drm/i915/cmtg: Program VRR control register for CMTG transcoder

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Add intel_cmtg_set_vrr_ctl() to program TRANS_VRR_CTL for the
CMTG transcoder. Purposefully avoid using the existing VRR enable
path, as many of its operations are not needed for CMTG.

v2: Use sw state instead of reading from hardware. [Jani]
v3: Program cmtg vrr control register along with vrr transcoder
registers. [R-b from Uma]
v4: Split out from vrr timing registers programming.

Bspec: 68989
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patch.msgid.link/20260615200339.885190-14-animesh.manna@intel.com

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Animesh Manna 2026-06-16 01:33:30 +05:30

parent 7b1c73d0f7

commit 834ae6bb79

3 changed files with 23 additions and 0 deletions

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20

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

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1

drivers/gpu/drm/i915/display/intel_cmtg.h

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

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