drm/amd/display: Add KUnit tests for amdgpu_dm_crtc

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Add KUnit coverage for functions in amdgpu_dm_crtc.c:
- amdgpu_dm_crtc_modeset_required: verify active+needs_modeset
  combinations (mode_changed, active_changed, connectors_changed)
- amdgpu_dm_crtc_vrr_active_irq: verify all VRR state enum values
- amdgpu_dm_crtc_vrr_active: verify all VRR state enum values
- amdgpu_dm_is_headless: null adev, no connectors, writeback-only,
  disconnected display, connected display, and mixed connector cases
- amdgpu_dm_crtc_helper_mode_fixup: verify it accepts the mode
- amdgpu_dm_crtc_set_vupdate_irq: verify the otg_inst == -1 early
  return using a DRM mock device
- idle_create_workqueue: verify the idle workqueue is allocated and
  initialized in a disabled, non-running state

Assisted-by: Copilot:Claude-Opus-4.8
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Alex Hung 2026-04-30 16:29:06 -06:00 • committed by Alex Deucher

parent 55d6cc7dae

commit dbfad676ff

4 changed files with 550 additions and 3 deletions

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14

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c

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6

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h

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1

drivers/gpu/drm/amd/display/amdgpu_dm/tests/Makefile

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532

drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_crtc_test.c

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