drm/amd/display: Test HPD handler HDCP and detect

Browse source

[WHAT]
handle_hpd_irq_helper() never ran its HDCP reset, its forced
connector branch or its successful re-detect branch.

[HOW]
Add a minimal HDCP work queue fixture and three tests: an HPD on
a driver that carries an HDCP work queue, which must reset the display
and flag the connector state; a connector forced on that reports no
connection and is emulated instead of detected; and a successful
re-detect that notifies userspace.

Assisted-by: Copilot:Claude-Opus-5
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Alex Hung 2026-09-04 00:00:59 -06:00 • committed by Alex Deucher

parent ed32f69ac5

commit eaf6816305

1 changed files with 119 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

119

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

View file