Imre Deak b2e00dd378 drm/i915: Use the AUX_IO power domain only for eDP/PSR port
Use the AUX_IO_A display power domain only for eDP on port A where PSR
is also supported. This is the case where DC states need to be enabled
while the output is enabled - ensured by AUX_IO_A domain not enabling
the DC_OFF power well. Otherwise port A can be treated the same way as
other ports with an external DP output: using the AUX_<port> domain
which disables the unrequired DC states.

This change prepares for the next patch enabling DC states on all ports
supporting eDP/PSR besides port A.

v2:
- Check the encoder PSR capability instead of PSR being enabled in the
  crtc_state, as the latter can be changed with a fastset.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221114122251.21327-5-imre.deak@intel.com
2022-11-18 17:28:31 +02:00
…
…
…
…
…
…
…
…
…
…
…
…
…
…
2022-10-23 15:27:33 -07:00
…

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.
S
Description
No description provided
Readme
5.7 GiB
Languages
C 96.9%
Assembly 0.9%
Rust 0.6%
Shell 0.6%
Python 0.5%
Other 0.3%