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Merge branch 'dt/cpu-type-rework' into dt/next

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This commit is contained in:
Rob Herring
2018-09-28 15:48:39 -05:00
parent da08d8cb8c 4c29e5934f
commit 389d0a8a7a
23 changed files with 111 additions and 120 deletions
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43
drivers/of/base.c
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@@ -330,6 +330,8 @@ static bool __of_find_n_match_cpu_property(struct device_node *cpun,
ac = of_n_addr_cells(cpun);
cell = of_get_property(cpun, prop_name, &prop_len);
if (!cell && !ac && arch_match_cpu_phys_id(cpu, 0))
return true;
if (!cell || !ac)
return false;
prop_len /= sizeof(*cell) * ac;
@@ -390,7 +392,7 @@ struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
{
struct device_node *cpun;
for_each_node_by_type(cpun, "cpu") {
for_each_of_cpu_node(cpun) {
if (arch_find_n_match_cpu_physical_id(cpun, cpu, thread))
return cpun;
}
@@ -744,6 +746,45 @@ struct device_node *of_get_next_available_child(const struct device_node *node,
}
EXPORT_SYMBOL(of_get_next_available_child);
/**
* of_get_next_cpu_node - Iterate on cpu nodes
* @prev: previous child of the /cpus node, or NULL to get first
*
* Returns a cpu node pointer with refcount incremented, use of_node_put()
* on it when done. Returns NULL when prev is the last child. Decrements
* the refcount of prev.
*/
struct device_node *of_get_next_cpu_node(struct device_node *prev)
{
struct device_node *next = NULL;
unsigned long flags;
struct device_node *node;
if (!prev)
node = of_find_node_by_path("/cpus");
raw_spin_lock_irqsave(&devtree_lock, flags);
if (prev)
next = prev->sibling;
else if (node) {
next = node->child;
of_node_put(node);
}
for (; next; next = next->sibling) {
if (!(of_node_name_eq(next, "cpu") ||
(next->type && !of_node_cmp(next->type, "cpu"))))
continue;
if (!__of_device_is_available(next))
continue;
if (of_node_get(next))
break;
}
of_node_put(prev);
raw_spin_unlock_irqrestore(&devtree_lock, flags);
return next;
}
EXPORT_SYMBOL(of_get_next_cpu_node);
/**
* of_get_compatible_child - Find compatible child node
* @parent: parent node