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| author | Teresa Remmet <t.remmet@phytec.de> | 2019-02-13 09:34:25 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-02-13 15:43:19 +0100 |
| commit | b1ffbd0c80ed0c7bb7612d69f0c43049f3008315 (patch) | |
| tree | c2f0e14cb2a8f33fa96f34af5d5de50f78dc2f9f | |
| parent | e63c53267c320a33aee111feb9d340b2f3bad0c1 (diff) | |
| download | barebox-b1ffbd0c80ed0c7bb7612d69f0c43049f3008315.tar.gz barebox-b1ffbd0c80ed0c7bb7612d69f0c43049f3008315.tar.xz | |
drivers: of: Add function to enable and register a device by alias
In some cases node names are not unique and passing the full path is really long.
So make add a new device by passing the alias string possible.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/of/platform.c | 19 | ||||
| -rw-r--r-- | include/of.h | 8 |
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c index ef8969ca8b..d3795d799a 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -207,6 +207,25 @@ struct device_d *of_device_enable_and_register_by_name(const char *name) } EXPORT_SYMBOL(of_device_enable_and_register_by_name); +/** + * of_device_enable_and_register_by_alias - Enable and register device by alias + * @name: alias of the device node + * + * Returns pointer to created platform device, or NULL if a device was not + * registered. Unavailable devices will not get registered. + */ +struct device_d *of_device_enable_and_register_by_alias(const char *alias) +{ + struct device_node *node; + + node = of_find_node_by_alias(NULL, alias); + if (!node) + return NULL; + + return of_device_enable_and_register(node); +} +EXPORT_SYMBOL(of_device_enable_and_register_by_alias); + #ifdef CONFIG_ARM_AMBA static struct device_d *of_amba_device_create(struct device_node *np) { diff --git a/include/of.h b/include/of.h index 184acb4741..b5f54dd4e5 100644 --- a/include/of.h +++ b/include/of.h @@ -255,6 +255,8 @@ extern int of_platform_populate(struct device_node *root, extern struct device_d *of_find_device_by_node(struct device_node *np); extern struct device_d *of_device_enable_and_register(struct device_node *np); extern struct device_d *of_device_enable_and_register_by_name(const char *name); +extern struct device_d *of_device_enable_and_register_by_alias( + const char *alias); struct cdev *of_parse_partition(struct cdev *cdev, struct device_node *node); int of_parse_partitions(struct cdev *cdev, struct device_node *node); @@ -670,6 +672,12 @@ static inline struct device_d *of_device_enable_and_register_by_name( return NULL; } +static inline struct device_d *of_device_enable_and_register_by_alias( + const char *alias) +{ + return NULL; +} + static inline int of_register_fixup(int (*fixup)(struct device_node *, void *), void *context) { |