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| author |   Anshuman Gupta <anshuman.gupta@intel.com> | 2021-01-11 13:41:08 +0530 |
|---|---|---|
| committer | Anshuman Gupta <anshuman.gupta@intel.com> | 2021-01-13 08:29:31 +0530 |
| commit | 1a67a168f57b68a63220871676a9e1e25ce3b867 (patch) | |
| tree | ec2b2894eb4874dbc70d66ebc092aa83691a5c95 /drivers/gpu/drm/i915/display/intel_dp_mst.c | |
| parent | drm/i915/hdcp: Move HDCP enc status timeout to header (diff) | |
| download | wireguard-linux-1a67a168f57b68a63220871676a9e1e25ce3b867.tar.xz wireguard-linux-1a67a168f57b68a63220871676a9e1e25ce3b867.zip | |
drm/i915/hdcp: HDCP stream encryption support
Both HDCP_{1.x,2.x} requires to select/deselect Multistream HDCP bit
in TRANS_DDI_FUNC_CTL in order to enable/disable stream HDCP
encryption over DP MST Transport Link.
HDCP 1.4 stream encryption requires to validate the stream encryption
status in HDCP_STATUS_{TRANSCODER,PORT} register driving that link
in order to enable/disable the stream encryption.
Both of above requirement are same for all Gen with respect to
B.Spec Documentation.
v2:
- Cosmetic changes function name, error msg print and
stream typo fixes. [Uma]
v3:
- uniformity for connector detail in DMESG. [Ram]
Cc: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Ramalingam C <ramalingam.c@intel.com>
Tested-by: Karthik B S <karthik.b.s@intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-8-anshuman.gupta@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
0 files changed, 0 insertions, 0 deletions