tegra124_car_clock_find
tclk_parent = tegra124_car_clock_find(tclk->parent);
return tegra124_car_clock_find(tmux->parents[src]);
tclk_parent = tegra124_car_clock_find(tclk->parent);
return tegra124_car_clock_find(name);
tclk = tegra124_car_clock_find(name);