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a4273abcd3
linux/drivers/media/platform
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Ezequiel Garcia a4273abcd3 media: mx_emmaprp: Implement wait_prepare and wait_finish 
This driver is currently specifying a video_device lock,
which means it is protecting all the ioctls (including
queue ioctls) with a single mutex.

It's therefore straightforward to implement wait_prepare
and wait_finish, by explicitly setting the vb2_queue lock.

Having these callbacks releases the queue lock while blocking,
which improves latency by allowing for example streamoff
or qbuf operations while waiting in dqbuf.

Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-04 08:02:33 -04:00
..
am437x treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
atmel media: atmel-isi: move of_node_put() to cover success branch as well 2018-06-28 06:50:28 -04:00
cadence media: v4l: cadence: add VIDEO_V4L2 dependency 2018-06-27 09:51:49 -04:00
cec-gpio media: cec-gpio: use GPIOD_OUT_HIGH_OPEN_DRAIN 2018-05-09 16:15:06 -04:00
coda media: mem2mem: Remove unused v4l2_m2m_ops .lock/.unlock 2018-06-28 07:56:49 -04:00
davinci treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
exynos4-is media: include/media: fix missing | operator when setting cfg 2018-05-05 09:01:22 -04:00
exynos-gsc media updates for v4.16-rc1 2018-02-06 11:27:48 -08:00
marvell-ccic Merge branch 'i2c/for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2018-06-14 16:21:46 +09:00
meson media: platform: Add Amlogic Meson AO CEC Controller driver 2017-08-09 10:45:26 -04:00
mtk-jpeg media: vcodec: fix ptr_ret.cocci warnings 2018-05-09 15:58:30 -04:00
mtk-mdp media: mtk-mdp: Add locks for capture and output vb2_queues 2018-07-04 08:00:53 -04:00
mtk-vcodec media: mem2mem: Remove unused v4l2_m2m_ops .lock/.unlock 2018-06-28 07:56:49 -04:00
mtk-vpu media: mtk-vpu: fix spelling mistake: "Prosessor" -> "Processor" 2018-06-28 06:39:34 -04:00
omap media: v4l: omap: add VIDEO_V4L2 dependency 2018-06-28 06:48:21 -04:00
omap3isp media: omap3isp: zero-initialize the isp cam_xclk{a,b} initial data 2018-06-28 09:21:58 -04:00
qcom media: venus: keep resolution when adjusting format 2018-06-28 07:55:10 -04:00
rcar-vin media: rcar-vin: enable support for r8a77965 2018-06-28 07:25:24 -04:00
rockchip/rga media: rockchip/rga: Remove unrequired wait in .job_abort 2018-06-28 07:56:05 -04:00
s3c-camif media: s3c-camif: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power 2018-06-28 09:22:30 -04:00
s5p-cec media: s5p-cec: add NACK detection support 2017-09-23 07:29:30 -04:00
s5p-g2d media: s5p-g2d: Implement wait_prepare and wait_finish 2018-07-04 08:00:53 -04:00
s5p-jpeg media: s5p-jpeg: don't return a value on a void function 2018-05-04 08:58:22 -04:00
s5p-mfc media: s5p-mfc: fix two sparse warnings 2018-05-25 15:31:00 -04:00
soc_camera docs: Fix some broken references 2018-06-15 18:10:01 -03:00
sti media: mem2mem: Remove unused v4l2_m2m_ops .lock/.unlock 2018-06-28 07:56:49 -04:00
stm32 media: stm32-dcmi: add power saving support 2018-06-28 07:49:56 -04:00
tegra-cec media: tegra-cec: reset rx_buf_cnt when start bit detected 2018-03-05 07:46:24 -05:00
ti-vpe media: mem2mem: Remove unused v4l2_m2m_ops .lock/.unlock 2018-06-28 07:56:49 -04:00
vimc media: vimc: use correct subdev functions 2018-02-26 09:31:41 -05:00
vivid treewide: Use array_size() in vzalloc() 2018-06-12 16:19:22 -07:00
vsp1 treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
xilinx treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
fsl-viu.c media: platform: fix some 64-bits warnings 2018-04-17 05:50:00 -04:00
Kconfig media: v4l: rcar_fdp1: Change platform dependency to ARCH_RENESAS 2018-06-27 10:38:36 -04:00
m2m-deinterlace.c media: mem2mem: Remove unused v4l2_m2m_ops .lock/.unlock 2018-06-28 07:56:49 -04:00
Makefile media: v4l: cadence: Add Cadence MIPI-CSI2 RX driver 2018-05-16 11:12:21 -04:00
mx2_emmaprp.c media: mx_emmaprp: Implement wait_prepare and wait_finish 2018-07-04 08:02:33 -04:00
pxa_camera.c docs: Fix some broken references 2018-06-15 18:10:01 -03:00
rcar_drif.c media: rcar_drif: fix error return code in rcar_drif_alloc_dmachannels() 2018-02-26 07:43:29 -05:00
rcar_fdp1.c media: drivers: remove "/**" from non-kernel-doc comments 2017-11-30 04:19:03 -05:00
rcar_jpu.c media: rcar_vpu: Drop unneeded job_ready 2018-06-28 07:57:33 -04:00
rcar-fcp.c v4l: rcar-fcp: Add an API to retrieve the FCP device 2017-06-09 12:25:36 +01:00
renesas-ceu.c media: renesas-ceu: Add support for YUYV permutations 2018-06-28 06:51:05 -04:00
sh_veu.c media: platform: sh_veu: use 64-bit arithmetic instead of 32-bit 2018-02-26 08:09:48 -05:00
sh_vou.c media: replace all <spaces><tab> occurrences 2018-01-04 13:15:05 -05:00
via-camera.c fbdev changes for v4.18: 2018-06-17 05:00:24 +09:00
via-camera.h media: fix usage of whitespaces and on indentation 2018-01-04 13:12:01 -05:00
video-mux.c media: platform: video-mux: propagate format from sink to source 2018-05-04 15:56:15 -04:00
vim2m.c media: vim2m: Remove surplus name initialization 2018-06-28 07:51:38 -04:00