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path: root/drivers/media
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2019-01-16media: gspca: ov534-ov772x: remove unnecessary COM3 initializationPhilipp Zabel
The COM3 register at address 0x0c already defaults to 0x10, the two bits COM3[7:6] are set according to V4L2 controls by sethvflip later. There is no need to set it multiple times during bridge initialization. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: gspca: ov534-ov722x: remove camera clock setup from bridge_initPhilipp Zabel
This register is later overwritten by set_frame_rate anyway. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: gspca: ov534-ov722x: remove mode specific video data registers from ↵Philipp Zabel
bridge_init The video format, payload size, and frame size setup is video format and frame size specific. Those registers are overwritten during bridge_start anyway. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: gspca: ov534-ov772x: add SGBRG8 bayer mode supportPhilipp Zabel
Add support to pass through the sensor's native SGBRG8 bayer pattern, allowing to cut the required USB bandwidth in half. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: gspca: ov543-ov772x: move video format specific registers into ↵Philipp Zabel
bridge_start In preparation for adding SGBRG8 as a second video format besides YUYV, move video format specific register settings from the bridge_init array into the bridge_start arrays. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: gspca: support multiple pixel formats in TRY_FMTPhilipp Zabel
If a driver supports multiple pixel formats with the same frame size, TRY_FMT will currently always return the first pixel format. Fix this by adding pixelformat support to wxh_to_nearest_mode(). Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: gspca: support multiple pixel formats in ENUM_FRAMEINTERVALSPhilipp Zabel
If a driver supports multiple pixel formats with the same frame size, ENUM_FRAMEINTERVALS will currently only work for the first pixel format. Fix this by adding pixelformat support to wxh_to_mode(). Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: gspca: ov534: replace msleep(10) with usleep_rangePhilipp Zabel
For short waits, usleep_range should be used instead of msleep, see Documentation/timers/timers-howto.txt. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: vim2m: the v4l2_m2m_buf_copy_data args were swappedHans Verkuil
The buffer arguments to v4l2_m2m_buf_copy_data args were swapped. The reason is confusing naming conventions in vim2m. It certainly could be improved. Fixes: 7aca565ee3d0 ("media: vim2m: use v4l2_m2m_buf_copy_data") Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: vivid: do not implement VIDIOC_S_PARM for output streamsHans Verkuil
v4l2_compliance gave a warning for the S_PARM test for output streams: warn: v4l2-test-formats.cpp(1235): S_PARM is supported for buftype 2, but not for ENUM_FRAMEINTERVALS The reason is that vivid mapped s_parm for output streams to g_parm. But if S_PARM doesn't actually change anything, then it shouldn't be enabled at all. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: vivid: take data_offset into account for video outputHans Verkuil
The video output sizeimage calculation did not take data_offset into account. This can cause problems with video loopback or exporting output buffers for use as dmabuf import buffers since the output buffer size is now too small. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: vivid: disable VB2_USERPTR if dma_contig was configuredHans Verkuil
It makes no sense to support the USERPTR memory model if the vivid instance was configured as dma_contig. Disable it if this is the case. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: ipu3-cio2, dw9714: Remove Jian Xu's e-mailSakari Ailus
Jian Xu has left the company. Remove his e-mail address that no longer works. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: sun6i: Add H3 compatibleChen-Yu Tsai
The CSI controller found on the H3 (and H5) is a reduced version of the one found on the A31. It only has 1 channel, instead of 4 channels for time-multiplexed BT.656. Since the H3 is a reduced version, it cannot "fallback" to a compatible that implements more features than it supports. Add a compatible string entry for the H3. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: ov9640: Wrap long and unwrap short lines, align wrapped lines correctlySakari Ailus
Some little style fixup work. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: i2c: ov9640: fix missing error handling in probePetr Cvek
Control handlers registration lacked error path with v4l2_ctrl_handler_free() call. Fix it by using goto to alread existing v4l2_ctrl_handler_free() call. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: i2c: ov9640: make array of supported formats constantPetr Cvek
An array which defines sensor's supported formats is not written anywhere, so it can be constant. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: i2c: ov9640: add space before return for better clarityPetr Cvek
Some returns were adjoined to unrelated code blocks. This patch adds a space inbetween. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: i2c: ov9640: change array index or length variables to unsignedPetr Cvek
The driver uses variables to store frame resolutions and to indexing various arrays. These should be unsigned. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: i2c: ov9640: add missing SPDX identifiersPetr Cvek
Add missing SPDX identifiers to .c and .h files of the sensor driver. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: i2c: ov9640: drop soc_camera code and switch to v4l2_asyncPetr Cvek
This patch removes the dependency on an obsoleted soc_camera from ov9640 driver and changes the code to be a standalone v4l2 async subdevice. It also adds GPIO allocations for power and reset signals (as they are not handled by soc_camera now). The values for waiting on GPIOs (reset and power) settling down were taken from the datasheet (> 1 ms after HW/SW reset). The upper limit was chosen as an arbitrary value. Also one occurrence of mdelay() was changed to msleep(). The delays were successfully tested on a real hardware. The patch makes ov9640 sensor again compatible with the pxa_camera driver. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: soc_camera: ov9640: move ov9640 out of soc_cameraPetr Cvek
Initial part of ov9640 transition from soc_camera subsystem to a standalone v4l2 subdevice. The soc_camera version seems to be used only in Palm Zire72 and in (the future) HTC Magician. On these two devices the support is broken as pxa_camera driver doesn't use soc_camera anymore. The other mentions from git grep are "TODOs" (in board-osk.c) or chip names for unsupported sensors on HW which doesn't use soc_camera at all (irelevant). Copy the driver files from soc_camera and mark the original ones in the Kconfig description as obsoleted. Add config option VIDEO_OV9640 to the build files in drivers/media/i2c. Signed-off-by: Petr Cvek <petrcvekcz@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: v4l2: i2c: ov7670: Fix PLL bypass register valuesJacopo Mondi
The following commits: commit f6dd927f34d6 ("[media] media: ov7670: calculate framerate properly for ov7675") commit 04ee6d92047e ("[media] media: ov7670: add possibility to bypass pll for ov7675") introduced the ability to bypass PLL multiplier and use input clock (xvclk) as pixel clock output frequency for ov7675 sensor. PLL is bypassed using register DBLV[7:6], according to ov7670 and ov7675 sensor manuals. Macros used to set DBLV register seem wrong in the driver, as their values do not match what reported in the datasheet. Fix by changing DBLV_* macros to use bits [7:6] and set bits [3:0] to default 0x0a reserved value (according to datasheets). While at there, remove a write to DBLV register in "ov7675_set_framerate()" that over-writes the previous one to the same register that takes "info->pll_bypass" flag into account instead of setting PLL multiplier to 4x unconditionally. And, while at there, since "info->pll_bypass" is only used in set/get_framerate() functions used by ov7675 only, it is not necessary to check for the device id at probe time to make sure that when using ov7670 "info->pll_bypass" is set to false. Fixes: f6dd927f34d6 ("[media] media: ov7670: calculate framerate properly for ov7675") Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: ov5640: Add RAW bayer format supportLoic Poulain
OV5640 sensor supports raw image output (bayer). Configure ISP mux/format registers accordingly. Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: ov2640: set all mbus format field when G_FMT and S_FMT ioctlsAkinobu Mita
This driver doesn't set all members of mbus format field when the VIDIOC_SUBDEV_{S,G}_FMT ioctls are called. This is detected by v4l2-compliance. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: ov2640: make VIDIOC_SUBDEV_G_FMT ioctl work with V4L2_SUBDEV_FORMAT_TRYAkinobu Mita
The VIDIOC_SUBDEV_G_FMT ioctl for this driver doesn't recognize V4L2_SUBDEV_FORMAT_TRY and always works as if V4L2_SUBDEV_FORMAT_ACTIVE is specified. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: ov2640: set default window and format code at probe timeAkinobu Mita
Set default window and format code at probe time instead of always checking if they have not been set yet when VIDIOC_SUBDEV_G_FMT ioctl is called. This change simplifies the next patch (make VIDIOC_SUBDEV_G_FMT ioctl work with V4L2_SUBDEV_FORMAT_TRY). Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: imx274: fix wrong order in test pattern menusLuca Ceresoli
The description of test patterns 11 and 12 are swapped. Checked against the live sensor. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: ipu3-cio2: Allow probe to succeed if there are no sensors connectedSakari Ailus
The device won't be powered off on systems that have no sensors connected unless it has a driver bound to it. Allow that to happen even if there are no sensors connected to cio2. Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com> Tested-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART_INTERVALPawe? Chmiel
This commit corrects max and step values for v4l2 control for V4L2_CID_JPEG_RESTART_INTERVAL. Max should be 0xffff and step should be 1. It was found by using v4l2-compliance tool and checking result of VIDIOC_QUERY_EXT_CTRL/QUERYMENU test. Previously it was complaining that step was bigger than difference between max and min. Fixes: 15f4bc3b1f42 ("[media] s5p-jpeg: Add JPEG controls support") Signed-off-by: Pawe? Chmiel <pawel.mikolaj.chmiel@gmail.com> Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: saa7146: make use of i2c_8bit_addr_from_msgPeter Rosin
Because it looks neater. Signed-off-by: Peter Rosin <peda@axentia.se> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: rcar-csi2: Add support for RZ/G2EFabrizio Castro
According to the RZ/G2 User's manual, RZ/G2E and R-Car E3 CSI-2 blocks are identical, therefore use R-Car E3 definitions to add RZ/G2E support. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: rcar-vin: Add support for RZ/G2EFabrizio Castro
According to the RZ/G2 User's manual, RZ/G2E and R-Car E3 VIN blocks are identical, therefore use R-Car E3 definitions to add RZ/G2E support. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: i2c: adv748x: configure number of lanes used for TXA CSI-2 transmitterNiklas Söderlund
The driver fixed the TXA CSI-2 transmitter in 4-lane mode while it could operate using 1-, 2- and 4-lanes. Update the driver to support all available modes. The driver makes use of large tables of static register/value writes when powering up/down the TXA and TXB transmitters which include the write to the NUM_LANES register. By converting the tables into functions and using parameters the power up/down functions for TXA and TXB power up/down can be merged and used for both transmitters. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: i2c: adv748x: store number of CSI-2 lanes described in device treeNiklas Söderlund
The adv748x CSI-2 transmitters TXA and TXB can use different number of lanes to transmit data. In order to be able to configure the device correctly this information need to be parsed from device tree and stored in each TX private data structure. TXA supports 1, 2 and 4 lanes while TXB supports 1 lane. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: i2c: adv748x: reuse power up sequence when initializing CSI-2Niklas Söderlund
Extend the MIPI CSI-2 power up sequence to match the power up sequence in the hardware manual chapter "9.5.1 Power Up Sequence". This change allows the power up functions to be reused when initializing the hardware reducing code duplicating as well aligning with the documentation. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo+renesas@jmondi.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: dvb: Add check on sp8870_readregAditya Pakki
In sp8870_set_frontend_parameters, the function sp8870_readreg may return an error when i2c_transfer fails. The fix checks for this error and returns upstream consistent with other invocations. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: dvb: add return value check on Write16Aditya Pakki
Write16 can return an error code -1 when the i2c_write fails. The fix checks for these failures and returns the error upstream Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: secocec: fix ir address shiftEttore Chimenti
The actual value of the RC5 System Number (address) is stored in the IR_READ_DATA common register masked with 0x1F00 so it have to be shifted by 8 bits. Signed-off-by: Ettore Chimenti <ek5.chimenti@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: cxd2880-spi: fix two memory leaks of dvb_spiColin Ian King
There are two return paths that do not kfree dvb_spi. Fix the memory leaks by returning via the exit label fail_adapter that will free dvi_spi. Detected by CoverityScan, CID#1475991 ("Resource Leak") Fixes: cb496cd472af ("media: cxd2880-spi: Add optional vcc regulator") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com>? Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: mt312: fix a missing check of mt312 resetKangjie Lu
mt312_reset() may fail. Although it is called in the end of mt312_set_frontend(), we better check its status and return its error code upstream instead of 0. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Reviewed-by: Matthias Schwarzott <zzam@gentoo.org> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: lgdt3306a: fix a missing check of return valueKangjie Lu
If lgdt3306a_read_reg() fails, the read data in "val" is incorrect, thus shouldn't be further used. The fix inserts a check for the return value of lgdt3306a_read_reg(). If it fails, goto fail. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: seco-cec: fix RC_CORE dependencyArnd Bergmann
All other drivers that need RC_CORE have a dependency rather than using 'select', so we should do the same here to avoid circular dependencies as well as this warning about missing dependencies: WARNING: unmet direct dependencies detected for RC_CORE Depends on [n]: INPUT [=n] Selected by [y]: - VIDEO_SECO_RC [=y] && MEDIA_SUPPORT [=y] && CEC_PLATFORM_DRIVERS [=y] && VIDEO_SECO_CEC [=y] Fixes: daef95769b3a ("media: seco-cec: add Consumer-IR support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: rcar-vin: remove unneeded locking in async callbacksNiklas Söderlund
The locking implemented in the async notifier callbacks are unnecessary as the global list_lock in v4l2-async.c is held whenever one of the callbacks are called. The locking in itself is not harmful however it produces a LOCKDEP warning between the global v4l2-async list_lock and the rcar-vin local locking schema. Remove the rcar-vin locking for the async callbacks to reduce complexity and silent the false LOCKDEP warning. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: tw9910: add helper function for setting gpiod valueAlexey Khoroshilov
tw9910 driver tries to sleep for the same period of time after each gpiod_set_value(). The patch moves duplicated code to a helper function. Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: tw9910: fix failure handling in tw9910_power_on()Alexey Khoroshilov
If gpiod_get_optional() fails in tw9910_power_on(), clk is left undisabled. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: s5p-jpeg: Check for fmt_ver_flag when doing fmt enumerationPawe? Chmiel
Previously when doing format enumeration, it was returning all formats supported by driver, even if they're not supported by hw. Add missing check for fmt_ver_flag, so it'll be fixed and only those supported by hw will be returned. Similar thing is already done in s5p_jpeg_find_format. It was found by using v4l2-compliance tool and checking result of VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS test and using v4l2-ctl to get list of all supported formats. Tested on s5pv210-galaxys (Samsung i9000 phone). Fixes: bb677f3ac434 ("[media] Exynos4 JPEG codec v4l2 driver") Signed-off-by: Pawe? Chmiel <pawel.mikolaj.chmiel@gmail.com> Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> [hverkuil-cisco@xs4all.nl: fix a few alignment issues] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: gspca: mt9m111: Check write_bridge for timeoutAditya Pakki
In mt9m111_probe, m5602_write_bridge can timeout and return a negative error value. The fix checks for this error and passes it upstream. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: gspca: Check the return value of write_bridge for timeoutAditya Pakki
In po1030_probe(), m5602_write_bridge() can timeout and return an error value. The fix checks for the return value and propagates upstream consistent with other usb drivers. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: usb: gspca: add a missed check for goto_low_powerKangjie Lu
The fix checks if goto_low_power() fails, and if so, issues an error message. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>