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of: add 'const' for of_parse_phandle parameter *np 

The existing function does not change the passed device_node pointer. It is
only handed to of_get_property which itself takes a const struct device_node.

of_parse_phandle() can therefore take a const pointer as well.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
[grant.likely: drop extraneous whitespace change]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Steffen Trumtrar 2012-11-22 12:16:43 +01:00 committed by Grant Likely
parent 4a92a385f8
commit b8fbdc42c5
2 changed files with 4 additions and 4 deletions
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4
drivers/of/base.c
View File

@ -978,8 +978,8 @@ EXPORT_SYMBOL_GPL(of_property_count_strings);
* Returns the device_node pointer with refcount incremented. Use
* of_node_put() on it when done.
*/
struct device_node *
of_parse_phandle(struct device_node *np, const char *phandle_name, int index)
struct device_node *of_parse_phandle(const struct device_node *np,
const char *phandle_name, int index)
{
const __be32 *phandle;
int size;

4
include/linux/of.h
View File

@ -270,7 +270,7 @@ 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 struct device_node *of_parse_phandle(struct device_node *np,
extern struct device_node *of_parse_phandle(const struct device_node *np,
const char *phandle_name,
int index);
extern int of_parse_phandle_with_args(struct device_node *np,
@ -438,7 +438,7 @@ static inline int of_property_match_string(struct device_node *np,
return -ENOSYS;
}
static inline struct device_node *of_parse_phandle(struct device_node *np,
static inline struct device_node *of_parse_phandle(const struct device_node *np,
const char *phandle_name,
int index)
{