int omap2_clk_set_parent(struct clk *clk, struct clk *new_parent);
int omap2_dpll_set_rate_tolerance(struct clk *clk, unsigned int tolerance);
long omap2_dpll_round_rate(struct clk *clk, unsigned long target_rate);
+struct clk *omap2_clk_get_parent(struct clk *clk);
#ifdef CONFIG_OMAP_RESET_CLOCKS
void omap2_clk_disable_unused(struct clk *clk);