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authorGrant Likely <grant.likely@secretlab.ca>2009-11-23 22:16:45 -0500
committerGrant Likely <grant.likely@secretlab.ca>2009-11-23 22:16:45 -0500
commit02af11b03fce3ddb264d7873d7a2e295e697938c (patch)
tree5118d53f2c28d128d23fbf1b2d79d9ec15e5b6ab /arch/microblaze/kernel
parent41f880091c15b039ffcc8b3d831656b81517a6d3 (diff)
of: merge prom_{add,remove,modify}_property
Merge common code between PowerPC and MicroBlaze Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Tested-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/kernel')
-rw-r--r--arch/microblaze/kernel/prom.c113
1 files changed, 0 insertions, 113 deletions
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 901d538c15ef..a38e3733a09c 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -606,119 +606,6 @@ out_unlock:
606 write_unlock_irqrestore(&devtree_lock, flags); 606 write_unlock_irqrestore(&devtree_lock, flags);
607} 607}
608 608
609/*
610 * Add a property to a node
611 */
612int prom_add_property(struct device_node *np, struct property *prop)
613{
614 struct property **next;
615 unsigned long flags;
616
617 prop->next = NULL;
618 write_lock_irqsave(&devtree_lock, flags);
619 next = &np->properties;
620 while (*next) {
621 if (strcmp(prop->name, (*next)->name) == 0) {
622 /* duplicate ! don't insert it */
623 write_unlock_irqrestore(&devtree_lock, flags);
624 return -1;
625 }
626 next = &(*next)->next;
627 }
628 *next = prop;
629 write_unlock_irqrestore(&devtree_lock, flags);
630
631#ifdef CONFIG_PROC_DEVICETREE
632 /* try to add to proc as well if it was initialized */
633 if (np->pde)
634 proc_device_tree_add_prop(np->pde, prop);
635#endif /* CONFIG_PROC_DEVICETREE */
636
637 return 0;
638}
639
640/*
641 * Remove a property from a node. Note that we don't actually
642 * remove it, since we have given out who-knows-how-many pointers
643 * to the data using get-property. Instead we just move the property
644 * to the "dead properties" list, so it won't be found any more.
645 */
646int prom_remove_property(struct device_node *np, struct property *prop)
647{
648 struct property **next;
649 unsigned long flags;
650 int found = 0;
651
652 write_lock_irqsave(&devtree_lock, flags);
653 next = &np->properties;
654 while (*next) {
655 if (*next == prop) {
656 /* found the node */
657 *next = prop->next;
658 prop->next = np->deadprops;
659 np->deadprops = prop;
660 found = 1;
661 break;
662 }
663 next = &(*next)->next;
664 }
665 write_unlock_irqrestore(&devtree_lock, flags);
666
667 if (!found)
668 return -ENODEV;
669
670#ifdef CONFIG_PROC_DEVICETREE
671 /* try to remove the proc node as well */
672 if (np->pde)
673 proc_device_tree_remove_prop(np->pde, prop);
674#endif /* CONFIG_PROC_DEVICETREE */
675
676 return 0;
677}
678
679/*
680 * Update a property in a node. Note that we don't actually
681 * remove it, since we have given out who-knows-how-many pointers
682 * to the data using get-property. Instead we just move the property
683 * to the "dead properties" list, and add the new property to the
684 * property list
685 */
686int prom_update_property(struct device_node *np,
687 struct property *newprop,
688 struct property *oldprop)
689{
690 struct property **next;
691 unsigned long flags;
692 int found = 0;
693
694 write_lock_irqsave(&devtree_lock, flags);
695 next = &np->properties;
696 while (*next) {
697 if (*next == oldprop) {
698 /* found the node */
699 newprop->next = oldprop->next;
700 *next = newprop;
701 oldprop->next = np->deadprops;
702 np->deadprops = oldprop;
703 found = 1;
704 break;
705 }
706 next = &(*next)->next;
707 }
708 write_unlock_irqrestore(&devtree_lock, flags);
709
710 if (!found)
711 return -ENODEV;
712
713#ifdef CONFIG_PROC_DEVICETREE
714 /* try to add to proc as well if it was initialized */
715 if (np->pde)
716 proc_device_tree_update_prop(np->pde, newprop, oldprop);
717#endif /* CONFIG_PROC_DEVICETREE */
718
719 return 0;
720}
721
722#if defined(CONFIG_DEBUG_FS) && defined(DEBUG) 609#if defined(CONFIG_DEBUG_FS) && defined(DEBUG)
723static struct debugfs_blob_wrapper flat_dt_blob; 610static struct debugfs_blob_wrapper flat_dt_blob;
724 611