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| author | Tom Rini <trini@konsulko.com> | 2019-04-13 08:27:35 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-04-13 08:27:35 -0400 |
| commit | cf5eebeb18f7790d5030eb94f51fca0ebcd6e406 (patch) | |
| tree | f4c9c40f9353fbe4104875779c7eedd3ed2342cc /scripts/dtc/libfdt/libfdt.h | |
| parent | 0a5228be868622894a5f8f226203cd7bac562187 (diff) | |
| parent | 73c02e5e4fc1ef53d06289232edd6cc52e3d73f6 (diff) | |
Merge tag 'pull-12apr19' of git://git.denx.de/u-boot-dm
fdtdec tests and improvements for carve-outs
pinctrl race-condition fix
various other fixes in sandbox, sound, mkimage, etc.
Diffstat (limited to 'scripts/dtc/libfdt/libfdt.h')
| -rw-r--r-- | scripts/dtc/libfdt/libfdt.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/scripts/dtc/libfdt/libfdt.h b/scripts/dtc/libfdt/libfdt.h index fd73688f9e9..cf86ddba881 100644 --- a/scripts/dtc/libfdt/libfdt.h +++ b/scripts/dtc/libfdt/libfdt.h @@ -139,6 +139,10 @@ #define FDT_ERR_MAX 17 +/* constants */ +#define FDT_MAX_PHANDLE 0xfffffffe + /* Valid values for phandles range from 1 to 2^32-2. */ + /**********************************************************************/ /* Low-level functions (you probably don't need these) */ /**********************************************************************/ @@ -314,6 +318,21 @@ const char *fdt_string(const void *fdt, int stroffset); uint32_t fdt_get_max_phandle(const void *fdt); /** + * fdt_generate_phandle - return a new, unused phandle for a device tree blob + * @fdt: pointer to the device tree blob + * @phandle: return location for the new phandle + * + * Walks the device tree blob and looks for the highest phandle value. On + * success, the new, unused phandle value (one higher than the previously + * highest phandle value in the device tree blob) will be returned in the + * @phandle parameter. + * + * Returns: + * 0 on success or a negative error-code on failure + */ +int fdt_generate_phandle(const void *fdt, uint32_t *phandle); + +/** * fdt_num_mem_rsv - retrieve the number of memory reserve map entries * @fdt: pointer to the device tree blob * |