tegra_sor_set_parent_clock
err = tegra_sor_set_parent_clock(sor, sor->clk_safe);
err = tegra_sor_set_parent_clock(sor, sor->clk_safe);
err = tegra_sor_set_parent_clock(sor, sor->clk_pad);
err = tegra_sor_set_parent_clock(sor, sor->clk_safe);
err = tegra_sor_set_parent_clock(sor, sor->clk_safe);
err = tegra_sor_set_parent_clock(sor, sor->clk_pad);