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dm: core: Introduce dev_read_alias_highest_id()

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It is wrapper for calling of_alias_get_highest_id() when live tree is
enabled and fdtdec_get_alias_highest_id() if not.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Michal Simek 2019-01-31 16:30:59 +01:00 • committed by Heiko Schocher
parent 003c9dc891
commit 83e4c7e9ff
2 changed files with 24 additions and 0 deletions
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8
drivers/core/read.c
View file

@ -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);
}

16
include/dm/read.h
View file

@ -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 */
/**