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2016-02-16[media] cx231xx: use v4l2 core function to create the MC graphMauro Carvalho Chehab1-52/+3
Instead of having its own routine, use the one defined at the core, as it is generic enough to handle the cx231xx usecases. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-16[media] em28xx-dvb: create RF connector on DVB-only modeMauro Carvalho Chehab2-2/+8
When in analog mode, the RF connector will be created by em28xx-video. However, when the device is in digital mode only, the RF connector is not shown. In this case, let the DVB core to create it for us. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-16[media] use v4l2_mc_usb_media_device_init() on most USB devicesMauro Carvalho Chehab5-65/+17
Except for the usbuvc driver (with has an embedded media_device struct on it), the other drivers have a pointer to media_device. On those drivers, replace their own implementation for the core one. That warrants that those subdev drivers will fill the media_device info the same way. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-11[media] tvp5150: move input definition header to dt-bindingsJavier Martinez Canillas1-1/+1
Add a header file for the tvp5150 input connectors constants that can be shared between the driver and Device Tree source files. [mchehab@osg.samsung.com: rename tvp5150.h also at em28xx-cards.c] Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-10[media] au0828: move V4L2-specific code to au0828-core.cMauro Carvalho Chehab3-152/+187
Instead of having lots of #ifdefs inside au0828-core due to V4L2, move the dependencies to au0828-video.c. That allows removing all those ifdefs, as au0828-video is only compiled if CONFIG_VIDEO_AU0828_V4L2. This fixes the following warnings reported by Kbuild test with a random config with au0828 enabled, but V4L2 is disabled. All warnings (new ones prefixed by >>): drivers/media/usb/au0828/au0828-core.c: In function 'au0828_usb_probe': >> drivers/media/usb/au0828/au0828-core.c:463:1: warning: label 'done' defined but not used [-Wunused-label] done: ^ drivers/media/usb/au0828/au0828-core.c: At top level: drivers/media/usb/au0828/au0828-core.c:250:12: warning: 'au0828_create_media_graph' defined but not used [-Wunused-function] static int au0828_create_media_graph(struct au0828_dev *dev) ^ Tested with a WinTV HVR 950Q (USB ID: 2040:7200) Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-10[media] au0828: only create V4L2 graph if V4L2 is registeredMauro Carvalho Chehab1-9/+15
It doesn't make sense to try to create the analog TV graph, if the device fails to register at V4L2, or if it doesn't have V4L2 support. Thanks to Shuah for pointing this issue. Reported-by: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-10[media] em2xx: use v4l2_mc_create_media_graph()Mauro Carvalho Chehab1-130/+1
Now that the core has a function to create the media graph, we can get rid of the specialized code at em28xx. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-04[media] dvb_frontend: pass the props cache to get_frontend() as argMauro Carvalho Chehab3-6/+7
Instead of using the DTV properties cache directly, pass the get frontend data as an argument. For now, everything should remain the same, but the next patch will prevent get_frontend to affect the global cache. This is needed because several drivers don't care enough to only change the properties if locked. Due to that, calling G_PROPERTY before locking on those drivers will make them to never lock. Ok, those drivers are crap and should never be merged like that, but the core should not rely that the drivers would be doing the right thing. Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-04[media] friio-fe: remove get_frontend() callbackMauro Carvalho Chehab1-17/+10
This driver doesn't support getting frontend information and it only works in automatic mode. So, let's remove get_frontend() and update the cache at set_frontend(). Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-02[media] usbvision: fix locking errorInsu Yun1-1/+1
When remove_pending is non-zero, v4l2_lock is never unlocked. Signed-off-by: Insu Yun <wuninsu@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] hdpvr: hide unused variableArnd Bergmann1-0/+2
The i2c client pointer is only used when CONFIG_I2C is set, and otherwise produces a compile-time warning: drivers/media/usb/hdpvr/hdpvr-core.c: In function 'hdpvr_probe': drivers/media/usb/hdpvr/hdpvr-core.c:276:21: error: unused variable 'client' [-Werror=unused-variable] This uses the same #ifdef to hide the variable when the code using it is hidden. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] pwc: Add USB id for Philips Spc880nc webcamHans de Goede1-0/+6
SPC 880NC PC camera discussions: http://www.pclinuxos.com/forum/index.php/topic,135688.0.html Cc: stable@vger.kernel.org Reported-by: Kikim <klucznik0@op.pl> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] rtl28xxu: retry failed i2c messagesAntti Palosaari1-0/+8
Sometimes i2c transfer fails. That happens especially when large amount of data is written sequentially eg. firmware download. Problem arises with both integrated rtl2832 demod and external mn88472 demod, which is clear indicator it is busy i2c bus issue. Use i2c core retry logic in order fix the issue by repeating failed message. Another solution which also works is to add ~100us delay between i2c messages - but repeating sounds more elegant and does not cause any extra delay for success cases. Signed-off-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] dvb-usb-dvbsky: add new product id for TT CT2-4650 CITorbjörn Jansson1-0/+4
Add a new product id to dvb-usb-dvbsky for new version of TechnoTrend CT2-4650 CI Signed-off-by: Torbjörn Jansson <torbjorn.jansson@mbox200.swipnet.se> Reviewed-by: Olli Salonen <olli.salonen@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] af9035: add support for 2nd tuner of MSI DigiVox DiversityStefan Pöschel2-3/+4
PIP tested with VLC. Diversity tested with the Windows driver. Signed-off-by: Stefan Pöschel <basic.master@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] dw2102: Add support for Terratec Cinergy S2 USB BOXPhilipp Zabel1-1/+7
The Terratec Cinergy S2 USB BOX uses a Montage M88TS2022 tuner and a M88DS3103 demodulator, same as Technotrend TT-connect S2-4600. This patch adds the missing USB Product ID to make it work. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] cx231xx: Fix memory leakJean-Baptiste Theou1-0/+5
dma_area needs to be freed when the device is closed. Based on em23xx-audio.c Signed-off-by: Jean-Baptiste Theou <jtheou@adeneo-embedded.us> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] drivers/media/usb/dvb-usb-v2: constify mxl111sf_tuner_config structureJulia Lawall3-8/+8
This mxl111sf_tuner_config structure is never modified, so declare it as const. There are some indentation changes to remain within 80 columns. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Michael Ira Krufky <mkrufky@linuxtv.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] usbtv: correctly handling failed allocationInsu Yun1-0/+4
Since kzalloc can be failed, if not properly handled, NULL dereference could be happened. Signed-off-by: Insu Yun <wuninsu@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] cx231xx: correctly handling failed allocationInsu Yun1-0/+2
Since kmalloc can be failed in memory pressure, if not properly handled, NULL dereference can be happend Signed-off-by: Insu Yun <wuninsu@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] hdpvr: Refactoring for hdpvr_read()Markus Elfring1-4/+2
Let us return directly if the element "status" of the variable "buf" indicates "BUFSTAT_READY". A check repetition can be excluded for the variable "ret" at the end then. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] au0828: Refactoring for start_urb_transfer()Markus Elfring1-7/+5
This issue was detected by using the Coccinelle software. 1. Let us return directly if a buffer allocation failed. 2. Delete the jump label "err" then. 3. Drop the explicit initialisation for the variable "ret" at the beginning. 4. Return zero as a constant at the end. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] stk1160: Remove redundant vb2_buf payload setEzequiel Garcia1-1/+0
Calling vb2_set_plane_payload is enough, there's no need to set the planes[] bytesused field. Remove it. Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] bttv-driver, usbvision-video: use to_video_device()Geliang Tang1-18/+9
Use to_video_device() instead of open-coding it. Signed-off-by: Geliang Tang <geliangtang@163.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] usbtv: discard redundant video fieldsNikola Forró2-14/+20
There are many dropped fields with some sources, leading to many redundant fields without counterparts. When this redundant field is odd, a new frame is pushed containing this odd field interleaved with whatever was left in the buffer, causing video artifacts. Do not push a new frame after processing every odd field, but do it only after those which come after an even field. Signed-off-by: Nikola Forró <nikola.forro@gmail.com> Acked-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] go7007: constify go7007_hpi_ops structuresJulia Lawall2-3/+3
The go7007_hpi_ops structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] drivers/media/usb/as102: constify as102_priv_ops_t structureJulia Lawall2-2/+2
The as102_priv_ops_t structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] constify stv6110x_devctl structureJulia Lawall1-1/+1
The stv6110x_devctl structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] em28xx: add media controller supportMauro Carvalho Chehab5-10/+366
Add the needed bits to make em28xx to create a media controller graph. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] em28xx: avoid divide by zero errorMauro Carvalho Chehab1-0/+11
[ 1841.243670] divide error: 0000 [#1] SMP KASAN [ 1841.243994] Modules linked in: em28xx_rc rc_core tda18271 drxk em28xx_dvb dvb_core em28xx_alsa mt9v011 em28xx_v4l videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_core em28xx tveeprom v4l2_common videodev media cpufreq_powersave cpufreq_conservative cpufreq_userspace cpufreq_stats parport_pc ppdev lp parport snd_hda_codec_hdmi intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm iTCO_wdt iTCO_vendor_support irqbypass crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel sha256_ssse3 sha256_generic hmac drbg i915 snd_hda_codec_realtek snd_hda_codec_generic aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd btusb i2c_algo_bit snd_hda_intel btrtl drm_kms_helper btbcm evdev snd_hda_codec btintel psmouse bluetooth pcspkr snd_hwdep sg drm serio_raw [ 1841.244845] snd_hda_core snd_pcm mei_me rfkill snd_timer mei snd lpc_ich soundcore shpchp i2c_i801 mfd_core battery dw_dmac i2c_designware_platform i2c_designware_core dw_dmac_core video acpi_pad button tpm_tis tpm ext4 crc16 mbcache jbd2 dm_mod hid_generic usbhid sd_mod ahci libahci libata ehci_pci e1000e xhci_pci ptp scsi_mod ehci_hcd xhci_hcd pps_core fan thermal sdhci_acpi sdhci mmc_core i2c_hid hid [last unloaded: tveeprom] [ 1841.245342] CPU: 2 PID: 38 Comm: kworker/2:1 Tainted: G W 4.5.0-rc1+ #43 [ 1841.245413] Hardware name: /NUC5i7RYB, BIOS RYBDWi35.86A.0350.2015.0812.1722 08/12/2015 [ 1841.245503] Workqueue: events request_module_async [em28xx] [ 1841.245557] task: ffff88009df10000 ti: ffff88009df18000 task.ti: ffff88009df18000 [ 1841.245626] RIP: 0010:[<ffffffffa135a0ad>] [<ffffffffa135a0ad>] size_to_scale+0xed/0x2c0 [em28xx_v4l] [ 1841.245714] RSP: 0018:ffff88009df1faa8 EFLAGS: 00010246 [ 1841.245756] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8803bb933b38 [ 1841.245815] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8803bb933b00 [ 1841.245879] RBP: ffff88009df1fad8 R08: ffff8803bb933b3c R09: 1ffff10077726760 [ 1841.245944] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1841.246006] R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8803b391a130 [ 1841.246071] FS: 0000000000000000(0000) GS:ffff8803c6900000(0000) knlGS:0000000000000000 [ 1841.246141] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1841.246194] CR2: 0000000001d97008 CR3: 00000003bdd85000 CR4: 00000000003406e0 [ 1841.246256] Stack: [ 1841.246278] 0000000000000246 ffff8803bb9321f0 ffff8803bb932270 ffffffffa136f7a0 [ 1841.246359] 0000000000000000 ffff8803bb932130 ffff88009df1fb20 ffffffffa13646a0 [ 1841.246439] ffffffffa127f206 ffff8803bb932130 ffff8803bb932130 ffff8803b391a130 [ 1841.246517] Call Trace: [ 1841.246548] [<ffffffffa13646a0>] em28xx_set_video_format+0x140/0x1e0 [em28xx_v4l] Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] em28xx: make sure that the device has videoMauro Carvalho Chehab1-1/+10
There are some devices, like Terratec Cinergy HTC, where while the device supports analog TV, the driver is not capable yet of handling it, because the analog TV driver was not written. So, don't bind the em28xx-v4l drivers on such devices. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] em28xx: fix tuner detection for Pixelview Prolink PlayTV USB 2.0Mauro Carvalho Chehab1-0/+1
The tuner is at address 0x60. This address is not probed by default by tuner anymore, so we need to explicitly add it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] em28xx: unregister devices in case of failureMauro Carvalho Chehab1-0/+16
If something bad happens during device registration, unregister the already registered devices. Without that, it will have lots of KASAN errors when udev would try to open the devices. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] tuner.h: rename TUNER_PAD_IF_OUTPUT to TUNER_PAD_OUTPUTMauro Carvalho Chehab3-3/+3
The output of a tuner is not only IF frequencies. They may also output audio on some of its pins, and may even be a zero-IF tuner, with outputs a baseband. So, rename the PAD name to make it clearer and add a proper documentation about that at tuner.h. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01[media] em28xx: remove unused input typesMauro Carvalho Chehab3-85/+73
The em28xx driver have lots of different input types but only 4 of such types are actually used. The others are bogus. Remove them, in order to cleanup the driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-26[media] em28xx: fix implementation of s_streamMauro Carvalho Chehab1-1/+9
On em28xx driver, s_stream subdev ops was not implemented properly. It was used only to disable stream, never enabling it. That was the root cause of the regression when we added support for s_stream on tvp5150 driver. With that, we can get rid of the changes on tvp5150 side, e. g. changeset 47de9bf8931e ('[media] tvp5150: Fix breakage for serial usage'). Tested video output on em2820+tvp5150 on WinTV USB2 and video and/or vbi output on em288x+tvp5150 on HVR 950. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25[media] msi2500: Delete an unnecessary check in msi2500_set_usb_adc()Markus Elfring1-2/+0
This issue was detected by using the Coccinelle software. Return the value from a call of the msi2500_ctrl_msg() function without using an extra check for the variable "ret" at the end. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25[media] dw2102: use the new USB ID Terratec Cinergy S2 macrosMauro Carvalho Chehab1-2/+2
Now that this was defined at usb-id.h, update the values for USB_PID_TERRATEC_CINERGY_S2_R1 and USB_PID_TERRATEC_CINERGY_S2_R2. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25[media] Add support for Terratec Cinergy S2 Rev.4Benjamin Larsson1-0/+3
Also Add Terratec Cinergy S2 usb id's Signed-off-by: Benjamin Larsson <benjamin@southpole.se> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25[media] dib8000: Add support for Mygica/Geniatech S2870Nicolas Sugino1-2/+75
MyGica/Geniatech S2870 is very similar to the S870 but with dual tuner. The card is recognised as Geniatech STK8096-PVR. [mchehab@osg.samsung.com: Fix some checkpatch.pl issues] Signed-off-by: Nicolas Sugino <nsugino@3way.com.ar> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25[media] media: change email addressPatrick Boettcher34-48/+48
Soon my dibcom.fr/parrot.com-address won't respond anymore. Thus I'm replacing it. And, while being at it, let's adapt some other (old) email-addresses as well. Signed-off-by: Patrick Boettcher <patrick.boettcher@posteo.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-13Merge tag 'media/v4.5-2' of ↵Linus Torvalds15-94/+494
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull second batch of media updates from Mauro Carvalho Chehab: "This is the second part of the media patches. It contains the media controller next generation patches, with is the result of one year of discussions and development. It also contains patches to enable media controller support at the DVB subsystem. The goal is to improve the media controller to allow proper support for other types of Video4Linux devices (radio and TV ones) and to extend the media controller functionality to allow it to be used by other subsystems like DVB, ALSA and IIO. In order to use the new functionality, a new ioctl is needed (MEDIA_IOC_G_TOPOLOGY). As we're still discussing how to pack the struct fields of this ioctl in order to avoid compat32 issues, I decided to add a patch at the end of this series commenting out the new ioctl, in order to postpone the addition of the new ioctl to the next Kernel version (4.6). With that, no userspace visible changes should happen at the media controller API, as the existing ioctls are untouched. Yet, it helps DVB, ALSA and IIO developers to develop and test the patches adding media controller support there, as the core will contain all required internal changes to allow adding support for devices that belong to those subsystems" * tag 'media/v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (177 commits) [media] Postpone the addition of MEDIA_IOC_G_TOPOLOGY [media] mxl111sf: Add a tuner entity [media] dvbdev: create links on devices with multiple frontends [media] media-entitiy: add a function to create multiple links [media] dvb-usb-v2: postpone removal of media_device [media] dvbdev: Add RF connector if needed [media] dvbdev: remove two dead functions if !CONFIG_MEDIA_CONTROLLER_DVB [media] call media_device_init() before registering the V4L2 device [media] uapi/media.h: Use u32 for the number of graph objects [media] media-entity: don't sleep at media_device_register_entity() [media] media-entity: increase max number of PADs [media] media-entity.h: document the remaining functions [media] media-device.h: use just one u32 counter for object ID [media] media-entity.h fix documentation for several parameters [media] DocBook: document media_entity_graph_walk_cleanup() [media] move documentation to the header files [media] media: Move MEDIA_ENTITY_MAX_PADS from media-entity.h to media-entity.c [media] media: Remove pre-allocated entity enumeration bitmap [media] staging: v4l: davinci_vpbe: Use the new media graph walk interface [media] staging: v4l: omap4iss: Use the new media graph walk interface ...
2016-01-11[media] mxl111sf: Add a tuner entityMauro Carvalho Chehab2-0/+25
While mxl111sf may have multiple frontends, it has just one tuner. Reflect that on the media graph. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] dvb-usb-v2: postpone removal of media_deviceMauro Carvalho Chehab1-1/+1
We should not remove the media_device until its last usage, or we may have use after free troubles. So, move the per-adapter media_device removal to happen at the end of the adapter removal code. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] dvbdev: Add RF connector if neededMauro Carvalho Chehab4-4/+4
Several pure digital TV devices have a frontend with the tuner integrated on it. Add the RF connector when dvb_create_media_graph() is called on such devices. Tested with siano and dvb_usb_mxl111sf drivers. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] usb: check media device errorsMauro Carvalho Chehab4-20/+54
There are now two new warnings: drivers/media/usb/dvb-usb-v2/dvb_usb_core.c: In function 'dvb_usbv2_media_device_register': drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:433:2: warning: ignoring return value of '__media_device_register', declared with attribute warn_unused_result [-Wunused-result] media_device_register(adap->dvb_adap.mdev); ^ drivers/media/usb/dvb-usb/dvb-usb-dvb.c: In function 'dvb_usb_media_device_register': drivers/media/usb/dvb-usb/dvb-usb-dvb.c:128:2: warning: ignoring return value of '__media_device_register', declared with attribute warn_unused_result [-Wunused-result] media_device_register(adap->dvb_adap.mdev); ^ Those are because the drivers are not properly checking if the media device init and register were succeeded. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] media-device: split media initialization and registrationJavier Martinez Canillas6-57/+68
The media device node is registered and so made visible to user-space before entities are registered and links created which means that the media graph obtained by user-space could be only partially enumerated if that happens too early before all the graph has been created. To avoid this race condition, split the media init and registration in separate functions and only register the media device node when all the pending subdevices have been registered, either explicitly by the driver or asynchronously using v4l2_async_register_subdev(). The media_device_register() had a check for drivers not filling dev and model fields but all drivers in mainline set them and not doing it will be a driver bug so change the function return to void and add a BUG_ON() for dev being NULL instead. Also, add a media_device_cleanup() function that will destroy the graph_mutex that is initialized in media_device_init(). [mchehab@osg.samsung.com: Fix compilation if !CONFIG_MEDIA_CONTROLLER and remove two warnings added by this changeset] Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] uvcvideo: register entity subdev on initJavier Martinez Canillas1-24/+9
The uvc_mc_register_entities() function iterated over the entities three times to initialize the entities, register the subdev for the ones whose type was UVC_TT_STREAMING and to create the entities links. But this can be simplied by merging the init and registration logic in a single loop. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] uvcvideo: remove pads prefix from uvc_mc_create_pads_links()Javier Martinez Canillas1-3/+3
The function uvc_mc_create_pads_links() creates entities links but the "pads" prefix is redundant since the driver doesn't handle any other kind of link, so it can be removed. Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11[media] media framework: rename pads init function to media_entity_pads_init()Mauro Carvalho Chehab3-7/+7
With the MC next gen rework, what's left for media_entity_init() is to just initialize the PADs. However, certain devices, like a FLASH led/light doesn't have any input or output PAD. So, there's no reason why calling media_entity_init() would be mandatory. Also, despite its name, what this function actually does is to initialize the PADs data. So, rename it to media_entity_pads_init() in order to reflect that. The media entity actual init happens during entity register, at media_device_register_entity(). We should move init of num_links and num_backlinks to it. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>