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

[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>

0 files changed, 0 insertions, 0 deletions