drm/i915/display: Enable DC3CO idle protocol in ALPM

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Add PR_ALPM_CTL_USE_DC3CO_IDLE_PROTOCOL bit definition and set it
when DC3CO is allowed.

Changes in v2:
- Squash "Define DC3CO idle protocol bit in PR_ALPM_CTL"
  into this patch (Uma Shankar)
- Use intel_display_power_dc3co_allowed(display)
  instead of intel_dc3co_allowed(state)

Changes in v3:
- check only intel_display_power_dc3co_allowed()
  before wiriting PR_ALPM_CTL_USE_DC3CO_IDLE_PROTOCOL (Jani Nikula)

BSpec: 75253
Signed-off-by: Dibin Moolakadan Subrahmanian <dibin.moolakadan.subrahmanian@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patch.msgid.link/20260616162154.2630995-12-dibin.moolakadan.subrahmanian@intel.com

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Dibin Moolakadan Subrahmanian 2026-06-16 21:51:49 +05:30 • committed by Animesh Manna

parent c525b2f81d

commit 645a651450

2 changed files with 6 additions and 0 deletions

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5

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

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1

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

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