nvidia-tegra-modules.git/drivers/misc/tegra-cec/Makefile, branch rtss22-ae NVIDIA's kernel modules to support tegra chips (used in Jetson boards) drivers: use overlay instead of relative path 2021-05-04T15:10:02+00:00 Ankit Patel anpatel@nvidia.com 2021-04-27T15:43:17+00:00 9f1623fb5112ad33e7432fe2303a8d789b37364c Modified misc/tegra-cec and video/tegra/dc NVIDIA git repo Makefile, Now overlay macro will be used instead of relative path from kernel source tree, to find the included header file. Bug 200606454 Signed-off-by: Ankit Patel <anpatel@nvidia.com> Change-Id: I684388e9c81be94915c05db3cdae8b6100c6db91 (cherry picked from commit cc443ca25e19811feb0fba17e4ce7c2b6fcd6962) Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2522483 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Bibek Basu <bbasu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> 
Modified misc/tegra-cec and video/tegra/dc NVIDIA git repo Makefile, Now
overlay macro will be used instead of relative path from kernel source
tree, to find the included header file.

Bug 200606454

Signed-off-by: Ankit Patel <anpatel@nvidia.com>
Change-Id: I684388e9c81be94915c05db3cdae8b6100c6db91
(cherry picked from commit cc443ca25e19811feb0fba17e4ce7c2b6fcd6962)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2522483
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
misc: Tegra CEC Support 2017-03-21T09:38:25+00:00 Ankit Pashiney apashiney@nvidia.com 2013-04-02T04:59:36+00:00 3d7c8220bb29dd68e6f611c89741691b15ffb0a9 Bug 1258710 Change-Id: Ie449d4b8a28388087b601a0332eb065488a32009 Signed-off-by: Ankit Pashiney <apashiney@nvidia.com> Reviewed-on: http://git-master/r/215363 (cherry picked from commit e156fdeb84a7f750b602c746489538f5b29837cd) Reviewed-on: http://git-master/r/1164171 (cherry picked from commit 64c30ff47c90f4dbf659570e9aaeea1270b9f756) 
Bug 1258710

Change-Id: Ie449d4b8a28388087b601a0332eb065488a32009
Signed-off-by: Ankit Pashiney <apashiney@nvidia.com>
Reviewed-on: http://git-master/r/215363
(cherry picked from commit e156fdeb84a7f750b602c746489538f5b29837cd)
Reviewed-on: http://git-master/r/1164171
(cherry picked from commit 64c30ff47c90f4dbf659570e9aaeea1270b9f756)
misc: tegra-cec: Initial CEC Driver for T3x platform 2017-03-21T09:38:23+00:00 Ankit Pashiney apashiney@nvidia.com 2012-06-20T03:10:11+00:00 7941b5607acd87261d46f64da6226e0134693c69 READ API: read API ignores count and will always return 16 bit data. read API expects user to supply it with min of 16 bits data it returns CEC packet in following format bit 0-7: data bit 8: EOM bit 9: ACK WRITE API: write API ignores count and will always accept 32 bit data. write API expects user to supply it with min of 32 bits data it accepts CEC packet supllied in following format bit 0-7: data bit 8: EOM bit 12: Address mode, 0 = Direct, 1 = Broadcast bit 16: Generate Start bit, 0 = Disable, 1 = Enable bit 17: Retry frame, 0 = Disable, 1 = Enable Logical address is set to 4, as of now there is no mechanism to change this address from userspace. Driver is disabled by default in Kconfig Bug 200198493 Change-Id: Ia3835cec0bb717e63dabca5c5fcb1236847bf492 Reviewed-on: http://git-master/r/1164135 (cherry picked from commit 955ec819872e66c4732b38cd74c7ff3a302d95f2) Signed-off-by: Chun XU <chunx@nvidia.com> 
READ API:
	read API ignores count and will always return 16 bit data.
	read API expects user to supply it with min of 16 bits data
	it returns CEC packet in following format
	bit 0-7: data
	bit 8: EOM
	bit 9: ACK

WRITE API:
	write API ignores count and will always accept 32 bit data.
	write API expects user to supply it with min of 32 bits data
	it accepts CEC packet supllied in following format
	bit 0-7: data
	bit 8: EOM
	bit 12: Address mode, 0 = Direct, 1 = Broadcast
	bit 16: Generate Start bit, 0 = Disable, 1 = Enable
	bit 17: Retry frame, 0 = Disable, 1 = Enable

	Logical address is set to 4, as of now there is no mechanism to change this
	address from userspace.

Driver is disabled by default in Kconfig

Bug 200198493

Change-Id: Ia3835cec0bb717e63dabca5c5fcb1236847bf492
Reviewed-on: http://git-master/r/1164135
(cherry picked from commit 955ec819872e66c4732b38cd74c7ff3a302d95f2)
Signed-off-by: Chun XU <chunx@nvidia.com>