drm/amd/display: Fix DPIA number and driver ID field issue

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[Why]
The DPIA number field is 6 bits in the spec.
In dp_type, it only defines 5 bits.
The driver ID is only 4 bits in the spec.

[How]
Set DPIA number field size to 6.
And only update 4 bits for driver id.

Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com>
Signed-off-by: Cruise Hung <Cruise.Hung@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Cruise Hung 2026-02-10 17:40:42 +08:00 • committed by Alex Deucher

parent d8f6c978fd

commit cf1b9cbb59

2 changed files with 3 additions and 3 deletions

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4

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

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2

drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_dpia.c

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