drm/amdgpu: Export ip_discovery sysfs on probe failure

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When driver probe fails (missing firmware, unsupported hardware, etc.),
the entire device is torn down including the ip_discovery sysfs folder,
preventing users from identifying what hardware is present.

Export ip_discovery sysfs even when probe fails by creating it early
in the probe flow and tying its lifetime to the PCI device rather than
the driver. The sysfs folder persists across probe failures and module
reloads, but is cleaned up on driver unbind.

Acked-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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This commit is contained in:

Mario Limonciello 2026-06-12 11:44:43 -05:00 • committed by Alex Deucher

parent d3f30034f8

commit 402e04f11f

3 changed files with 257 additions and 35 deletions

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287

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

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5

drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h

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2

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

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