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of: Add for_each_reserved_child_of_node()

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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>
This commit is contained in:
Kuninori Morimoto
2024-01-10 01:14:50 +00:00
committed by Geert Uytterhoeven
parent 8918283af1
commit 28c5d4e407
2 changed files with 40 additions and 0 deletions
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include/linux/of.h
+11
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@@ -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; \