signed-off-by: Igor M. Liplianin <liplianin@me.by> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12444): em28xx: add support for Terratec Cinergy Hybrid T USB XS ↵Devin Heitmueller
remote control Add support for the remote control that comes with the Cinergy Hybrid T USB XS Thanks to Jelle de Jong for providing sample hardware to test with. Cc: Jelle de Jong <jelledejong@powercraft.nl> Signed-off-by: Devin Heitmueller <dheitmueller@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12366): ir-kbd-i2c: Allow use of ir-kdb-i2c internal get_key funcs ↵Andy Walls
and set ir_type This patch augments the init data passed by bridge drivers to ir-kbd-i2c, so that the ir_type can be set explicitly, and so ir-kbd-i2c internal get_key functions can be reused without requiring symbols from ir-kbd-i2c in the bridge driver. Signed-off-by: Andy Walls <awalls@radix.net> Reviewed-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12334): tuner-simple: Add an entry for the Partsnic PTI-5NF05 NTSC ↵Andy Walls
tuner Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-09-12V4L/DVB (12158): v4l: add cropping prototypes to struct v4l2_subdev_video_opsGuennadi Liakhovetski
Add g_crop, s_crop and cropcap methods to video v4l2-subdev operations. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-07-24V4L/DVB (12283): gspca - sn9c20x: New subdriver for sn9c201 and sn9c202 bridges.Brian Johnson
Signed-off-by: Brian Johnson <brijohn@gmail.com> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-07-05V4L/DVB (12135): Add a driver for mt9v011 sensorMauro Carvalho Chehab
Adds driver for mt9v011 based on its datasheet, available at: http://download.micron.com/pdf/datasheets/imaging/MT9V011.pdf The driver was tested with a webcam that will be added on a next patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (11901): v4l2: Create helper function for bounding and aligning imagesTrent Piepho
Most hardware has limits on minimum and maximum image dimensions and also requirements about alignment. For example, image width must be even or a multiple of four. Some hardware has requirements that the total image size (width * height) be a multiple of some power of two. v4l_bound_align_image() will enforce min and max width and height, power of two alignment on width and height, and power of two alignment on total image size. It uses an efficient algorithm that will try to find the "closest" image size that meets the requirements. Signed-off-by: Trent Piepho <xyzzy@speakeasy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12125): v4l2: add new s_config subdev ops and ↵Hans Verkuil
v4l2_i2c_new_subdev_cfg/board calls Add a new s_config core ops call: this is called with the irq and platform data to be used to initialize the subdev. Added new v4l2_i2c_new_subdev_cfg and v4l2_i2c_new_subdev_board calls that allows you to pass these new arguments. The existing v4l2_i2c_new_subdev functions were modified to also call s_config. In the future the existing v4l2_i2c_new_subdev functions will be replaced by a single v4l2_i2c_new_subdev function similar to v4l2_i2c_new_subdev_cfg but without the irq and platform_data arguments. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12108): v4l2-i2c-drv.h: add comment describing when not to use this ↵Hans Verkuil
header. Make it very clear that this header should not be used for i2c drivers that do not need to be compiled for pre-2.6.26 kernels. As soon as the minimum supported kernel in the v4l-dvb repository becomes 2.6.26 or up, then this header should be removed entirely. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-23V4L/DVB (12102): em28xx: add Remote control support for EVGA inDtubeDevin Heitmueller
Add an IR profile for the EVGA inDtube remote control (which is an NEC type remote) Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11933): tuner-simple, tveeprom: Add Philips FQ1216LME MK3 analog tunerAndy Walls
Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11845): ir-kbd-i2c: Use initialization dataJean Delvare
For specific boards, pass initialization data to ir-kbd-i2c instead of modifying the settings after the device is initialized. This is more efficient and easier to read. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11844): ir-kbd-i2c: Switch to the new-style device binding modelJean Delvare
Let card drivers probe for IR receiver devices and instantiate them if found. Ultimately it would be better if we could stop probing completely, but I suspect this won't be possible for all card types. There's certainly room for cleanups. For example, some drivers are sharing I2C adapter IDs, so they also had to share the list of I2C addresses being probed for an IR receiver. Now that each driver explicitly says which addresses should be probed, maybe some addresses can be dropped from some drivers. Also, the special cases in saa7134-i2c should probably be handled on a per-board basis. This would be more efficient and less risky than always probing extra addresses on all boards. I'll give it a try later. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11843): ir-kbd-i2c: Don't use i2c_client.name for our own needsJean Delvare
In the standard device driver binding model, the name field of struct i2c_client is used to match devices to their drivers, so we must stop using it for internal purposes. Define a separate field in struct IR_i2c as a replacement, and use it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11775): tuner: add support Philips MK5 tunerDmitri Belimov
Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11743): Analog Devices ADV7343 video encoder driverChaithrika U S
Add ADV7343 I2C based video encoder driver. This follows the v4l2-subdev framework. This driver has been tested on TI DM646x EVM. It has been tested for Composite and Component outputs. Updates as per review by Mauro Chehab, added support for more standards supported by the encoder. Also adding the missed out signed-offs.Tested only NTSC and PAL standards. [hverkuil@xs4all.nl: s_routing API changed, updated driver to use new API] Signed-off-by: Manjunath Hadli <mrh@ti.com> Signed-off-by: Brijesh Jadav <brijesh.j@ti.com> Signed-off-by: Chaithrika U S <chaithrika@ti.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11742): TI THS7303 video amplifier driver codeChaithrika U S
This patch adds driver for TI THS7303 video amplifier. This driver is implemented as a v4l2 sub device. Tested on TI DM646x EVM. This version has updates based on review comments by Mauro Chehab. Signed-off-by: Chaithrika U S <chaithrika@ti.com> Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11705): soc-camera: prepare for the platform driver conversionGuennadi Liakhovetski
Add a platform driver to soc_camera.c. This way we preserve backwards compatibility with existing platforms and can start converting them one by one to the new platform-device soc-camera interface. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11673): v4l2-device: unregister i2c_clients when unregistering the ↵Hans Verkuil
v4l2_device. Until now I relied on i2c_del_adapter to unregister the i2c_clients for me, however, if the i2c bus is a platform bus then it is never deleted. So instead I need to unregister i2c clients when unregistering the v4l2_device. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11671): v4l2: add v4l2_device_set_name()Hans Verkuil
Add a utility function that can be used to setup the v4l2_device's name field in a standard manner. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11609): soc-camera: remove an extra device generation from struct ↵Guennadi Liakhovetski
soc_camera_host Make camera devices direct children of host platform devices, move the inheritance management into the soc_camera.c core driver. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11607): soc-camera: add a free_bus method to struct soc_camera_linkGuennadi Liakhovetski
Currently pcm990 camera bus-width management functions request a GPIO and never free it again. With this approach the GPIO extender driver cannot be unloaded once camera drivers have been loaded, also unloading theb i2c-pxa bus driver produces errors, because the GPIO extender driver cannot unregister properly. Another problem is, that if camera drivers are once loaded before the GPIO extender driver, the platform code marks the GPIO unavailable and only a reboot helps to recover. Adding an explicit free_bus method and using it in mt9m001 and mt9v022 drivers fixes these problems. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16V4L/DVB (11517): v4l: remove driver-core BUS_ID_SIZEKay Sievers
The name size limit is gone from the driver core, the BUS_ID_SIZE value will be removed. Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11381): ivtv/cx18: remove VIDIOC_INT_S_AUDIO_ROUTING debug support.Hans Verkuil
Remove support for the debug call VIDIOC_INT_S_AUDIO_ROUTING from cx18 and ivtv. These internal ioctls shouldn't be exposed. These were only used through the cx18-ctl and ivtv-ctl utilities, and only when testing a new card variant. This cleanup allows the removal of this ioctl from v4l2-common.h. Cc: Andy Walls <awalls@radix.net> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11380): v4l2-subdev: change s_routing prototypeHans Verkuil
It is no longer needed to use a struct pointer as argument, since v4l2_subdev doesn't require that ioctl-like approach anymore. Instead just pass the input, output and config (new!) arguments directly. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11377): v4l: increase version numbers of drivers converted to ↵Hans Verkuil
v4l2_subdev. With all the v4l2_subdev changes that were made to these drivers it is a good idea to increase the version number of each driver. It's just the patch level that is increased, except for the zoran and saa7146 drivers where the minor number was increased due to the more substantial changes that were made to those two drivers. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11376): tvaudio.h: add static inline to retrieve the list of ↵Hans Verkuil
possible i2c addrs. Rather than duplicating this list everywhere, just put it in tvaudio.h. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11373): v4l2-common: add explicit v4l2_device pointer as first arg ↵Hans Verkuil
to new_(probed)_subdev The functions v4l2_i2c_new_subdev and v4l2_i2c_new_probed_subdev relied on i2c_get_adapdata to return the v4l2_device. However, this is not always possible on embedded platforms. So modify the API to pass the v4l2_device pointer explicitly. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11374): v4l2-common: add v4l2_i2c_new_probed_subdev_addrHans Verkuil
Add utility function to probe for a single address, rather than a list of addresses. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11372): v4l2: use old-style i2c API for kernels < 2.6.26 instead of ↵Hans Verkuil
< 2.6.22 Originally the intention was to switch to the new style i2c API starting with the introduction of the API in 2.6.22. However, the i2c_new_probed_device() function has a lethal bug that wasn't fixed until 2.6.25. Or more accurately, it was only fixed in the stable series of 2.6.25 and 2.6.26. Given the fact that the new i2c API also changed starting with 2.6.26 (the addition of i2c_device_id), it is easiest to switch APIs starting with 2.6.26. This patch updates all the legacy code accordingly. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11371): v4l2: remove legacy fields in v4l2-i2c-drv.h.Hans Verkuil
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11370): v4l2-subdev: move s_std from tuner to core.Hans Verkuil
s_std didn't belong in the tuner ops. Stricly speaking it should be part of the video ops, but it is used by audio and tuner devices as well, so it is more efficient to make it part of the core ops. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11369): v4l2-subdev: add load_fw and use that instead of abusing ↵Hans Verkuil
core->init. The init callback was used in several places to load firmware. Make a separate load_fw callback for that. This makes the code a lot more understandable. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11368): v4l2-subdev: move s_standby from core to tuner.Hans Verkuil
s_standby is only used to put the tuner in powersaving mode, so move it from core to tuner. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11367): v4l2-common: remove legacy codeHans Verkuil
Now that all drivers are converted to v4l2_subdev we can remove legacy code in v4l2-common. Also move the documentation of the internal API to v4l2-subdev.h where it really belongs. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11366): v4l: remove obsolete header and sourceHans Verkuil
v4l2-subdev.c and v4l2-i2c-drv-legacy.h were used to support the old i2c API. All v4l drivers are now converted to v4l2_subdev, so these two files can be removed. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-04-06V4L/DVB (11327): ov772x: add edge contrl supportKuninori Morimoto
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11313): v4l2-subdev: add enum_framesizes and enum_frameintervals.Hans Verkuil
These callbacks are needed for omap. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-03-30V4L/DVB (11242): allow v4l2 drivers to provide a get_unmapped_area handlerDaniel Glöckner
Shared memory mappings on nommu machines require a get_unmapped_area file operation that suggests an address for the mapping. This patch adds a way for v4l2 drivers to provide this callback. Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>