Nicholas Kazlauskas 27750e176a drm/amd/display: Allow DTBCLK disable for DCN35
[Why]
DTBCLK is enabled on idle and it will burn power.

[How]
There's a few issues here:
- Always enabling DTBCLK on clock manager init
- Setting refclk when DTBCLK is supposed to be disabled
- Not applying the correct calculated version refclk, but instead the
  base value which might be zero

On dtbclk_en change we'll message PMFW to enable or disable the clock
accordingly.

The DTBDTO will be then based on refclk, but it will be set to the
default fixed value if there was nothing calculated in DML despite the
clock being considered enabled.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-29 18:11:03 -05:00
2023-11-24 09:45:40 -08:00
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2023-11-24 09:45:40 -08:00
2023-11-04 08:07:19 -10:00
2023-11-03 09:28:53 -10:00
2023-11-03 09:48:17 -10:00
2023-11-17 09:05:31 -05:00
2023-09-07 13:52:20 -07:00
2022-09-28 09:02:20 +02:00
2022-10-10 12:00:45 -07:00
2023-11-26 19:48:20 -08:00
2023-11-26 19:59:33 -08:00

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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