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64aa07084a
[Why & How] Add 6 KUnit test cases exercising the new helper: - hyst_wait_no_delay: HYSTERESIS_WAITING + delay_ns==0 returns IMMEDIATE (covers null stream / no hysteresis config). - hyst_wait_with_delay: HYSTERESIS_WAITING + delay_ns>0 returns DM_ISM_NUM_EVENTS (timer scheduled, no immediate event). - opt_idle_no_sso_delay: OPTIMIZED_IDLE + sso_delay_ns==0 returns IMMEDIATE (skip SSO, transition immediately). - opt_idle_with_sso_delay: OPTIMIZED_IDLE + sso_delay_ns>0 returns DM_ISM_NUM_EVENTS (SSO timer scheduled). - timer_aborted: TIMER_ABORTED always returns IMMEDIATE regardless of delay values. - no_action_state: all other states return DM_ISM_NUM_EVENTS. 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>