drm/amd/display: Add DP required HBlank size calc to link interface

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[Why]
Some features, such as HBlank expansion/reduction, needs to know how
much HBlank is required to support basic audio.

[How]
Add interface to link to calculate required HBlank size for a given
link + timing combination to support basic audio (i.e. 2-channel 48KHz).

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

George Shen 2024-12-09 10:29:31 -05:00 • committed by Alex Deucher

parent e79cba63de

commit 3ed56d9e8f

6 changed files with 215 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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8

drivers/gpu/drm/amd/display/dc/core/dc_link_exports.c

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18

drivers/gpu/drm/amd/display/dc/dc.h

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4

drivers/gpu/drm/amd/display/dc/inc/link.h

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1

drivers/gpu/drm/amd/display/dc/link/link_factory.c

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179

drivers/gpu/drm/amd/display/dc/link/link_validation.c

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5

drivers/gpu/drm/amd/display/dc/link/link_validation.h

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