drm/i915/hdcp: Disable HDCP Line Rekeying for HDCP2.2 on HDMI

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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

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This commit is contained in:

Suraj Kandpal 2024-05-07 11:52:44 +05:30 • committed by Animesh Manna

parent 6907d4fa5e

commit 6a3691ca47

2 changed files with 25 additions and 0 deletions

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23

drivers/gpu/drm/i915/display/intel_hdcp.c

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2

drivers/gpu/drm/i915/i915_reg.h

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