On May 27, 2016, at 12:13 , Maxime Ripard maxime.ripard@free-electrons.com wrote:
Implement a macro based on fdt_first_property_offset and fdt_next_property_offset that provides a convenience to iterate over all the properties of a given node.
Signed-off-by: Maxime Ripard maxime.ripard@free-electrons.com
include/libfdt.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/include/libfdt.h b/include/libfdt.h index 74b1d149c2dd..4e8eb9ede3a4 100644 --- a/include/libfdt.h +++ b/include/libfdt.h @@ -441,6 +441,30 @@ int fdt_first_property_offset(const void *fdt, int nodeoffset); int fdt_next_property_offset(const void *fdt, int offset);
/**
- fdt_for_each_property - iterate over all properties of a node
- @fdt: FDT blob (const void *)
- @node: node offset (int)
- @property: property offset (int)
- This is actually a wrapper around a for loop and would be used like so:
- fdt_for_each_property(fdt, node, property) {
...
use property
...
- }
- Note that this is implemented as a macro and property is used as
- iterator in the loop. It should therefore be a locally allocated
- variable. The node variable on the other hand is never modified, so
- it can be constant or even a literal.
- */
+#define fdt_for_each_property(fdt, node, property) \
- for (property = fdt_first_property_offset(fdt, node); \
property >= 0; \property = fdt_next_property_offset(fdt, property))+/**
- fdt_get_property_by_offset - retrieve the property at a given offset
- @fdt: pointer to the device tree blob
- @offset: offset of the property to retrieve
-- 2.8.2
Acked-by: Pantelis Antoniou pantelis.antoniou@konsulko.com
I’d like to see this merged in dtc upstream please too.