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media: hdmi: cec: replace broken link to HDMI specs 

Current link died, according to Wayback Machine, back in 2017. And the
website is completely down since 2019. Moreover, there was a custom
cover on that PDF, i.e. it was modified.

According to HDMI licence agreement (LA), HDMI specification and technical
information are supposed to be hosted on www.hdmi.org exclusively, and not
redistributed by third-parties.

Sure, there are still many more or less reliable "mirrors" out there with
a direct download straight from a search engine's page. However, for
example, from FPGA4fun[1] website it was removed "per HDMI LA request".

Unfortunately, the official download page is protected by email CAPTCHA,
but that seems to be the only legit way to obtain a copy.

[1] https://www.fpga4fun.com/HDMI.html

Signed-off-by: ivan tkachenko <me@ratijas.tk>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
ivan tkachenko 2020-12-23 22:43:54 +01:00 committed by Mauro Carvalho Chehab
parent 65fba0b15e
commit 711ae4f6f3
1 changed files with 1 additions and 1 deletions
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2
Documentation/driver-api/media/cec-core.rst
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@ -26,7 +26,7 @@ It is documented in the HDMI 1.4 specification with the new 2.0 bits documented
in the HDMI 2.0 specification. But for most of the features the freely available
HDMI 1.3a specification is sufficient:
http://www.microprocessor.org/HDMISpecification13a.pdf
https://www.hdmi.org/spec/index
CEC Adapter Interface