Commit 8918283a authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Geert Uytterhoeven
Browse files

of: Add of_get_next_status_child() and makes more generic of_get_next 



Linux Kernel has of_get_next_available_child().
Add more generic of_get_next_status_child() to enable to use same
logic for other status.

Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: default avatarYusuke Goda <yusuke.goda.sx@renesas.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/87bk9ugfb0.wl-kuninori.morimoto.gx@renesas.com


Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent b5056ecf

drivers/of/base.c

+18 −11
Original line number Diff line number Diff line
@@ -612,16 +612,9 @@ struct device_node *of_get_next_child(const struct device_node *node, 
}

EXPORT_SYMBOL(of_get_next_child);



/**

 * of_get_next_available_child - Find the next available child node

 * @node:	parent node

 * @prev:	previous child of the parent node, or NULL to get first

 *

 * This function is like of_get_next_child(), except that it

 * automatically skips any disabled nodes (i.e. status = "disabled").

 */

struct device_node *of_get_next_available_child(const struct device_node *node,

	struct device_node *prev)

static struct device_node *of_get_next_status_child(const struct device_node *node,

						    struct device_node *prev,

						    bool (*checker)(const struct device_node *))

{

	struct device_node *next;

	unsigned long flags;
@@ -632,7 +625,7 @@ struct device_node *of_get_next_available_child(const struct device_node *node, 
	raw_spin_lock_irqsave(&devtree_lock, flags);

	next = prev ? prev->sibling : node->child;

	for (; next; next = next->sibling) {

		if (!__of_device_is_available(next))

		if (!checker(next))

			continue;

		if (of_node_get(next))

			break;
@@ -641,6 +634,20 @@ struct device_node *of_get_next_available_child(const struct device_node *node, 
	raw_spin_unlock_irqrestore(&devtree_lock, flags);

	return next;

}



/**

 * of_get_next_available_child - Find the next available child node

 * @node:	parent node

 * @prev:	previous child of the parent node, or NULL to get first

 *

 * This function is like of_get_next_child(), except that it

 * automatically skips any disabled nodes (i.e. status = "disabled").

 */

struct device_node *of_get_next_available_child(const struct device_node *node,

	struct device_node *prev)

{

	return of_get_next_status_child(node, prev, __of_device_is_available);

}

EXPORT_SYMBOL(of_get_next_available_child);



/**