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(parent: 2a0f927) | patch
drm/amd/display: Update CP property based on HW query
authorBhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Mon, 10 Jun 2019 20:06:05 +0000 (16:06 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 3 Oct 2019 14:10:58 +0000 (09:10 -0500)
commitda3fd7ac0bcf372cc57117bdfcd725cca7ef975a
treea3b6ad6d717b5c707b9a71ce448e4775a778c0c3tree | snapshot
parent2a0f92700fe348fd5785f87e4730ab1c5398157acommit | diff
drm/amd/display: Update CP property based on HW query

[Why]
We need to use HW state to set content protection to ENABLED.
This way we know that the link is encrypted from the HW side

[How]
Create a workqueue that queries the HW every ~2seconds, and sets it to
ENABLED or DESIRED based on the result from the hardware

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c diff | blob | history
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c diff | blob | history
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.h diff | blob | history
Domain: System / Kernel;