drm/amd: Add dedicated helper for amdgpu_device_find_parent()

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There are a few cases that code walks up the topology to find the
link partner of the integrated switch in a dGPU.  Split this out
to a helper and call in all places.

This does have a functional change that amdgpu_device_gpu_bandwidth()
doesn't cache the internal link but only the parent.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Mario Limonciello 2026-05-20 10:46:17 -05:00 • committed by Alex Deucher

parent deb02080ca

commit eb53125a7a

1 changed files with 23 additions and 21 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

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