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8e8289a00e
For the ADL-P TBT mode the spec doesn't require blocking TC-cold by using the legacy AUX power domain. To avoid the timeouts that this would cause during PHY disconnect/reconnect sequences (which will be more frequent after a follow-up change) use the TC_COLD_OFF power domain in TBT mode on all platforms. On TGL this power domain blocks TC-cold via a PUNIT command, while on other platforms the domain just takes a runtime PM reference. If the HPD live status indicates that the port mode needs to be reset - for instance after switching from TBT to a DP-alt sink - still take the AUX domain, since the IOM firmware handshake requires this. v2: Rebased on v2 of the previous patch. Cc: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210929132833.2253961-5-imre.deak@intel.com |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.