There isn't an ioctl to enum the supported field orders, so a user-space
application can call VIDIOC_TRY_FMT using different field orders to know
if one is supported. For example, GStreamer does this so during playback
dozens of the following messages appear in the kernel log buffer:

[ 442.143393] Not supported field order(4)

Instead of printing this as an error, just keep it as debug information.
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

It is likely that a "of_node_put(ep)" is missing here.
There is one in the previous error handling code, and one a few lines
below in the normal case as well.
Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The Freescale provided imx-vpu looks for firmware files under /lib/firmware/vpu
by default. Make coda look there for firmware files to ease the update path.

Cc: Fabio Estevam <festevam@gmail.com>
Signed-off-by: NBaruch Siach <baruch@tkos.co.il>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Using %4s to format f->fmt.pix_mp.pixelformat in fdp1_try_fmt() and
fdp1_s_fmt() may lead to more characters being printed (when the byte
following field pixelformat is not zero).

Add ".4" to the format specifier to limit the number of printed
characters to four. The resulting format specifier "%4.4s" is also used
by other media drivers to print pixelformat value.
Signed-off-by: NNicolas Iooss <nicolas.iooss_linux@m4x.org>
Reviewed-by: NKieran Bingham <kieran@bingham.xyz>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Check for v4l2_subdev_ops structures that are only passed as an
argument to the function v4l2_subdev_init. This argument is of type
const, so v4l2_subdev_ops structures having this property can also  be
declared const.
Done using Coccinelle:

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct v4l2_subdev_ops i@p = {...};

@ok1@
identifier r1.i;
position p;
@@
v4l2_subdev_init(...,&i@p)

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct v4l2_subdev_ops i;

File size before:
   text	   data	    bss	    dec	    hex	filename
  17171	   1912	     20	  19103	   4a9f
platform/s3c-camif/camif-capture.o

File size after:
   text	   data	    bss	    dec	    hex	filename
  17235	   1848	     20	  19103	   4a9f
platform/s3c-camif/camif-capture.o
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Acked-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Use the vb2 ioctl handler directly.
Signed-off-by: NLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: NJacopo Mondi <jacopo@jmondi.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

v4l2_subdev_{core/pad/video}_ops structures are stored in the
fields of the v4l2_subdev_ops structure which are of type const.
Also, v4l2_subdev_ops structure is passed to a function
having its argument of type const. As these structures are never
modified, so declare them as const.
Done using Coccinelle: (One of the scripts used)

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct v4l2_subdev_video_ops i@p = {...};

@ok1@
identifier r1.i;
position p;
struct v4l2_subdev_ops obj;
@@
obj.video=&i@p;

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct v4l2_subdev_video_ops i;

File size before:
   text	   data	    bss	    dec	    hex	filename
   6170	   2752	    144	   9066	   236a media/platform/xilinx/xilinx-tpg.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   6666	   2384	      8	   9058	   2362 media/platform/xilinx/xilinx-tpg.o
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Function bdisp_debugfs_create() returns 0 even on errors. So its caller
cannot detect the errors. It may be better to return "-ENOMEM" on the
exception paths.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188801Signed-off-by: NPan Bian <bianpan2016@163.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Also remove the code using size-0 OUTPUT buffer to flush.
Signed-off-by: NTiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: NWu-Cheng Li <wuchengli@chromium.org>
Reviewed-by: NKuang-che Wu <kcwu@chromium.org>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The check assumes that we end on zero but actually we end on -1.  Change
the post-op to a pre-op so that we do end on zero.  Techinically now we
only loop 499 times instead of 500 but that's fine.

Fixes: dc12b124 ("[media] media: ti-vpe: vpdma: Add abort channel desc and cleanup APIs")
Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com>
Acked-by: NBenoit Parrot <bparrot@ti.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Fix to avoid possible memory leak if the decoder initialization got failed.
Free the allocated memory for file handle object before return in case
decoder initialization fails.
Signed-off-by: NShailendra Verma <shailendra.v@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

As reported by gcc:

drivers/media/platform/sti/hva/hva-v4l2.c:227:6: warning: no previous prototype for 'hva_dbg_summary' [-Wmissing-prototypes]
 void hva_dbg_summary(struct hva_ctx *ctx)
      ^~~~~~~~~~~~~~~

This function is used only internally, so make it static.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This patch creates 4 static debugfs entries to dump:
- the device-related information ("st-hva/device")
- the list of registered encoders ("st-hva/encoders")
- the current values of the hva registers ("st-hva/regs")
- the information about the last closed instance ("st-hva/last")

It also creates dynamically a debugfs entry for each opened instance,
("st-hva/<instance identifier>") to dump:
- the information about the frame (format, resolution)
- the information about the stream (format, profile, level,
  resolution)
- the control parameters (bitrate mode, framerate, GOP size...)
- the potential (system, encoding...) errors
- the performance information about the encoding (HW processing
  duration, average bitrate, average framerate...)
Each time a running instance is closed, its context (including the
debug information) is saved to feed, on demand, the last closed
instance debugfs entry.
Signed-off-by: NYannick Fertre <yannick.fertre@st.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NJean-Christophe Trotin <jean-christophe.trotin@st.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

This patch adds a short summary about the encoding operation at each
instance closing, for debug purpose (through dev_dbg()):
- information about the frame (format, resolution)
- information about the stream (format, profile, level, resolution)
- number of encoded frames
- potential (system, encoding...) errors
Signed-off-by: NYannick Fertre <yannick.fertre@st.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NJean-Christophe Trotin <jean-christophe.trotin@st.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Despite checkpatch comments, it seems that ARM doesn't like
to use constified structs.

As reported by kernel build robot:

 In file included from drivers/media/platform/coda/imx-vdoa.c:22:0:
   drivers/media/platform/coda/imx-vdoa.c: In function 'vdoa_driver_init':
>> include/linux/device.h:1461:20: warning: passing argument 1 of '__platform_driver_register' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
     return __register(&(__driver) , ##__VA_ARGS__); \
                       ^
   include/linux/platform_device.h:198:29: note: in definition of macro 'platform_driver_register'
     __platform_driver_register(drv, THIS_MODULE)
                                ^~~
   include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
     module_driver(__platform_driver, platform_driver_register, \
     ^~~~~~~~~~~~~
>> drivers/media/platform/coda/imx-vdoa.c:333:1: note: in expansion of macro 'module_platform_driver'
    module_platform_driver(vdoa_driver);
    ^~~~~~~~~~~~~~~~~~~~~~
   include/linux/platform_device.h:199:12: note: expected 'struct platform_driver *' but argument is of type 'const struct platform_driver *'
    extern int __platform_driver_register(struct platform_driver *,
               ^~~~~~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/media/platform/coda/imx-vdoa.c:18:0:
   drivers/media/platform/coda/imx-vdoa.c: In function 'vdoa_driver_exit':
>> include/linux/device.h:1466:15: warning: passing argument 1 of 'platform_driver_unregister' discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
     __unregister(&(__driver) , ##__VA_ARGS__); \
                  ^
   include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver'
     module_driver(__platform_driver, platform_driver_register, \
     ^~~~~~~~~~~~~
>> drivers/media/platform/coda/imx-vdoa.c:333:1: note: in expansion of macro 'module_platform_driver'
    module_platform_driver(vdoa_driver);
    ^~~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/media/platform/coda/imx-vdoa.c:22:0:
   include/linux/platform_device.h:201:13: note: expected 'struct platform_driver *' but argument is of type 'const struct platform_driver *'
    extern void platform_driver_unregister(struct platform_driver *);
                ^~~~~~~~~~~~~~~~~~~~~~~~~~

So, let's just remove it.

This reverts commit 126f52b0.
Reported-by: Nkbuild test robot <fengguang.wu@intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Both functions initialize the file handle with v4l2_fh_init() and thus
need to call clean up with v4l2_fh_exit() as appropriate. Fix it.
Signed-off-by: NShailendra Verma <shailendra.v@samsung.com>
Signed-off-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

v4l2_subdev_{core/pad/video}_ops structures are stored in the
fields of the v4l2_subdev_ops structure which are of type const.
Also, v4l2_subdev_ops structure is passed to a function
having its argument of type const. As these structures are never
modified, so declare them as const.
Done using Coccinelle:(one of the scripts used)

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct v4l2_subdev_ops i@p = {...};

@ok1@
identifier r1.i;
position p;
expression e1;
@@
v4l2_subdev_init(e1,&i@p)

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct v4l2_subdev_ops i;

File size before:
   text	   data	    bss	    dec	    hex	filename
  16830	   1064	      0	  17894	   45e6 platform/exynos4-is/fimc-capture.o
   7787	    704	     20	   8511	   213f platform/exynos4-is/mipi-csis.o

File size after:
   text	   data	    bss	    dec	    hex	filename
  17022	    880	      0	  17902	   45ee platform/exynos4-is/fimc-capture.o
   8299	    192	     20	   8511	   213f platform/exynos4-is/mipi-csis.o
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Free memory mapping, if fimc_is_probe is not successful.
Signed-off-by: NArvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Commit a006c04e ("[media] exynos-gsc: Fixup clock management at
->remove()") changed the driver's .remove function logic to fist do
a pm_runtime_get_sync() to make sure the device is powered before
attempting to gate the gsc clock.

But the commit also removed a pm_runtime_disable() call that leads
to an unbalanced pm_runtime_enable() error if the driver is removed
and re-probed:

exynos-gsc 13e00000.video-scaler: Unbalanced pm_runtime_enable!
exynos-gsc 13e10000.video-scaler: Unbalanced pm_runtime_enable!

Fixes: a006c04e ("[media] exynos-gsc: Fixup clock management at ->remove()")
Signed-off-by: NJavier Martinez Canillas <javier@osg.samsung.com>
Acked-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The file handle is not yet added in the vfd list. So no need
to call v4l2_fh_del(&ctx->fh) if it fails to create controls.
Signed-off-by: NShailendra Verma <shailendra.v@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The file handle is not yet added in the vfd list. So no need
to call v4l2_fh_del(&ctx->fh) if it fails to create controls.
Signed-off-by: NShailendra Verma <shailendra.v@samsung.com>
Signed-off-by: NSylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The VDOA is able to transform the NV12 custom macroblock tiled format of
the CODA to YUYV format. If and only if the VDOA is available, the
driver can also provide YUYV support.

While the driver is configured to produce YUYV output, the CODA must be
configured to produce NV12 macroblock tiled frames and the VDOA must
transform the intermediate result into the final YUYV output.
Signed-off-by: NMichael Tretter <m.tretter@pengutronix.de>
Reviewed-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

If the CODA driver is configured to produce NV12 output and the VDOA is
available, the VDOA can be used to transform the custom macroblock tiled
format to a raster-ordered format for scanout.

In this case, set the output format of the CODA to the custom macroblock
tiled format, disable the rotator, and use the VDOA to write to the v4l2
buffer. The VDOA is synchronized with the CODA to always un-tile the
frame that the CODA finished in the previous run.
Signed-off-by: NMichael Tretter <m.tretter@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

display_idx refers to the frame that will be returned in the next round.
The currently processed frame is ctx->display_idx and errors should be
reported for this frame.
Signed-off-by: NMichael Tretter <m.tretter@pengutronix.de>
Acked-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

In order to make the VDOA work correctly, the CODA must produce frames
in tiled format. Print this information in the debug output.

Also print the color format in fourcc instead of the numeric value.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NMichael Tretter <m.tretter@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Correctly store the rectangle of valid video data in the destination
q_data before rounding up to macroblock size. This fixes the output
of VIDIOC_G_SELECTION for the capture side compose rectangle.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: NMichael Tretter <m.tretter@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

As warned by checkpatch:

	WARNING: struct of_device_id should normally be const
	#318: FILE: drivers/media/platform/coda/imx-vdoa.c:318:
	+static struct of_device_id vdoa_dt_ids[] = {

So, constify structs.
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The i.MX6 Video Data Order Adapter's (VDOA) sole purpose is to convert
from a custom macroblock tiled format produced by the CODA960 decoder
into linear formats that can be used for scanout.
Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: NMichael Tretter <m.tretter@pengutronix.de>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add basic support for initialization via DT
Signed-off-by: NKevin Hilman <khilman@baylibre.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Video capture subdevs may be over I2C and may sleep during xfer, so we
cannot do IRQ-disabled locking when calling the subdev.

The IRQ-disabled locking is meant to protect the DMA queue list
throughout the rest of the driver, so update the locking in
[start|stop]_streaming to protect just this list, and update the irqlock
comment to reflect what it actually protects.
Suggested-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NKevin Hilman <khilman@baylibre.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Remove hard-coded I2C adapter in favor of getting the
ID from platform_data.
Signed-off-by: NKevin Hilman <khilman@baylibre.com>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Fix problems with automatic module loading by adding MODULE_ALIAS.  Also
fix various load-time errors cause by incorrect or not present
platform_data.
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NKevin Hilman <khilman@baylibre.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Fix to avoid possible memory leak and exit file handle
in error paths.
Signed-off-by: NSantosh Kumar Singh <kumar.san1093@gmail.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Prepare to mark sensitive kernel structures for randomization by making
sure they're using designated initializers. These were identified during
allyesconfig builds of x86, arm, and arm64, with most initializer fixes
extracted from grsecurity.
Signed-off-by: NKees Cook <keescook@chromium.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

In vpfe_s_fmt(), when the sensor format and the requested format were
the same, bpp was assigned to vpfe->bpp without being initialized first.

Grab the bpp value that is currently used by using __vpfe_get_format()
instead of its wrapper, vpfe_try_fmt().

This use of uninitialized variable has been found by compiling the
kernel with clang.

Fixes: 417d2e50 ("[media] media: platform: add VPFE capture driver
support for AM437X")

Cc: stable@vger.kernel.org
Signed-off-by: NNicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

Add 3840x2160 as valid resolution for the webcam capture input and
adjust the webcam intervals accordingly.
Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

v4l2_subdev_{core/video}_ops structures are stored in the
fields of the v4l2_subdev_ops structure which are of type const.
Also, v4l2_subdev_ops structure is passed to a function
having its argument of type const. As these structures are never
modified, so declare them as const.
Done using Coccinelle:(One of the scripts)

@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct v4l2_subdev_core_ops i@p = {...};

@ok1@
identifier r1.i;
position p;
struct v4l2_subdev_ops obj;
@@
obj.core=&i@p;

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct v4l2_subdev_core_ops i;

File size before:
    text   data	    bss	    dec	    hex	filename
    858	    576	      0	   1434	    59a soc_camera/soc_camera_platform.o

File size after:
  text	   data	    bss	    dec	    hex	filename
   1234	    192	      0	   1426	    592 soc_camera/soc_camera_platform.o
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Signed-off-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The function has a local variable that points to the media device; use
that instead of finding the media device under the entity.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The function has a local variable that points to the media device; use
that instead of finding the media device under the entity.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

The media_entity_pipeline_start() and media_entity_pipeline_stop()
functions are renamed as media_pipeline_start() and media_pipeline_stop(),
respectively. The reason is two-fold: the pipeline struct is, rightly,
already called media_pipeline (rather than media_entity_pipeline) and what
this really is about is a pipeline. A pipeline consists of entities ---
and, well, other objects embedded in these entities.

As the pipeline object will be in the future moved from entities to pads
in order to support multiple pipelines through a single entity, do the
renaming now.

Similarly, functions operating on struct media_entity_graph as well as the
struct itself are renamed by dropping the "entity_" part from the prefix
of the function family and the data structure. The graph traversal which
is what the functions are about is not specifically about entities only
and will operate on pads for the same reason as the media pipeline.

The patch has been generated using the following command:

git grep -l media_entity |xargs perl -i -pe '
	s/media_entity_pipeline/media_pipeline/g;
	s/media_entity_graph/media_graph/g'

And a few manual edits related to line start alignment and line wrapping.
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>