drm/i915/cmtg: Add trigger to enable/disable cmtg

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Enable CMTG with fixed refresh rate mode and with dynamic
dc state enabled.

Disable CMTG with transcoder disable or if there is a transition
to vrr mode from fixed refresh rate mode.

v2:
- Move the enabled flag update to avoid issue in the disable timeout
path. [Uma]

v3:
- Introduce intel_cmtg_program() rather calling multiple cmtg
functions. [Dibin]
- Set clock select before cmtg disable as can lost during dc6
entry. [Dibin]
- Disable cmtg interrupt in crtc-disable(). [Dibin]
- Got R-b from Uma.

v4:
- Simplify the code further by moving for_each_new_intel_crtc_in_state
inside intel_cmtg.c.

Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Link: https://patch.msgid.link/20260615200339.885190-21-animesh.manna@intel.com

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This commit is contained in:

Animesh Manna 2026-06-16 01:33:37 +05:30

parent 81c7da958f

commit c588a32418

3 changed files with 41 additions and 15 deletions

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37

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

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5

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

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14

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

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