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path: root/drivers/media/platform/s5p-g2d/g2d.c
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2017-08-27media: platform: make video_device constBhumika Goyal1-1/+1
Make these const as they are only used during a copy operation. Done using Coccinelle: @match disable optional_qualifier@ identifier s; @@ static struct video_device s = {...}; @ref@ position p; identifier match.s; @@ s@p @good1@ identifier match.s; expression list[3] es; position ref.p; @@ cx88_vdev_init(es,&s@p,...) @good2@ position ref.p; identifier match.s,f,c; expression e; @@ ( e = s@p | e = s@p.f | c(...,s@p.f,...) | c(...,s@p,...) ) @bad depends on !good1 && !good2@ position ref.p; identifier match.s; @@ s@p @depends on forall !bad disable optional_qualifier@ identifier match.s; @@ static + const struct video_device s; Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20media: s5p-g2d: constify v4l2_m2m_ops structuresJulia Lawall1-1/+1
The v4l2_m2m_ops structures are only passed as the only argument to v4l2_m2m_init, which is declared as const. Thus the v4l2_m2m_ops structures themselves can be const. Done with the help of Coccinelle. // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct v4l2_m2m_ops i@p = { ... }; @ok1@ identifier r.i; position p; @@ v4l2_m2m_init(&i@p) @bad@ position p != {r.p,ok1.p}; identifier r.i; struct v4l2_m2m_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct v4l2_m2m_ops i = { ... }; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-05[media] s5p-g2d: Fix error handlingChristophe JAILLET1-1/+1
According to the surrounding goto, it is likely that 'unprep_clk_gate' was expected here. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-19[media] platform: constify vb2_ops structuresJulia Lawall1-1/+1
Check for vb2_ops structures that are only stored in the ops field of a vb2_queue structure. That field is declared const, so vb2_ops structures that have this property can be declared as const also. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct vb2_ops i@p = { ... }; @ok@ identifier r.i; struct vb2_queue e; position p; @@ e.ops = &i@p; @bad@ position p != {r.p,ok.p}; identifier r.i; struct vb2_ops e; @@ e@i@p @depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct vb2_ops i = { ... }; // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com> Reviewed-by: Jacek Anaszewski <j.anaszewski@samsung.com> Reviewed-by: Benoit Parrot <bparrot@ti.com> [hans.verkuil@cisco.com: dropped soc_camera/rcar_vin.c patch because that driver will be removed] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08[media] vb2: replace void *alloc_ctxs by struct device *alloc_devsHans Verkuil1-1/+1
Make this a proper typed array. Drop the old allocate context code since that is no longer used. Note that the memops functions now get a struct device pointer instead of the struct device ** that was there initially (actually a void pointer to a struct containing only a struct device pointer). This code is now a lot cleaner. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08[media] media/platform: convert drivers to use the new vb2_queue dev fieldHans Verkuil1-10/+3
Stop using alloc_ctx and just fill in the device pointer. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-03media: set proper max seg size for devices on Exynos SoCsMarek Szyprowski1-0/+2
All multimedia devices found on Exynos SoCs support only contiguous buffers, so set DMA max segment size to DMA_BIT_MASK(32) to let memory allocator to correctly create contiguous memory mappings. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2016-04-13[media] s5p-g2d: remove non-device-tree init codeMarek Szyprowski1-22/+5
Exynos and Samsung S5P platforms has been fully converted to device tree, so old platform device based init data can be now removed. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18[media] media: videobuf2: Move timestamp to vb2_bufferJunghak Sung1-1/+1
Move timestamp from struct vb2_v4l2_buffer to struct vb2_buffer for common use, and change its type to u64 in order to handling y2038 problem. This patch also includes all device drivers' changes related to this restructuring. Signed-off-by: Junghak Sung <jh1009.sung@samsung.com> Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com> Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18[media] vb2: drop v4l2_format argument from queue_setupHans Verkuil1-1/+1
The queue_setup callback has a void pointer that is just for V4L2 and is the pointer to the v4l2_format struct that was passed to VIDIOC_CREATE_BUFS. The idea was that drivers would use the information from that struct to buffers suitable for the requested format. After the vb2 split series this pointer is now a void pointer, which is ugly, and the reality is that all existing drivers will effectively just look at the sizeimage field of v4l2_format. To make this more generic the queue_setup callback is changed: the void pointer is dropped, instead if the *num_planes argument is 0, then use the current format size, if it is non-zero, then it contains the number of requested planes and the sizes array contains the requested sizes. If either is unsupported, then return -EINVAL, otherwise use the requested size(s). Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-20[media] media: videobuf2: Change queue_setup argumentJunghak Sung1-1/+1
Replace struct v4l2_format * with void * to make queue_setup() for common use. And then, modify all device drivers related with this change. Signed-off-by: Junghak Sung <jh1009.sung@samsung.com> Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com> Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> [hans.verkuil@cisco.com: fix missing const in fimc-lite.c] Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01[media] media: videobuf2: Restructure vb2_bufferJunghak Sung1-7/+8
Remove v4l2 stuff - v4l2_buf, v4l2_plane - from struct vb2_buffer. Add new member variables - bytesused, length, offset, userptr, fd, data_offset - to struct vb2_plane in order to cover all information of v4l2_plane. struct vb2_plane { <snip> unsigned int bytesused; unsigned int length; union { unsigned int offset; unsigned long userptr; int fd; } m; unsigned int data_offset; } Replace v4l2_buf with new member variables - index, type, memory - which are common fields for buffer management. struct vb2_buffer { <snip> unsigned int index; unsigned int type; unsigned int memory; unsigned int num_planes; struct vb2_plane planes[VIDEO_MAX_PLANES]; <snip> }; v4l2 specific fields - flags, field, timestamp, timecode, sequence - are moved to vb2_v4l2_buffer in videobuf2-v4l2.c struct vb2_v4l2_buffer { struct vb2_buffer vb2_buf; __u32 flags; __u32 field; struct timeval timestamp; struct v4l2_timecode timecode; __u32 sequence; }; Signed-off-by: Junghak Sung <jh1009.sung@samsung.com> Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com> Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01[media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2Junghak Sung1-1/+1
Make videobuf2-v4l2 as a wrapper of videobuf2-core for v4l2-use. And replace videobuf2-core.h with videobuf2-v4l2.h. This renaming change should be accompanied by the modifications of all device drivers that include videobuf2-core.h. It can be done with just running this shell script. replace() { str1=$1 str2=$2 dir=$3 for file in $(find $dir -name *.h -o -name *.c -o -name Makefile) do echo $file sed "s/$str1/$str2/g" $file > $file.out mv $file.out $file done } replace "videobuf2-core" "videobuf2-v4l2" "include/media/" replace "videobuf2-core" "videobuf2-v4l2" "drivers/media/" replace "videobuf2-core" "videobuf2-v4l2" "drivers/usb/gadget/" replace "videobuf2-core" "videobuf2-v4l2" "drivers/staging/media/" Signed-off-by: Junghak Sung <jh1009.sung@samsung.com> Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com> Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com> Acked-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-05-12[media] media: platform: s5p: Constify platform_device_idKrzysztof Kozlowski1-1/+1
The platform_device_id is not modified by the driver and core uses it as const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com> [k.debski@samsung.com: Fix misspelling in title (s/sp5/s5p/)] Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-02[media] s5p-g2d: remove unnecessary version.h inclusionFabian Frederick1-1/+0
Based on versioncheck. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-12-14Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-12-02[media] media/platform: fix querycapHans Verkuil1-8/+2
Querycap shouldn't set the version field (the core does that for you), but it should set the device_caps field. In addition, remove the CAPTURE and OUTPUT caps for M2M devices. These were already slated for removal, so it's time to do so. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Kamil Debski <k.debski@samsung.com> Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-10-20media: platform: s5p-g2d: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-08-26[media] g2d: remove unused varMauro Carvalho Chehab1-4/+3
drivers/media/platform/s5p-g2d/g2d.c: In function 'job_abort': drivers/media/platform/s5p-g2d/g2d.c:493:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] int ret; ^ The job_abort function returns void. No sense to get the returned argument, if this won't be used. Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-05[media] v4l: Copy timestamp source flags to destination on m2m devicesSakari Ailus1-0/+3
Copy the flags containing the timestamp source from source buffer flags to the destination buffer flags on memory-to-memory devices. This is analogous to copying the timestamp field from source to destination. Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-03-05[media] v4l: Rename vb2_queue.timestamp_type as timestamp_flagsSakari Ailus1-2/+2
The timestamp_type field used to contain only the timestamp type. Soon it will be used for timestamp source flags as well. Rename the field accordingly. [m.chehab@samsung.com: do the change also to drivers/staging/media and at s2255] Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-12-04[media] s5p-g2d: Use mem-to-mem ioctl helpersSylwester Nawrocki1-103/+21
Simplify the driver by using the m2m ioctl and vb2 helpers. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-10-28[media] s5p-g2d: Remove casting the return value which is a void pointerJingoo Han1-1/+1
Casting the return value which is a void pointer is redundant. The conversion from void pointer to any other pointer type is guaranteed by the C programming language. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-09-03[media] s5p-g2d: Fix registration failureSachin Kamat1-0/+1
Commit 1c1d86a1ea ("[media] v4l2: always require v4l2_dev, rename parent to dev_parent") expects v4l2_dev to be always set. It converted most of the drivers using the parent field of video_device to v4l2_dev field. G2D driver did not set the parent field. Hence it got left out. Without this patch we get the following boot warning and G2D driver fails to register the video device. WARNING: CPU: 0 PID: 1 at drivers/media/v4l2-core/v4l2-dev.c:775 __video_register_device+0xfc0/0x1028() Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.11.0-rc1-00001-g1c3e372-dirty #9 [<c0014b7c>] (unwind_backtrace+0x0/0xf4) from [<c0011524>] (show_stack+0x10/0x14) [<c0011524>] (show_stack+0x10/0x14) from [<c041d7a8>] (dump_stack+0x7c/0xb0) [<c041d7a8>] (dump_stack+0x7c/0xb0) from [<c001dc94>] (warn_slowpath_common+0x6c/0x88) [<c001dc94>] (warn_slowpath_common+0x6c/0x88) from [<c001dd4c>] (warn_slowpath_null+0x1c/0x24) [<c001dd4c>] (warn_slowpath_null+0x1c/0x24) from [<c02cf8d4>] (__video_register_device+0xfc0/0x1028) [<c02cf8d4>] (__video_register_device+0xfc0/0x1028) from [<c0311a94>] (g2d_probe+0x1f8/0x398) [<c0311a94>] (g2d_probe+0x1f8/0x398) from [<c0247d54>] (platform_drv_probe+0x14/0x18) [<c0247d54>] (platform_drv_probe+0x14/0x18) from [<c0246b10>] (driver_probe_device+0x108/0x220) [<c0246b10>] (driver_probe_device+0x108/0x220) from [<c0246cf8>] (__driver_attach+0x8c/0x90) [<c0246cf8>] (__driver_attach+0x8c/0x90) from [<c0245050>] (bus_for_each_dev+0x60/0x94) [<c0245050>] (bus_for_each_dev+0x60/0x94) from [<c02462c8>] (bus_add_driver+0x1c0/0x24c) [<c02462c8>] (bus_add_driver+0x1c0/0x24c) from [<c02472d0>] (driver_register+0x78/0x140) [<c02472d0>] (driver_register+0x78/0x140) from [<c00087c8>] (do_one_initcall+0xf8/0x144) [<c00087c8>] (do_one_initcall+0xf8/0x144) from [<c05b29e8>] (kernel_init_freeable+0x13c/0x1d8) [<c05b29e8>] (kernel_init_freeable+0x13c/0x1d8) from [<c041a108>] (kernel_init+0xc/0x160) [<c041a108>] (kernel_init+0xc/0x160) from [<c000e2f8>] (ret_from_fork+0x14/0x3c) ---[ end trace 4e0ec028b0028e02 ]--- s5p-g2d 12800000.g2d: Failed to register video device s5p-g2d: probe of 12800000.g2d failed with error -22 Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Cc: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Cc: stable@vger.kernel.org
2013-04-25[media] s5p-g2d: Add copy time stamp handlingKamil Debski1-0/+5
Since the introduction of the timestamp_type field, it is necessary that the driver chooses which type it will use. This patch adds support for the timestamp_type. Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-05[media] s5p-g2d: Add DT based discovery supportSachin Kamat1-2/+29
This patch adds device tree based discovery support to the G2D driver. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-06[media] media: Convert to devm_ioremap_resource()Thierry Reding1-5/+3
Convert all uses of devm_request_and_ioremap() to the newly introduced devm_ioremap_resource() which provides more consistent error handling. devm_ioremap_resource() provides its own error messages so all explicit error messages can be removed from the failure code paths. Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-02-05[media] s5p-g2d: Add support for G2D H/W Rev.4.1Sachin Kamat1-2/+29
Modified the G2D driver (which initially supported only H/W Rev.3) to support H/W Rev.4.1 present on Exynos4x12 and Exynos52x0 SOCs. - Set the SRC and DST type to 'memory' instead of using reset values. - FIMG2D v4.1 H/W uses different logic for stretching(scaling). - Use CACHECTL_REG only with FIMG2D v3. [s.nawrocki: removed empty line at end of file]] Signed-off-by: Ajay Kumar <ajaykumar.rs@samsung.com> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-01-06[media] s5p-g2d: Fix incorrect usage of IS_ERR_OR_NULLTony Prisk1-2/+2
Replace IS_ERR_OR_NULL with IS_ERR on clk_get results. Signed-off-by: Tony Prisk <linux@prisktech.co.nz> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-10-05[media] s5p-g2d: fix compiler warningHans Verkuil1-1/+1
drivers/media/platform/s5p-g2d/g2d.c:535:2: warning: passing argument 3 of 'vidioc_try_crop' discards 'const' qualifier from pointer target type [enabled by default] drivers/media/platform/s5p-g2d/g2d.c:510:12: note: expected 'struct v4l2_crop *' but argument is of type 'const struct v4l2_crop *' This is fall-out from this commit: commit 4f996594ceaf6c3f9bc42b40c40b0f7f87b79c86 Author: Hans Verkuil <hans.verkuil@cisco.com> [media] v4l2: make vidioc_s_crop const Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-26[media] Set vfl_dir for all display or m2m driversHans Verkuil1-0/+1
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-26[media] v4l2: make vidioc_s_crop constHans Verkuil1-1/+1
Write-only ioctls should have a const argument in the ioctl op. Do this conversion for vidioc_s_crop. Adding const for write-only ioctls was decided during the 2012 Media Workshop. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-15[media] s5p-g2d: Remove unneeded struct vb2_queue clear on queue_init()Ezequiel García1-2/+0
queue_init() is always called by v4l2_m2m_ctx_init(), which allocates a context struct v4l2_m2m_ctx with kzalloc. Therefore, there is no need to clear vb2_queue src/dst structs. Cc: Kamil Debski <k.debski@samsung.com> Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-15[media] rename drivers/media/video as .../platformMauro Carvalho Chehab1-0/+847
The remaining drivers are mostly platform drivers. Name the dir to reflect it. It makes sense to latter break it into a few other dirs. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>