Commit 624cfca5 authored by Grant Likely's avatar Grant Likely
Browse files

of: Add helper for printing an of_phandle_args structure 



It is sometimes useful for debug to get the contents of an
of_phandle_args structure out into the kernel log.

Signed-off-by: default avatarGrant Likely <grant.likely@linaro.org>
parent 23616132

drivers/of/base.c

+9 −0
Original line number Diff line number Diff line
@@ -1185,6 +1185,15 @@ int of_property_count_strings(struct device_node *np, const char *propname) 
}

EXPORT_SYMBOL_GPL(of_property_count_strings);



void of_print_phandle_args(const char *msg, const struct of_phandle_args *args)

{

	int i;

	printk("%s %s", msg, of_node_full_name(args->np));

	for (i = 0; i < args->args_count; i++)

		printk(i ? ",%08x" : ":%08x", args->args[i]);

	printk("\n");

}



static int __of_parse_phandle_with_args(const struct device_node *np,

					const char *list_name,

					const char *cells_name,

drivers/of/irq.c

+3 −3
Original line number Diff line number Diff line
@@ -101,9 +101,9 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq) 
	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;

	int imaplen, match, i;



	pr_debug("of_irq_parse_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",

		 of_node_full_name(out_irq->np), out_irq->args[0], out_irq->args[1],

		 out_irq->args_count);

#ifdef DEBUG

	of_print_phandle_args("of_irq_parse_raw: ", out_irq);

#endif



	ipar = of_node_get(out_irq->np);

include/linux/of.h

+1 −0
Original line number Diff line number Diff line
@@ -275,6 +275,7 @@ extern int of_n_size_cells(struct device_node *np); 
extern const struct of_device_id *of_match_node(

	const struct of_device_id *matches, const struct device_node *node);

extern int of_modalias_node(struct device_node *node, char *modalias, int len);

extern void of_print_phandle_args(const char *msg, const struct of_phandle_args *args);

extern struct device_node *of_parse_phandle(const struct device_node *np,

					    const char *phandle_name,

					    int index);