diff options
| -rw-r--r-- | drivers/core/read.c | 8 | ||||
| -rw-r--r-- | include/dm/read.h | 16 |
2 files changed, 24 insertions, 0 deletions
diff --git a/drivers/core/read.c b/drivers/core/read.c index 3c46b3674e..6bda077a34 100644 --- a/drivers/core/read.c +++ b/drivers/core/read.c @@ -264,3 +264,11 @@ u64 dev_translate_address(struct udevice *dev, const fdt32_t *in_addr) { return ofnode_translate_address(dev_ofnode(dev), in_addr); } + +int dev_read_alias_highest_id(const char *stem) +{ + if (of_live_active()) + return of_alias_get_highest_id(stem); + + return fdtdec_get_alias_highest_id(gd->fdt_blob, stem); +} diff --git a/include/dm/read.h b/include/dm/read.h index 389e30e7fb..60b727cbd8 100644 --- a/include/dm/read.h +++ b/include/dm/read.h @@ -510,6 +510,17 @@ int dev_read_resource_byname(struct udevice *dev, const char *name, * @return the translated address; OF_BAD_ADDR on error */ u64 dev_translate_address(struct udevice *dev, const fdt32_t *in_addr); + +/** + * dev_read_alias_highest_id - Get highest alias id for the given stem + * @stem: Alias stem to be examined + * + * The function travels the lookup table to get the highest alias id for the + * given alias stem. + * @return alias ID, if found, else -1 + */ +int dev_read_alias_highest_id(const char *stem); + #else /* CONFIG_DM_DEV_READ_INLINE is enabled */ static inline int dev_read_u32(struct udevice *dev, @@ -740,6 +751,11 @@ static inline u64 dev_translate_address(struct udevice *dev, const fdt32_t *in_a return ofnode_translate_address(dev_ofnode(dev), in_addr); } +static inline int dev_read_alias_highest_id(const char *stem) +{ + return fdtdec_get_alias_highest_id(gd->fdt_blob, stem); +} + #endif /* CONFIG_DM_DEV_READ_INLINE */ /** |