drm/amd/display: add GPIO HW translation helpers

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Add generic helpers and lookup table types for GPIO hardware
translation.

The new helpers provide reusable conversions between GPIO IDs,
register offsets and DDC lines, allowing ASIC-specific drivers
to replace large switch statements with static lookup tables.

No functional changes intended.

Signed-off-by: Guilherme Ivo Bozi <guilherme.bozi@usp.br>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Acked-by: George Zhang <george.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Guilherme Ivo Bozi 2026-06-11 16:49:01 -03:00 • committed by Alex Deucher

parent c696571585

commit 21b62d3a52

3 changed files with 155 additions and 0 deletions

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86

drivers/gpu/drm/amd/display/dc/gpio/hw_translate.c

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21

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

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48

drivers/gpu/drm/amd/display/include/gpio_types.h

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