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253ccf3423
mirror_ubuntu-kernels/drivers/media/platform
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Eugen Hristev 253ccf3423 media: atmel: atmel-isc: limit incoming pixels per frame 
This will limit the incoming pixels per frame from the sensor.
Currently, the ISC will stop sampling the frame only when the vsync/hsync
are detected.
If we misconfigure the resolution in the sensor w.r.t. resolution in the ISC,
the buffer used for DMA in the ISC will be smaller than the number of pixels
that the ISC DMA engine will copy.
In this case it happens that the DMA will overwrite parts of the memory which
should not be written, leading to memory corruption.
To avoid this situation, use the PFE CFG1 and PFE CFG2 registers, which crop
the incoming frame to the resolution that we configure.
This way the DMA engine will never write more data than we expect it to.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-08 13:55:09 -04:00
..
am437x media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
atmel media: atmel: atmel-isc: limit incoming pixels per frame 2019-05-08 13:55:09 -04:00
cadence media: v4l: fwnode: Initialise the V4L2 fwnode endpoints to zero 2018-10-04 16:21:02 -04:00
cec-gpio media: cec-gpio: support 5v testing 2018-07-25 07:12:36 -04:00
coda media: coda: throw error on create_bufs with too small size 2019-04-22 12:11:13 -04:00
cros-ec-cec media: cros-ec-cec: decrement HDMI device refcount 2019-04-22 13:14:44 -04:00
davinci media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
exynos4-is media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
exynos-gsc media: exynos-gsc: replace v4l2_crop by v4l2_selection 2018-11-20 13:46:06 -05:00
marvell-ccic media: Kconfig files: use the right help coding style 2019-03-20 06:47:51 -04:00
meson media: platform: meson: Add Amlogic Meson G12A AO CEC Controller driver 2019-04-22 13:16:05 -04:00
mtk-jpeg media: mtk-jpeg: Correct return type for mem2mem buffer helpers 2019-02-18 15:28:43 -05:00
mtk-mdp media: platform: fix several typos 2019-03-01 09:35:21 -05:00
mtk-vcodec media: mtk-vcodec: fix vp9 content playback error with show exist frame 2019-04-22 11:42:19 -04:00
mtk-vpu media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
omap media: Kconfig files: use the right help coding style 2019-03-20 06:47:51 -04:00
omap3isp media: platform: fix several typos 2019-03-01 09:35:21 -05:00
qcom media: hfi_parser: don't trick gcc with a wrong expected size 2019-03-25 18:02:34 -04:00
rcar-vin media: rcar-csi2: Move setting of Field Detection Control Register 2019-04-22 12:14:19 -04:00
rockchip/rga media: platform: fix several typos 2019-03-01 09:35:21 -05:00
s3c-camif media: platform: fix several typos 2019-03-01 09:35:21 -05:00
s5p-cec media: s5p_cec: use new cec_notifier_parse_hdmi_phandle helper 2019-04-22 13:12:07 -04:00
s5p-g2d media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
s5p-jpeg media: platform: fix several typos 2019-03-01 09:35:21 -05:00
s5p-mfc Devicetree updates for v5.1: 2019-03-10 10:58:43 -07:00
seco-cec media: seco-cec: decrement HDMI device refcount 2019-04-22 13:14:24 -04:00
sti media: stih_cec: use new cec_notifier_parse_hdmi_phandle helper 2019-04-22 13:13:03 -04:00
stm32 media: stm32-dcmi: return appropriate error codes during probe 2019-04-30 13:48:14 -04:00
sunxi/sun6i-csi media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
tegra-cec media: tegra_cec: use new cec_notifier_parse_hdmi_phandle helper 2019-04-22 13:13:27 -04:00
ti-vpe media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
vicodec media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
vimc media: vimc: propagate pixel format in the stream 2019-04-22 10:58:51 -04:00
vivid media: vivid: use vfree() instead of kfree() for dev->bitmap_cap 2019-04-22 11:43:50 -04:00
vsp1 media: vsp1: Add support for missing 16-bit RGB555 formats 2019-04-25 11:07:05 -04:00
xilinx media: Kconfig files: use the right help coding style 2019-03-20 06:47:51 -04:00
aspeed-video.c media: platform: Aspeed: Make reserved memory optional 2019-04-30 13:50:47 -04:00
fsl-viu.c media: videobuf: use u64 for the timestamp internally 2019-02-07 12:11:19 -05:00
imx-pxp.c media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
imx-pxp.h media: imx-pxp: add i.MX Pixel Pipeline driver 2018-09-11 13:32:17 -04:00
Kconfig media: platform: meson: Add Amlogic Meson G12A AO CEC Controller driver 2019-04-22 13:16:05 -04:00
m2m-deinterlace.c media: use strscpy() instead of strlcpy() 2018-09-11 13:32:17 -04:00
Makefile media: soc_camera: Move to the staging tree 2019-02-18 12:09:19 -05:00
mx2_emmaprp.c media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00
pxa_camera.c media: pxa-camera: Match with device node, not the port node 2019-03-20 06:35:41 -04:00
rcar_drif.c media: rcar_drif: Remove devm_ioremap_resource() error printing 2019-03-19 13:44:38 -04:00
rcar_fdp1.c media: v4l: rcar_fdp1: Fix indentation oddities 2019-03-25 14:14:56 -04:00
rcar_jpu.c media: use strscpy() instead of strlcpy() 2018-09-11 13:32:17 -04:00
rcar-fcp.c Char/Misc driver patches for 4.19-rc1 2018-08-18 11:04:51 -07:00
renesas-ceu.c media: renesas-ceu: Use default mbus settings 2018-10-04 16:25:33 -04:00
sh_veu.c media: platform/sh_veu.c: remove redundant NULL pointer checks 2019-03-19 13:49:19 -04:00
sh_vou.c media: doc-rst: Fix broken references 2018-11-23 05:42:49 -05:00
via-camera.c media: replace strcpy() by strscpy() 2018-09-11 13:32:17 -04:00
via-camera.h media: fix usage of whitespaces and on indentation 2018-01-04 13:12:01 -05:00
video-mux.c media: video-mux: fix null pointer dereferences 2019-03-29 07:42:37 -04:00
vim2m.c media: replace strncpy() by strscpy() 2019-03-29 10:26:13 -04:00