_unprepare(struct clk_hw *hw) {  struct clk_prcmu *clk = to_clk_prcmu(hw);   if (prcmu_request_clock(clk->cg_sel, false)) {   pr_err("clk_prcmu: %s failed to disable %s.\n", __func__,    __clk_get_name(hw->clk));   return;  }   if (clk->opp_requested) {   prcmu_request_ape_opp_000_voltage(false);   clk->opp_requested = 0;  }   clk->is_prepared = 0; }  static 