/* * Dummy clk implementations for powerpc. * These need to be overridden in platform code. */ #include <linux/clk.h>#include <linux/err.h>#include <linux/errno.h>#include <linux/export.h>#include <asm/clk_interface.h> struct clk_interface clk_functions; struct clk *clk_get(struct device *dev, const char *id){	if (clk_functions.clk_get)		return clk_functions.clk_get(dev, id);	return ERR_PTR(-ENOSYS);}EXPORT_SYMBOL(clk_get); void clk_put(struct clk *clk){	if (clk_functions.clk_put)		clk_functions.clk_put(clk);}EXPORT_SYMBOL(clk_put); int clk_enable(struct clk *clk){	if (clk_functions.clk_enable)		return clk_functions.clk_enable(clk);	return -ENOSYS;}EXPORT_SYMBOL(clk_enable); void clk_disable(struct clk *clk){	if (clk_functions.clk_disable)		clk_functions.clk_disable(clk);}EXPORT_SYMBOL(clk_disable); unsigned long clk_get_rate(struct clk *clk){	if (clk_functions.clk_get_rate)		return clk_functions.clk_get_rate(clk);	return 0;}EXPORT_SYMBOL(clk_get_rate); long clk_round_rate(struct clk *clk, unsigned long rate){	if (clk_functions.clk_round_rate)		return clk_functions.clk_round_rate(clk, rate);	return -ENOSYS;}EXPORT_SYMBOL(clk_round_rate); int clk_set_rate(struct clk *clk, unsigned long rate){	if (clk_functions.clk_set_rate)		return clk_functions.clk_set_rate(clk, rate);	return -ENOSYS;}EXPORT_SYMBOL(clk_set_rate); struct clk *clk_get_parent(struct clk *clk){	if (clk_functions.clk_get_parent)		return clk_functions.clk_get_parent(clk);	return ERR_PTR(-ENOSYS);}EXPORT_SYMBOL(clk_get_parent); int clk_set_parent(struct clk *clk, struct clk *parent){	if (clk_functions.clk_set_parent)		return clk_functions.clk_set_parent(clk, parent);	return -ENOSYS;}EXPORT_SYMBOL(clk_set_parent);