drm/amd/display: add HDCP caps debugfs

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Add debugfs to get HDCP capability. This is also useful for
kms_content_protection igt test.

Use:
	cat /sys/kernel/debug/dri/0/DP-1/hdcp_sink_capability
	cat /sys/kernel/debug/dri/0/HDMI-A-1/hdcp_sink_capability

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Bhawanpreet Lakha 2020-02-24 14:55:53 -05:00 • committed by Alex Deucher

parent fe8db3bcf2

commit 5f8693796c

3 changed files with 112 additions and 0 deletions

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61

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

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47

drivers/gpu/drm/amd/display/dc/core/dc_link.c

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4

drivers/gpu/drm/amd/display/dc/dc_link.h

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