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* media: cxd2880-spi: Modified how to declare structureYasunari Takiguchi2018-05-051-5/+3
| | | | | | | | | | | | This is the modification of structure declaration for spi_transfer. Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com> Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com> Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com> Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com> Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com> Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: cxd2880-spi: avoid out-of-bounds access warningArnd Bergmann2018-05-041-17/+7
| | | | | | | | | | | | | | | | | | | | | | | | 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 <msebor@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: cxd2880: Add all Makefile, Kconfig files and Update MAINTAINERS file ↵Yasunari Takiguchi2018-03-072-0/+19
| | | | | | | | | | | | | | | | for the driver 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 <Yasunari.Takiguchi@sony.com> Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com> Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com> Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com> Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com> Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* media: cxd2880: Fix location of DVB headersMauro Carvalho Chehab2018-03-071-3/+3
| | | | | | | Fix a trivial conflict, where the location of DVB headers got moved. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* media: cxd2880-spi: Add support for CXD2880 SPI interfaceYasunari Takiguchi2018-03-071-0/+670
| | | | | | | | | | | | | This is the SPI adapter part of the driver for the Sony CXD2880 DVB-T2/T tuner + demodulator. Signed-off-by: Yasunari Takiguchi <Yasunari.Takiguchi@sony.com> Signed-off-by: Masayuki Yamamoto <Masayuki.Yamamoto@sony.com> Signed-off-by: Hideki Nozawa <Hideki.Nozawa@sony.com> Signed-off-by: Kota Yonezawa <Kota.Yonezawa@sony.com> Signed-off-by: Toshihiko Matsumoto <Toshihiko.Matsumoto@sony.com> Signed-off-by: Satoshi Watanabe <Satoshi.C.Watanabe@sony.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] gs1662: drop kfree for memory allocated with devm_kzallocWei Yongjun2016-10-241-2/+1
| | | | | | | | | | 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 <weiyongjun1@huawei.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] gs1662: remove .owner field for driverWei Yongjun2016-10-241-1/+0
| | | | | | | | | 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 <weiyongjun1@huawei.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] gs1662: make checkpatch happyMauro Carvalho Chehab2016-09-191-10/+16
| | | | | | | | | | | | | | | | | | | | | | | | 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, &reg_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 <mchehab@s-opensource.com>
* [media] media Kconfig: improve the spi integrationHans Verkuil2016-09-191-0/+5
| | | | | | | | 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 <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] Add GS1662 driver, a video serializerCharles-Antoine Couret2016-09-193-0/+482
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 <charles-antoine.couret@nexvision.fr> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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