diff options
| author | Joerg Roedel <jroedel@suse.de> | 2016-04-04 17:49:20 +0200 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2016-04-19 17:25:14 -0500 |
| commit | f623ce95a51baee6a6638f0b025efc0229a9ac0d (patch) | |
| tree | a54f340319d4a3b5968263367da290c1a396b9f8 /include/linux/of.h | |
| parent | 2021bd01ffccf2728a591070008d7de5bc41306a (diff) | |
of: Introduce of_for_each_phandle() helper macro
With this macro any user can easily iterate over a list of
phandles. The patch also converts __of_parse_phandle_with_args()
to make use of the macro.
The of_count_phandle_with_args() function is not converted,
because the macro hides the return value of of_phandle_iterator_init(),
which is needed in there.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'include/linux/of.h')
| -rw-r--r-- | include/linux/of.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/of.h b/include/linux/of.h index 1f5e108f6716..b0b80716fbfb 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -908,6 +908,12 @@ static inline int of_property_read_s32(const struct device_node *np, return of_property_read_u32(np, propname, (u32*) out_value); } +#define of_for_each_phandle(it, err, np, ln, cn, cc) \ + for (of_phandle_iterator_init((it), (np), (ln), (cn), (cc)), \ + err = of_phandle_iterator_next(it); \ + err == 0; \ + err = of_phandle_iterator_next(it)) + #define of_property_for_each_u32(np, propname, prop, p, u) \ for (prop = of_find_property(np, propname, NULL), \ p = of_prop_next_u32(prop, NULL, &u); \ |