linux-toradex.git/drivers/media/spi, branch v4.20-rc6

media: cxd2880-spi: Modified how to declare structure

2018-05-05T14:37:12+00:00

This is the modification of structure declaration for spi_transfer.

Signed-off-by: Yasunari Takiguchi 
Signed-off-by: Masayuki Yamamoto 
Signed-off-by: Hideki Nozawa 
Signed-off-by: Kota Yonezawa 
Signed-off-by: Toshihiko Matsumoto 
Signed-off-by: Satoshi Watanabe 
Signed-off-by: Mauro Carvalho Chehab

media: cxd2880-spi: avoid out-of-bounds access warning

2018-05-04T15:27:00+00:00

The -Warray-bounds warning in gcc-8 triggers for a newly added file:

drivers/media/spi/cxd2880-spi.c: In function 'cxd2880_write_reg':
drivers/media/spi/cxd2880-spi.c:111:3: error: 'memcpy' forming offset [133, 258] is out of the bounds [0, 132] of object 'send_data' with type 'u8[132]' {aka 'unsigned char[132]'} [-Werror=array-bounds]

The problem appears to be that we have two range checks in this function,
first comparing against BURST_WRITE_MAX (128) and then comparing against
a literal '255'. The logic checking the buffer size looks at the second
one and decides that this might be the actual maximum data length.

This is understandable behavior from the compiler, but the code is actually
safe. Since the first check is already shorter, we can remove the loop
and only leave that. To be on the safe side in case BURST_WRITE_MAX might
be increased, I'm leaving the check against U8_MAX.

Fixes: bd24fcddf6b8 ("media: cxd2880-spi: Add support for CXD2880 SPI interface")

Cc: Martin Sebor 
Signed-off-by: Arnd Bergmann 
Reviewed-by: Yasunari Takiguchi 
Signed-off-by: Mauro Carvalho Chehab

media: cxd2880: Add all Makefile, Kconfig files and Update MAINTAINERS file for the driver

2018-03-07T10:02:57+00:00

This is the Makefile, Kconfig files of driver
and MAINTAINERS file update about the driver
for the Sony CXD2880 DVB-T2/T tuner + demodulator.

Signed-off-by: Yasunari Takiguchi 
Signed-off-by: Masayuki Yamamoto 
Signed-off-by: Hideki Nozawa 
Signed-off-by: Kota Yonezawa 
Signed-off-by: Toshihiko Matsumoto 
Signed-off-by: Satoshi Watanabe 
Signed-off-by: Mauro Carvalho Chehab

media: cxd2880: Fix location of DVB headers

2018-03-07T10:02:37+00:00

Fix a trivial conflict, where the location of DVB headers
got moved.

Signed-off-by: Mauro Carvalho Chehab

media: cxd2880-spi: Add support for CXD2880 SPI interface

2018-03-07T09:39:19+00:00

This is the SPI adapter part of the driver for the
Sony CXD2880 DVB-T2/T tuner + demodulator.

Signed-off-by: Yasunari Takiguchi 
Signed-off-by: Masayuki Yamamoto 
Signed-off-by: Hideki Nozawa 
Signed-off-by: Kota Yonezawa 
Signed-off-by: Toshihiko Matsumoto 
Signed-off-by: Satoshi Watanabe 
Signed-off-by: Mauro Carvalho Chehab

[media] gs1662: drop kfree for memory allocated with devm_kzalloc

2016-10-24T19:59:08+00:00

It's not necessary to free memory allocated with devm_kzalloc
and using kfree leads to a double free.

Fixes: 7aae6e2df127 ("[media] Add GS1662 driver, a video serializer")

Signed-off-by: Wei Yongjun 
Signed-off-by: Mauro Carvalho Chehab

[media] gs1662: remove .owner field for driver

2016-10-24T19:58:17+00:00

Remove .owner field if calls are used which set it automatically.

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Wei Yongjun 
Signed-off-by: Mauro Carvalho Chehab

[media] gs1662: make checkpatch happy

2016-09-19T17:39:49+00:00

WARNING: line over 80 characters
+			     GS_HEIGHT_MAX, GS_PIXELCLOCK_MIN, GS_PIXELCLOCK_MAX,

WARNING: line over 80 characters
+		if (v4l2_match_dv_timings(timings, ®_fmt[i].format, 0, false))

WARNING: Block comments use a trailing */ on a separate line
+	 * which looks like a video signal activity.*/

WARNING: else is not generally useful after a break or return
+		return gs_write_register(gs->pdev, REG_FORCE_FMT, reg_value);
+	} else {

WARNING: Block comments use a trailing */ on a separate line
+	 * which looks like a video signal activity.*/

ERROR: spaces required around that '=' (ctx:VxW)
+	.enum_dv_timings= gs_enum_dv_timings,
 	                ^

Signed-off-by: Mauro Carvalho Chehab

[media] media Kconfig: improve the spi integration

2016-09-19T17:37:05+00:00

The SPI driver looked a bit lonely in the config menu, and it didn't
support the autoselect. Shift things around a bit so it looks more logical.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] Add GS1662 driver, a video serializer

2016-09-19T17:36:24+00:00

You can read datasheet here:
http://www.c-dis.net/media/871/GS1662_Datasheet.pdf

It's a component which supports HD and SD CEA or SDI formats
to SDI output. It's configured through SPI bus.

GS1662 driver is implemented as v4l2 subdev.

Signed-off-by: Charles-Antoine Couret 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab