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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2024-01-10 01:14:50 +0000
committerGeert Uytterhoeven <geert+renesas@glider.be>2024-01-23 09:38:30 +0100
commit28c5d4e40752fc39507a647b20649c5ca1cf33b7 (patch)
tree89baf1d060e94cff251b801e7c8a3c9c85a1f49e /include/linux/of.h
parent8918283af1bd68f46f75164289492988dbc67a41 (diff)
of: Add for_each_reserved_child_of_node()
We would like to use for_each loop for status = "reserved" nodes. Add for_each_reserved_child_of_node() for it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/87a5pegfau.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Diffstat (limited to 'include/linux/of.h')
-rw-r--r--include/linux/of.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/of.h b/include/linux/of.h
index 6a9ddf20e79a..331e05918f11 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -294,6 +294,8 @@ extern struct device_node *of_get_next_child(const struct device_node *node,
struct device_node *prev);
extern struct device_node *of_get_next_available_child(
const struct device_node *node, struct device_node *prev);
+extern struct device_node *of_get_next_reserved_child(
+ const struct device_node *node, struct device_node *prev);
extern struct device_node *of_get_compatible_child(const struct device_node *parent,
const char *compatible);
@@ -541,6 +543,12 @@ static inline struct device_node *of_get_next_available_child(
return NULL;
}
+static inline struct device_node *of_get_next_reserved_child(
+ const struct device_node *node, struct device_node *prev)
+{
+ return NULL;
+}
+
static inline struct device_node *of_find_node_with_property(
struct device_node *from, const char *prop_name)
{
@@ -1431,6 +1439,9 @@ static inline int of_property_read_s32(const struct device_node *np,
#define for_each_available_child_of_node(parent, child) \
for (child = of_get_next_available_child(parent, NULL); child != NULL; \
child = of_get_next_available_child(parent, child))
+#define for_each_reserved_child_of_node(parent, child) \
+ for (child = of_get_next_reserved_child(parent, NULL); child != NULL; \
+ child = of_get_next_reserved_child(parent, child))
#define for_each_of_cpu_node(cpu) \
for (cpu = of_get_next_cpu_node(NULL); cpu != NULL; \