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f84c48048b
[Why & How] Separate the "should we emit IMMEDIATE?" decision into a pure, side-effect-free helper so it can be tested in isolation without a full DRM context. - dm_ism_dispatch_next_event(current_state, delay_ns, sso_delay_ns) returns DM_ISM_EVENT_IMMEDIATE when the state requires an immediate follow-up (HYSTERESIS_WAITING with zero delay, OPTIMIZED_IDLE with zero SSO delay, or TIMER_ABORTED), and DM_ISM_NUM_EVENTS otherwise. - Removes the passthrough event parameter that was always DM_ISM_NUM_EVENTS at the call site, making the sentinel explicit. - Drops the now-unused event parameter from dm_ism_dispatch_power_state. Assisted-by: Copilot:Claude-Sonnet-4.6 Reviewed-by: Ray Wu <ray.wu@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Ray Wu <ray.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>