drm/amd/display: Add missing CW4 programming for DCN30

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[Why]
To support inbox1 in CW4 we need to actually program CW4 instead of
region 4 for newer firmware.

This is done correctly on DCN20/DCN21 but this code wasn't added to
DCN30.

[How]
Copy over the missing code. It doesn't need address translation since
DCN30 uses virtual addressing.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Nicholas Kazlauskas 2020-07-07 11:37:14 -04:00 • committed by Alex Deucher

parent 714ec7a2bd

commit 497f15f2bd

1 changed files with 16 additions and 5 deletions

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drivers/gpu/drm/amd/display/dmub/src/dmub_dcn30.c

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