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2017-06-07[media] staging: atomisp: Add INT0310 ACPI id to gc0310 driverHans de Goede
Add INT0310 ACPI id to gc0310 driver Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] staging: atomisp: Set step to 0 for mt9m114 menu controlHans de Goede
menu controls are not allowed to have a step size, set step to 0 to fix an oops from the WARN_ON in v4l2_ctrl_new_custom() triggering because of this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] staging: atomisp: Do not call dev_warn with a NULL deviceHans de Goede
Do not call dev_warn with a NULL device, this silence the following 2 warnings: [ 14.392194] (NULL device *): Failed to find gmin variable gmin_V2P8GPIO [ 14.392257] (NULL device *): Failed to find gmin variable gmin_V1P8GPIO We could switch to using pr_warn for dev == NULL instead, but as comments in the source indicate, the check for these 2 special gmin variables with a NULL device is a workaround for 2 specific evaluation boards, so completely silencing the missing warning for these actually is a good thing. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] staging: atomisp: Fix calling efivar_entry_get() with unaligned ↵Hans de Goede
arguments efivar_entry_get has certain alignment requirements and the atomisp platform code was not honoring these, causing an oops by triggering the WARN_ON in arch/x86/platform/efi/efi_64.c: virt_to_phys_or_null_size(). This commit fixes this by using the members of the efivar struct embedded in the efivar_entry struct we kzalloc as arguments to efivar_entry_get(), which is how all the other callers of efivar_entry_get() do this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp: de-duplicate sh_css_mmu_set_page_table_base_indexAlan Cox
Between the ISP2400 and ISP2401 code base this function moved file. The merge of the drivers left us with two version in ifdefs. Resolve this down to a single copy. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp: remove sh_css_irq - it contains nothingAlan Cox
We won't be adding abstractions or moving them here so kill it. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp: Unify lut free logicAlan Cox
ISP2401 introduced a helper for this which we can use just as well on the ISP2400 and remove some more noise differences. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp: Unify load_preview_binaries for the most partAlan Cox
ISP2401 introduced a rather sensible change to cut through the structure spaghetti. Adopt that for the ISP2400 as well. It makes no difference to the actual code other than readability. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp: unify sh_css_hmm_buffer_record_acquireAlan Cox
The ISP2401 version of this function returns a pointer to the buffer, whilst the ISP2400 version returns a boolean if a slot is found. We can trivially unify the code to use the ISP2401 version. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp: eliminate dead code under HAS_RES_MGRAlan Cox
This define is never set and these code paths are never used so they can go away. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp2: off by one in atomisp_s_input()Dan Carpenter
The isp->inputs[] array has isp->input_cnt elements which have been initialized so this > should be >=. This bug is harmless. The check against ATOM_ISP_MAX_INPUTS prevents us from reading beyond the end of the array. The uninitialized elements are zeroed out so we will end up returning -EINVAL a few lines later because the .camera pointer is NULL. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp2: tidy up confused ifdefsAlan Cox
The two drivers were machine merged and in this case the machine output was to say the least not optimal. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp2: remove HRT_UNSCHEDAlan Cox
HRT_UNSCHED is never defined or set in the driver, so this is dead code that can be retired, simplifying the code a bit further. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp: remove NUM_OF_BLSAlan Cox
With the removal of the HAS_BL bootloader code the value of NUM_OF_BLS is an invariant zero. So let's get rid of it. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atompisp: HAS_BL is never defined so lose itAlan Cox
Kill off the HAS_BL define and the code and includes it brackets. We never define HAS_BL or use that functionality. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] staging: media: atomisp: fix non static symbol warningsJuan Antonio Pedreira Martos
Fix a couple of sparse warnings: drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c:59:14: warning: symbol 'repool_pgnr' was not declared. Should it be static? drivers/staging/media/atomisp/pci/atomisp2/atomisp_v4l2.c:387:6: warning: symbol 'punit_ddr_dvfs_enable' was not declared. Should it be static? Mark these symbols as static, so they are no longer incorrectly exported. Signed-off-by: Juan Antonio Pedreira Martos <juanpm1@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atomisp: use NULL instead of 0 for pointersPaolo Cretaro
Fix warning issued by sparse: Using plain integer as NULL pointer Signed-off-by: Paolo Cretaro <melko@frugalware.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] staging: media: cxd2099: Fix checkpatch issuesChristoph Fanelsa
Fix checkpatch warnings of prefered using '%s..", __func__' as function name in a string Signed-off-by: Christoph Fanelsa <eddi1983@gmx.net> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] mtk-vcodec: Show mtk driver error without DEBUG definitionHirokazu Honda
A driver error message is shown without DEBUG definition to find an error and debug easily. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] media: mtk-mdp: Fix mdp device treeDaniel Kurtz
If the mdp_* nodes are under an mdp sub-node, their corresponding platform device does not automatically get its iommu assigned properly. Fix this by moving the mdp component nodes up a level such that they are siblings of mdp and all other SoC subsystems. This also simplifies the device tree. Although it fixes iommu assignment issue, it also break compatibility with old device tree. So, the patch in driver is needed to iterate over sibling mdp device nodes, not child ones, to keep driver work properly. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] coda: copy headers in front of every I-framePhilipp Zabel
That way we don't have to rely on userspace to inject the headers on IDR requests, and there is always enough information to start decoding at an I-frame. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] coda: implement forced key framesPhilipp Zabel
Implement the V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME control to force IDR frames. This is useful to implement VFU (Video Fast Update) on RTP transmissions. We already force an IDR frame at the beginning of each GOP to work around a firmware bug on i.MX27, use the same mechanism to service IDR requests from userspace. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] cx18: Fix a sleep-in-atomic bug in snd_cx18_pcm_hw_freeJia-Ju Bai
The driver may sleep under a spin lock, and the function call path is: snd_cx18_pcm_hw_free (acquire the lock by spin_lock_irqsave) vfree --> may sleep To fix it, the "substream->runtime->dma_area" is passed to a temporary value, and mark it NULL when holding the lock. The memory is freed by vfree through the temporary value outside the lock holding. Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com> [hans.verkuil@cisco.com: removed unnecessary 'if (dma_area)'] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] ivtv: Fix a sleep-in-atomic bug in snd_ivtv_pcm_hw_freeJia-Ju Bai
The driver may sleep under a spin lock, and the function call path is: snd_ivtv_pcm_hw_free (acquire the lock by spin_lock_irqsave) vfree --> may sleep To fix it, the "substream->runtime->dma_area" is passed to a temporary value, and mark it NULL when holding the lock. The memory is freed by vfree through the temporary value outside the lock holding. Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com> [hans.verkuil@cisco.com: removed unnecessary 'if (dma_area)'] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] davinci: vpif_capture: cleanup raw camera supportKevin Hilman
The current driver has a handful of hard-coded assumptions based on its primary use for capture of video signals. Cleanup those assumptions, and also query the subdev for format information and use that if available. Tested with 10-bit raw bayer input (SGRBG10) using the aptina,mt9v032 sensor, and also tested that composite video input still works from ti,tvp514x decoder. Both tests done on the da850-evm board with the add-on UI board. NOTE: Will need further testing for other sensors with different bus formats. Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] davinci: vpif_capture: get subdevs from DT when availableKevin Hilman
Enable getting of subdevs from DT ports and endpoints. The _get_pdata() function was larely inspired by (i.e. stolen from) am437x-vpfe.c Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] davinci: vpif_capture: drop compliance hackKevin Hilman
Capture driver silently overrides pixel format with a hack (according to the comments) to pass v4l2 compliance tests. This isn't needed for normal functionality, and works for composite video and raw camera capture without. In addition, the hack assumes that it only supports raw capture with a single format (SBGGR8) which isn't true. VPIF can also capture 10- and 12-bit raw formats as well. Forthcoming patches will enable VPIF input with raw-camera support and has been tested with 10-bit format from the aptina,mt9v032 sensor. Any compliance failures should be fixed with a real fix. Signed-off-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] ir-spi: Fix issues with lirc APIAnton Blanchard
The ir-spi driver has 2 issues which prevents it from working with lirc: 1. The ir-spi driver uses 16 bits of SPI data to create one cycle of the waveform. As such our SPI clock needs to be 16x faster than the carrier frequency. The driver is inconsistent in how it currently handles this. It initializes it to the carrier frequency: But the commit message has some example code which initialises it to 16x the carrier frequency: val = 608000; ret = ioctl(fd, LIRC_SET_SEND_CARRIER, &val); To maintain compatibility with lirc, always do the frequency adjustment in the driver. 2. lirc presents pulses in microseconds, but the ir-spi driver treats them as cycles of the carrier. Similar to other lirc drivers, do the conversion with DIV_ROUND_CLOSEST(). Fixes: fe052da49201 ("[media] rc: add support for IR LEDs driven through SPI") Cc: stable@vger.kernel.org Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] mceusb: drop redundant urb reinitialisationJohan Hovold
Drop a since commit e1159cb35712 ("[media] mceusb: remove pointless mce_flush_rx_buffer function") redundant reinitialisation of two urb fields immediately after they have been initialised. Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] mceusb: fix memory leaks in error pathJohan Hovold
Fix urb and transfer-buffer leaks in an urb-submission error path which may be hit when a device is disconnected. Fixes: 66e89522aff7 ("V4L/DVB: IR: add mceusb IR receiver driver") Cc: stable <stable@vger.kernel.org> # 2.6.36 Cc: Jarod Wilson <jarod@redhat.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] tc358743: Add support for platforms without IRQ lineDave Stevenson
interrupts is listed as an optional property in the DT binding, but in reality the driver didn't work without it. The existing driver relied on having the interrupt line connected to the SoC to trigger handling various events. Add the option to poll the interrupt status register via a timer if no interrupt source is defined. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] tc358743: Setup default mbus_fmt before registeringDave Stevenson
Previously the mbus_fmt_code was set after the device was registered. If a connected sub-device called tc358743_get_fmt prior to that point it would get an invalid code back. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] tc358743: Add enum_mbus_codeDave Stevenson
There was no way to query the supported mbus formats from this driver. enum_mbus_code is the function to expose that, so implement it. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] cec: improve debug messagesHans Verkuil
- use __func__ instead of writing the full function name - drop debug message in cec_config_log_addr since the same information will be reported later - use debug level 1 for errors and infrequent events, use level 2 for debugging CEC message traffic - log when a transmit is retried, very useful to know when debugging - debug messages now all start with lower case Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] tc358743: Handle return value of clk_prepare_enableArvind Yadav
clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] v4l2-ctrls: Correctly destroy mutex in v4l2_ctrl_handler_free()Sakari Ailus
The mutex that was initialised in v4l2_ctrl_handler_init_class() was not destroyed in v4l2_ctrl_handler_free(). Do that. Additionally, explicitly refer to the ctrl handler's mutex in mutex initialisation for clarity. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] v4l2-ctrls.c: Implement unlocked variant of v4l2_ctrl_handler_setup()Sakari Ailus
Sometimes the caller is already holding the control handler mutex and using it to serialise something. Provide an unlocked variant of the same function to be used in those cases. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07[media] atmel-isi: code cleanupHugues Fruchet
Ensure that ISI is clocked before starting sensor sub device. Remove un-needed type check in try_fmt(). Use clamp() macro for hardware capabilities. Fix wrong tabulation to space. Signed-off-by: Hugues Fruchet <hugues.fruchet@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-07Merge tag 'media/v4.12-2' into patchworkMauro Carvalho Chehab
media fixes for v4.12-rc4 * tag 'media/v4.12-2': (598 commits) [media] rc-core: race condition during ir_raw_event_register() [media] cec: drop MEDIA_CEC_DEBUG [media] cec: rename MEDIA_CEC_NOTIFIER to CEC_NOTIFIER [media] cec: select CEC_CORE instead of depend on it [media] rainshadow-cec: ensure exit_loop is intialized [media] atomisp: don't treat warnings as errors Linux 4.12-rc3 x86/ftrace: Make sure that ftrace trampolines are not RWX x86/mm/ftrace: Do not bug in early boot on irqs_disabled in cpu_flush_range() selftests/ftrace: Add a testcase for many kprobe events kprobes/x86: Fix to set RWX bits correctly before releasing trampoline ftrace: Fix memory leak in ftrace_graph_release() ipv4: add reference counting to metrics net: ethernet: ax88796: don't call free_irq without request_irq first ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets sctp: fix ICMP processing if skb is non-linear net: llc: add lock_sock in llc_ui_bind to avoid a race condition PCI/msi: fix the pci_alloc_irq_vectors_affinity stub blk-mq: Only register debugfs attributes for blk-mq queues x86/timers: Move simple_udelay_calibration past init_hypervisor_platform ... Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] saa7164: fix double fetch PCIe access conditionSteven Toth
Avoid a double fetch by reusing the values from the prior transfer. Originally reported via https://bugzilla.kernel.org/show_bug.cgi?id=195559 Thanks to Pengfei Wang <wpengfeinudt@gmail.com> for reporting. Signed-off-by: Steven Toth <stoth@kernellabs.com> Reported-by: Pengfei Wang <wpengfeinudt@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] davinci: vpif_capture: fix default pixel format for BT.656/BT.1120 videoNori, Sekhar
For both BT.656 and BT.1120 video, the pixel format used by VPIF is Y/CbCr 4:2:2 in semi-planar format (Luma in one plane and Chroma in another). This corresponds to NV16 pixel format. This is documented in section 36.2.3 of OMAP-L138 Technical Reference Manual, SPRUH77A. The VPIF driver incorrectly sets the default format to V4L2_PIX_FMT_YUV422P. Fix it. Reported-by: Alejandro Hernandez <ajhernandez@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] coda: improve colorimetry handlingPhilipp Zabel
The hardware codec is not colorspace aware. We should trust userspace to set the correct colorimetry information on the OUTPUT queue and mirror the exact same setting on the CAPTURE queue. There is no reason to restrict colorspace to JPEG or REC709 only. Also, set the default colorspace, as returned by calling VIDIOC_TRY/S_FMT with V4L2_COLORSPACE_DEFAULT, initially. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] media: adv7180: add adv7180cp, adv7180st compatible stringsUlrich Hecht
Used to differentiate between models with 3 and 6 inputs. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] rcar-vin: fix bug in pixelformat selectionNiklas Söderlund
If the requested pixelformat is not supported fallback to the default format, do not revert the entire format. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] rcar-vin: add missing error check to propagate errorNiklas Söderlund
The return value of __rvin_try_format_source is not checked, add a check and propagate the error. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] rcar-vin: remove subdevice matching from bind and unbind callbacksNiklas Söderlund
There is only one subdevice registered with the async framework so there is no need for the driver to check which subdevice is bound or unbound. Remove these checks since the async framework preforms this. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> [hans.verkuil@cisco.com: fix typo: surce -> source] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] rcar-vin: refactor and fold in function after stall handling reworkNiklas Söderlund
With the driver stopping and starting the stream each time the driver is stalled rvin_capture_off() can be folded in to the only caller. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] rcar-vin: allow switch between capturing modes when stallingNiklas Söderlund
If userspace can't feed the driver with buffers as fast as the driver consumes them the driver will stop video capturing and wait for more buffers from userspace, the driver is stalled. Once it have been feed one or more free buffers it will recover from the stall and resume capturing. Instead of continue to capture using the same capture mode as before the stall allow the driver to choose between single and continuous mode based on free buffer availability. Do this by stopping capturing when the driver becomes stalled and restart capturing once it continues. By doing this the capture mode will be evaluated each time the driver is recovering from a stall. This behavior is needed to fix a bug where continuous capturing mode is used, userspace is about to stop the stream and is waiting for the last buffers to be returned from the driver and is not queuing any new buffers. In this case the driver becomes stalled when there are only 3 buffers remaining streaming will never resume since the driver is waiting for userspace to feed it more buffers before it can continue streaming. With this fix the driver will then switch to single capture mode for the last 3 buffers and a deadlock is avoided. The issue can be demonstrated using yavta. $ yavta -f RGB565 -s 640x480 -n 4 --capture=10 /dev/video22 Device /dev/video22 opened. Device `R_Car_VIN' on `platform:e6ef1000.video' (driver 'rcar_vin') supports video, capture, without mplanes. Video format set: RGB565 (50424752) 640x480 (stride 1280) field interlaced buffer size 614400 Video format: RGB565 (50424752) 640x480 (stride 1280) field interlaced buffer size 614400 4 buffers requested. length: 614400 offset: 0 timestamp type/source: mono/EoF Buffer 0/0 mapped at address 0xb6cc7000. length: 614400 offset: 614400 timestamp type/source: mono/EoF Buffer 1/0 mapped at address 0xb6c31000. length: 614400 offset: 1228800 timestamp type/source: mono/EoF Buffer 2/0 mapped at address 0xb6b9b000. length: 614400 offset: 1843200 timestamp type/source: mono/EoF Buffer 3/0 mapped at address 0xb6b05000. 0 (0) [-] interlaced 0 614400 B 38.240285 38.240303 12.421 fps ts mono/EoF 1 (1) [-] interlaced 1 614400 B 38.282329 38.282346 23.785 fps ts mono/EoF 2 (2) [-] interlaced 2 614400 B 38.322324 38.322338 25.003 fps ts mono/EoF 3 (3) [-] interlaced 3 614400 B 38.362318 38.362333 25.004 fps ts mono/EoF 4 (0) [-] interlaced 4 614400 B 38.402313 38.402328 25.003 fps ts mono/EoF 5 (1) [-] interlaced 5 614400 B 38.442307 38.442321 25.004 fps ts mono/EoF 6 (2) [-] interlaced 6 614400 B 38.482301 38.482316 25.004 fps ts mono/EoF 7 (3) [-] interlaced 7 614400 B 38.522295 38.522312 25.004 fps ts mono/EoF 8 (0) [-] interlaced 8 614400 B 38.562290 38.562306 25.003 fps ts mono/EoF <blocks forever, waiting for the last buffer> This fix also allow the driver to switch to single capture mode if userspace doesn't feed it buffers fast enough. Or the other way around, if userspace suddenly feeds the driver buffers faster it can switch to continues capturing mode. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] rcar-vin: select capture mode based on free buffersNiklas Söderlund
Instead of selecting single or continuous capture mode based on how many buffers userspace intends to give us select capture mode based on number of free buffers we can allocate to hardware when the stream is started. This change is a prerequisite to enable the driver to switch from continuous to single capture mode (or the other way around) when the driver is stalled by userspace not feeding it buffers as fast as it consumes it. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] rcar-vin: move functions which acts on hardwareNiklas Söderlund
This only moves whole structs, defines and functions around, no code is changed inside any function. The reason for moving this code around is to prepare for refactoring and fixing of a start/stop stream bug without having to use forward declarations. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>