ICL_PW_CTL_IDX_AUX_TBT1
I915_PW("AUX_TBT1", &icl_pwdoms_aux_tbt1, .hsw.idx = ICL_PW_CTL_IDX_AUX_TBT1),
((pw_idx) - ICL_PW_CTL_IDX_AUX_TBT1 + AUX_CH_C)