drm/i915/hdcp: Disable HDCP Line Rekeying for HDCP2.2 on HDMI
authorSuraj Kandpal <suraj.kandpal@intel.com>
Tue, 7 May 2024 06:22:44 +0000 (11:52 +0530)
committerAnimesh Manna <animesh.manna@intel.com>
Fri, 10 May 2024 07:42:53 +0000 (13:12 +0530)
commit6a3691ca4799997b90da50883c170edb67bd6c49
treea9ca8b3be896856524f2ea3675d7b3fb1e96610e
parent6907d4fa5ecac7b08fb5ee5536e48b0a3895be31
drm/i915/hdcp: Disable HDCP Line Rekeying for HDCP2.2 on HDMI

Disable HDCP Line Rekeying when HDCP ver > 1.4 and when we are
on HDMI TMDS operation for DISPLAY_VER >= 14.

--v2
-Wa to be mentioned in comments not in commit message [Jani]
-Remove blankline [Jani]

--v3
-No need to write what is being done in comments when code
is self explanatory [Jani]

--v4
-Add comment regarding need of this WA when in TMDS mode
[Chaitanya]
-Write in chicken register for MTL [CHaitanya]

--v5
-Fix comment [Chaitanya]
-Use correct set and clear value in intel_de_rmw [Chaitanya]

--v6
-No need to define C, D chicken bits it gets calculated [Animesh]

Bspec: 49273
Bspec: 69964
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240507062243.1076047-2-suraj.kandpal@intel.com
drivers/gpu/drm/i915/display/intel_hdcp.c
drivers/gpu/drm/i915/i915_reg.h