clk_core_get_parent_by_index
return clk_core_get_parent_by_index(core, index);
parent = clk_core_get_parent_by_index(core, i);
parent = clk_core_get_parent_by_index(core, idx);
parent = clk_core_get_parent_by_index(hw->core, index);
tmp = clk_core_get_parent_by_index(core, i);
parent = clk_core_get_parent_by_index(core, i);