fdt_support: Add fdt_for_each_node_by_compatible() helper macro
Add macro fdt_for_each_node_by_compatible() to allow iterating over
fdt nodes by compatible string.
Convert various usages of
off = fdt_node_offset_by_compatible(fdt, start, compat);
while (off > 0) {
code();
off = fdt_node_offset_by_compatible(fdt, off, compat);
}
and similar, to
fdt_for_each_node_by_compatible(off, fdt, start, compat)
code();
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/fdt_support.h b/include/fdt_support.h
index 8ec461a..852040f 100644
--- a/include/fdt_support.h
+++ b/include/fdt_support.h
@@ -289,6 +289,12 @@
phys_addr_t compat_off);
int fdt_node_offset_by_pathf(void *blob, const char *fmt, ...)
__attribute__ ((format (printf, 2, 3)));
+
+#define fdt_for_each_node_by_compatible(node, fdt, start, compat) \
+ for (node = fdt_node_offset_by_compatible(fdt, start, compat); \
+ node >= 0; \
+ node = fdt_node_offset_by_compatible(fdt, node, compat))
+
int fdt_set_phandle(void *fdt, int nodeoffset, uint32_t phandle);
unsigned int fdt_create_phandle(void *fdt, int nodeoffset);
unsigned int fdt_create_phandle_by_compatible(void *fdt, const char *compat);