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* media: bdisp: Fix runtime PM imbalance on errorDinghao Liu2020-10-29
| | | | | | | | | | | | | | [ Upstream commit dbd2f2dc025f9be8ae063e4f270099677238f620 ] pm_runtime_get_sync() increments the runtime PM usage counter even when it returns an error code. Thus a pairing decrement is needed on the error handling path to keep the counter balanced. Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
* c8sectpfe: Rework firmware loading mechanismPeter Griffin2020-05-10
| | | | | | | | | | | | | | | | | | | | commit c23ac90f78aa9190643c82c1975a0cfe480d7c60 upstream. c8sectpfe driver relied on CONFIG_FW_LOADER_USER_HELPER_FALLBACK option for loading its xp70 firmware. A previous commit removed this Kconfig option, as it is apparently harmful, but did not update the driver code which relied on it. This patch reworks the firmware loading into the start_feed callback. At this point we can be sure the rootfs is present, thereby removing the depedency on CONFIG_FW_LOADER_USER_HELPER_FALLBACK. Fixes: 79f5b6ae960d ('[media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACK') Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* media: sti: bdisp: fix a possible sleep-in-atomic-context bug in ↵Jia-Ju Bai2020-02-28
| | | | | | | | | | | | | | | | | | | | | | | | | | bdisp_device_run() [ Upstream commit bb6d42061a05d71dd73f620582d9e09c8fbf7f5b ] The driver may sleep while holding a spinlock. The function call path (from bottom to top) in Linux 4.19 is: drivers/media/platform/sti/bdisp/bdisp-hw.c, 385: msleep in bdisp_hw_reset drivers/media/platform/sti/bdisp/bdisp-v4l2.c, 341: bdisp_hw_reset in bdisp_device_run drivers/media/platform/sti/bdisp/bdisp-v4l2.c, 317: _raw_spin_lock_irqsave in bdisp_device_run To fix this bug, msleep() is replaced with udelay(). This bug is found by a static analysis tool STCheck written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
* media: bdisp: fix memleak on releaseJohan Hovold2019-12-21
| | | | | | | | | | | | | | | | | | | | commit 11609a7e21f8cea42630350aa57662928fa4dc63 upstream. If a process is interrupted while accessing the video device and the device lock is contended, release() could return early and fail to free related resources. Note that the return value of the v4l2 release file operation is ignored. Fixes: 28ffeebbb7bd ("[media] bdisp: 2D blitter driver using v4l2 mem2mem framework") Cc: stable <stable@vger.kernel.org> # 4.2 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* media: c8sectpfe: fix potential NULL pointer dereference in ↵Gustavo A. R. Silva2018-03-24
| | | | | | | | | | | | | | | | | | | | c8sectpfe_timer_interrupt [ Upstream commit baed3c4bc4c13de93e0dba0a26d601411ebcb389 ] _channel_ is being dereferenced before it is null checked, hence there is a potential null pointer dereference. Fix this by moving the pointer dereference after _channel_ has been null checked. This issue was detected with the help of Coccinelle. Fixes: c5f5d0f99794 ("[media] c8sectpfe: STiH407/10 Linux DVB demux support") Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'media/v4.4-1' of ↵Linus Torvalds2015-11-05
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: "Media updates, including: - Lots of improvements at the kABI documentation - Split of Videobuf2 into a common part and a V4L2 specific one - Split of the VB2 tracing events into a separate header file - s5p-mfc got support for Exynos 5433 - v4l2 fixes for 64-bits alignment when running 32 bits userspace on ARM - Added support for SDR radio transmitter at core, vivid and hackrf drivers - Some y2038 fixups - Some improvements at V4L2 colorspace support - saa7164 converted to use the V4L2 core control framework - several new boards additions, cleanups and fixups PS: There are two patches for scripts/kernel-doc that are needed by the documentation patches on Media. Jon is OK on merging those via my tree" * tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (146 commits) [media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACK [media] DocBook media: update copyright/version numbers [media] ivtv: Convert to get_user_pages_unlocked() [media] media/v4l2-ctrls: fix setting autocluster to manual with VIDIOC_S_CTRL [media] DocBook media: Fix a typo in encoder cmd [media] DocBook: add SDR specific info to G_MODULATOR / S_MODULATOR [media] DocBook: add SDR specific info to G_TUNER / S_TUNER [media] hackrf: do not set human readable name for formats [media] hackrf: add support for transmitter [media] hackrf: switch to single function which configures everything [media] hackrf: add control for RF amplifier [media] DocBook: add modulator type field [media] v4l: add type field to v4l2_modulator struct [media] DocBook: document SDR transmitter [media] v4l2: add support for SDR transmitter [media] DocBook: document tuner RF gain control [media] v4l2: add RF gain control [media] v4l2: rename V4L2_TUNER_ADC to V4L2_TUNER_SDR [media] media/vivid-osd: fix info leak in ioctl [media] media: videobuf2: Move v4l2-specific stuff to videobuf2-v4l2 ...
| * [media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACKTakashi Iwai2015-10-20
| | | | | | | | | | | | | | | | | | | | | | | | c8sectpfe driver selects CONFIG_FW_LOADER_USER_HELPER_FALLBACK by some reason, but this option is known to be harmful, leading to minutes of stalls at boot time. The option was intended for only compatibility for an old exotic system that mandates the udev interaction, and not a thing a driver selects by itself. Let's remove it. Fixes: 850a3f7d5911 ('[media] c8sectpfe: Add Kconfig and Makefile for the driver') Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * [media] media: videobuf2: Change queue_setup argumentJunghak Sung2015-10-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * [media] c8sectpfe: fix namespace on memcpy/memsetMauro Carvalho Chehab2015-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | Solves those sparse warnings: drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1087:9: warning: incorrect type in argument 1 (different address spaces) drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1087:9: expected void *<noident> drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1087:9: got void [noderef] <asn:2>*<noident> drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1090:9: warning: incorrect type in argument 1 (different address spaces) drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1090:9: expected void *<noident> drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1090:9: got void [noderef] <asn:2>* Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
| * [media] media: videobuf2: Restructure vb2_bufferJunghak Sung2015-10-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | [media] c8sectpfe: fix return of garbageSudip Mukherjee2015-10-22
| | | | | | | | | | | | | | | | | | | | | | | | The variable err was never initialized, that means we had been checking a garbage value in the for loop. Moreover if the segment is not outside the firmware file then also we have been returning the garbage. Initialize it to 0 so that on success we return the value and no need to check in the for loop also as it is initially 0 and whenever that value changes we have done a break from the loop. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* | [media] c8sectpfe: fix ininitialized error return on firmware load failureColin Ian King2015-10-22
|/ | | | | | | | | | | | static analysis with cppcheck detected the following error: [drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:1210]: (error) Uninitialized variable: ret ret is never initialised, so garbage is being returned. Instead return the error return from the call of request_firmware_nowait Signed-off-by: Colin Ian King <colin.king@canonical.com>
* [media] c8sectpfe: Remove select on undefined LIBELF_32Peter Griffin2015-09-03
| | | | | | | | | | | LIBELF_32 is not defined in Kconfig, and is left over legacy which is not required in the upstream driver, so remove it. Suggested-by: Valentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] c8sectpfe: Use %pad to print 'dma_addr_t'Fabio Estevam2015-09-03
| | | | | | | | | | | Use %pad to print 'dma_addr_t' in order to fix the following build warning: drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:588:2: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' [-Wformat=] Reported-by: Olof's autobuilder <build@lixom.net> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] c8sectpfe: fix pinctrl dependenciesMauro Carvalho Chehab2015-08-11
| | | | | | | | | | | | compiling on some archs fail with: drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:540:8: error: implicit declaration of function ‘pinctrl_select_state’ [-Werror=implicit-function-declaration] ret = pinctrl_select_state(fei->pinctrl, tsin->pstate); That's due the need of including pinctrl.h header and because CONFIG_PINCTRL needs to be true. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] c8sectpfe: don't go past channel_data arrayMauro Carvalho Chehab2015-08-11
| | | | | | | | | | | As reported by smatch: drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c:365 find_channel() error: buffer overflow 'fei->channel_data' 8 <= 63 It seems that a cut-and-paste type of error occurred here: the channel_data array size is C8SECTPFE_MAX_TSIN_CHAN, and not C8SECTPFE_MAXCHANNEL. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] c8sectpfe: Allow compiling it with COMPILE_TESTMauro Carvalho Chehab2015-08-11
| | | | | | | | While it won't work, it is good to allow it to build with COMPILE_TEST, as we can check if other patches would break compilation for this driver. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] c8sectpfe: Add Kconfig and Makefile for the driverPeter Griffin2015-08-11
| | | | | | | | | This patch adds the Kconfig and Makefile for the c8sectpfe driver so it will be built. It also selects additional demodulator and tuners which are required by the supported NIM cards. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] c8sectpfe: Add c8sectpfe debugfs supportPeter Griffin2015-08-11
| | | | | | | | | | Some basic debugfs support to dump the IP registers. Further statistics could easily be added in the future for example for each enabled tsin channel we could expose number of corrupt packets received etc. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] c8sectpfe: Add support for various ST NIM cardsPeter Griffin2015-08-11
| | | | | | | | | | | | This patch adds support for the following 2 NIM cards: - 1) B2100A (2x stv0367 demods & 2x NXP tda18212 tuners) 2) STV0903-6110NIM (stv0903 demod + 6110 tuner, lnb24) A NIM card is a cold plugable expansion card which usually features a demodulator / tuner combination. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] c8sectpfe: Add LDVB helper functionsPeter Griffin2015-08-11
| | | | | | | | | | | | | These functions are used by the core code for creating the LDVB devices and adapter. Addtionally some older SoC's (and potentially newer ones) have different frontend HW which would allow those devices to be easily supported in the future by keeping the code specific to the IP separate from the more generic code. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] c8sectpfe: STiH407/10 Linux DVB demux supportPeter Griffin2015-08-11
| | | | | | | | | | | | | | | | | This patch adds support for the c8sectpfe input HW found on STiH407/410 SoC's. It currently supports the TS input block, memdma engine and hw PID filtering blocks of the C8SECTPFE subsystem. The driver creates one LinuxDVB adapter, and a demux/dvr/frontend set of devices for each tsin channel which is specificed in the DT. It has been tested with multiple tsin channels tuned, locked, and grabbing TS simultaneously. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] bdisp: fix debug info memory accessFabien Dessenne2015-07-17
| | | | | | | | | bdisp_dev->dbg.copy_node shall be a copy of (and not point to) bdisp_ctx->node, since this resource is freed upon driver release. Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] bdisp: add debug info for RGB24 formatFabien Dessenne2015-07-17
| | | | | | | | Add this missing debug information Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] bdisp: composing supportFabien Dessenne2015-07-17
| | | | | | | | | Support the composing (at VIDEO_CAPTURE) with the _selection API. v4l2-compliance successfully run ("test Composing: OK") Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] bdisp: prevent compiling on random archMauro Carvalho Chehab2015-06-22
| | | | | | | | | | | | | | | | | | | | | | | | | This driver requires support for DMA attrs function, and not just DMA. Change the options accordingly to remove those errors: /devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c: In function ‘bdisp_hw_free_nodes’: /devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c:132:3: error: implicit declaration of function ‘dma_free_attrs’ [-Werror=implicit-function-declaration] dma_free_attrs(ctx->bdisp_dev->dev, ^ /devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c: In function ‘bdisp_hw_alloc_nodes’: /devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c:157:9: error: implicit declaration of function ‘dma_alloc_attrs’ [-Werror=implicit-function-declaration] base = dma_alloc_attrs(dev, node_size * MAX_NB_NODE, &paddr, ^ /devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c:157:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] base = dma_alloc_attrs(dev, node_size * MAX_NB_NODE, &paddr, ^ /devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c: In function ‘bdisp_hw_alloc_filters’: /devel/v4l/to_next/drivers/media/platform/sti/bdisp/bdisp-hw.c:219:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] base = dma_alloc_attrs(dev, size, &paddr, GFP_KERNEL | GFP_DMA, &attrs); Also, get rid of bogus, unused and duplicated symbol declaration for the config option done at bdisp/Kconfig. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] bdisp-debug: don't try to divide by s64Mauro Carvalho Chehab2015-06-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are several warnings there, on some architectures, related to dividing a s32 by a s64 value: drivers/media/platform/sti/bdisp/bdisp-debug.c:594: warning: comparison of distinct pointer types lacks a cast drivers/media/platform/sti/bdisp/bdisp-debug.c:594: warning: right shift count >= width of type drivers/media/platform/sti/bdisp/bdisp-debug.c:594: warning: passing argument 1 of '__div64_32' from incompatible pointer type drivers/media/platform/sti/bdisp/bdisp-debug.c:595: warning: comparison of distinct pointer types lacks a cast drivers/media/platform/sti/bdisp/bdisp-debug.c:595: warning: right shift count >= width of type drivers/media/platform/sti/bdisp/bdisp-debug.c:595: warning: passing argument 1 of '__div64_32' from incompatible pointer type CC [M] drivers/media/tuners/mt2060.o drivers/media/platform/sti/bdisp/bdisp-debug.c:596: warning: comparison of distinct pointer types lacks a cast drivers/media/platform/sti/bdisp/bdisp-debug.c:596: warning: right shift count >= width of type drivers/media/platform/sti/bdisp/bdisp-debug.c:596: warning: passing argument 1 of '__div64_32' from incompatible pointer type drivers/media/platform/sti/bdisp/bdisp-debug.c:597: warning: comparison of distinct pointer types lacks a cast drivers/media/platform/sti/bdisp/bdisp-debug.c:597: warning: right shift count >= width of type drivers/media/platform/sti/bdisp/bdisp-debug.c:597: warning: passing argument 1 of '__div64_32' from incompatible pointer type That doesn't make much sense. What the driver is actually trying to do is to divide one second by a value. So, check the range before dividing. That warrants the right result and will remove the warnings on non-64 bits archs. Also fixes this warning: drivers/media/platform/sti/bdisp/bdisp-debug.c:588: warning: comparison of distinct pointer types lacks a cast by using div64_s64() instead of calling do_div() directly. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] bdisp: remove unused varMauro Carvalho Chehab2015-06-10
| | | | | | | | | | Fix the following warning: drivers/media/platform/sti/bdisp/bdisp-v4l2.c: In function 'bdisp_register_device': drivers/media/platform/sti/bdisp/bdisp-v4l2.c:1024:26: warning: variable 'pdev' set but not used [-Wunused-but-set-variable] struct platform_device *pdev; Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] bdisp: remove needless checkFabien Dessenne2015-06-10
| | | | | | | | | | As reported by smatch: drivers/media/platform/sti/bdisp/bdisp-v4l2.c:947 bdisp_s_selection() warn: unsigned 'out.width' is never less than zero. drivers/media/platform/sti/bdisp/bdisp-v4l2.c:947 bdisp_s_selection() warn: unsigned 'out.height' is never less than zero. Indeed, width and height are unsigned. Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] bdisp: add debug file systemFabien Dessenne2015-06-09
| | | | | | | | | Creates 5 debugfs entries to dump the last HW request, the last HW node (=command), the HW registers and the recent HW performance (time & fps) Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] bdisp: 2D blitter driver using v4l2 mem2mem frameworkFabien Dessenne2015-06-09
This v4l2 mem2mem driver is a 2D blitter for STMicroelectronics SoC. It uses the v4l2 mem2mem framework. The following features are supported and tested: - Color format conversion (RGB32, RGB24, RGB16, NV12, YUV420P) - Copy - Scale - Flip - Deinterlace - Wide (4K) picture support - Crop Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> [hans.verkuil@cisco.com: added missing slab.h include to bdisp-v4l2.c] Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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