drm/i915/dmc: Set DMC_EVT_CTL_ENABLE for disabled event handlers as well

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DMC_EVT_CTL_ENABLE cannot be cleared once set. So currently
any event we never enable will have DMC_EVT_CTL_ENABLE cleared,
whereas any event which has been enabled even once will have
DMC_EVT_CTL_ENABLE set. For that reason assert_dmc_loaded() has
a special case to ignore any mismatches in DMC_EVT_CTL_ENABLE.

Eliminate the special case by always configuring DMC_EVT_CTL_ENABLE
based on the original firmware event definition. Now all
event handlers will have DMC_EVT_CTL_ENABLE set, whether or
not the event has been enabled in the past.

All disabled event handlers will still have the event type set
to DMC_EVENT_FALSE so they will not actually trigger despite
DMC_EVT_CTL_ENABLE being set.

Tested-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20251022100718.24803-4-ville.syrjala@linux.intel.com
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Tested-by: Imre Deak <imre.deak@intel.com>

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This commit is contained in:

Ville Syrjälä 2025-10-22 13:07:18 +03:00

parent 9c2503beb8

commit 6b1209d158

1 changed files with 11 additions and 11 deletions

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

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