drm/i915/display: Add helper to enable DC counter

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Add xe3lpd_enable_dc_count() to enable the DC_COUNT_EN register.
Also define DC_STATE_DC3CO_RESIDENCY to read DC3CO residency.
Needed to retrieve DC residency for DC3CO.

v2:
- Add a guard to xe3lpd_enable_dc_count() instead of relying
on caller. [Animesh]

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/20260616162154.2630995-14-dibin.moolakadan.subrahmanian@intel.com

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

parent d49e3c5c81

commit 3f0f348606

4 changed files with 16 additions and 0 deletions

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8

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

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1

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

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5

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

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2

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

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