Mario Limonciello 38108fd273 drm/amd: Only run s3 or s0ix if system is configured properly
[ Upstream commit 04ef860469fda6a646dc841190d05b31fae68e8c ]

This will cause misconfigured systems to not run the GPU suspend
routines.

* In APUs that are properly configured system will go into s2idle.
* In APUs that are intended to be S3 but user selects
  s2idle the GPU will stay fully powered for the suspend.
* In APUs that are intended to be s2idle and system misconfigured
  the GPU will stay fully powered for the suspend.
* In systems that are intended to be s2idle, but AMD dGPU is also
  present, the dGPU will go through S3

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-02-23 12:03:07 +01:00
2021-10-18 20:22:03 -10:00
2021-10-28 12:17:01 -07:00
2022-02-16 12:56:41 +01:00

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.
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