diff options
| author | Jean-Jacques Hiblot <jjhiblot@ti.com> | 2017-09-21 17:03:09 +0200 |
|---|---|---|
| committer | Jaehoon Chung <jh80.chung@samsung.com> | 2017-09-22 23:23:54 +0900 |
| commit | b5a144a5014be5e3b065e2061a7d17e653d739ae (patch) | |
| tree | 159e5c65330d4e5cfff935a50d6030937545dcc8 | |
| parent | b24633df31de1b376b7d8fff46540f45d5a352df (diff) | |
dm: core: Add functions to get strings and the string count from a stringlist
dev_read_string_count() is used to get the number of strings in a
stringlist.
dev_read_string_index() is used to get a string in the stringlist based on
its position in the list.
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
| -rw-r--r-- | drivers/core/read.c | 11 | ||||
| -rw-r--r-- | include/dm/read.h | 36 |
2 files changed, 47 insertions, 0 deletions
diff --git a/drivers/core/read.c b/drivers/core/read.c index 065589a6ab..eacf1716fd 100644 --- a/drivers/core/read.c +++ b/drivers/core/read.c @@ -81,6 +81,17 @@ int dev_read_stringlist_search(struct udevice *dev, const char *property, return ofnode_stringlist_search(dev_ofnode(dev), property, string); } +int dev_read_string_index(struct udevice *dev, const char *propname, int index, + const char **outp) +{ + return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp); +} + +int dev_read_string_count(struct udevice *dev, const char *propname) +{ + return ofnode_read_string_count(dev_ofnode(dev), propname); +} + int dev_read_phandle_with_args(struct udevice *dev, const char *list_name, const char *cells_name, int cell_count, int index, diff --git a/include/dm/read.h b/include/dm/read.h index e7f71256a8..8114037e97 100644 --- a/include/dm/read.h +++ b/include/dm/read.h @@ -166,6 +166,29 @@ int dev_read_stringlist_search(struct udevice *dev, const char *property, const char *string); /** + * dev_read_string_index() - obtain an indexed string from a string list + * + * @dev: device to examine + * @propname: name of the property containing the string list + * @index: index of the string to return + * @out: return location for the string + * + * @return: + * length of string, if found or -ve error value if not found + */ +int dev_read_string_index(struct udevice *dev, const char *propname, int index, + const char **outp); + +/** + * dev_read_string_count() - find the number of strings in a string list + * + * @dev: device to examine + * @propname: name of the property containing the string list + * @return: + * number of strings in the list, or -ve error value if not found + */ +int dev_read_string_count(struct udevice *dev, const char *propname); +/** * dev_read_phandle_with_args() - Find a node pointed by phandle in a list * * This function is useful to parse lists of phandles and their arguments. @@ -451,6 +474,19 @@ static inline int dev_read_stringlist_search(struct udevice *dev, return ofnode_stringlist_search(dev_ofnode(dev), propname, string); } +static inline int dev_read_string_index(struct udevice *dev, + const char *propname, int index, + const char **outp) +{ + return ofnode_read_string_index(dev_ofnode(dev), propname, index, outp); +} + +static inline int dev_read_string_count(struct udevice *dev, + const char *propname) +{ + return ofnode_read_string_count(dev_ofnode(dev), propname); +} + static inline int dev_read_phandle_with_args(struct udevice *dev, const char *list_name, const char *cells_name, int cell_count, int index, struct ofnode_phandle_args *out_args) |