Allow disabling CPU nodes using status = "disabled".
This allows a bootloader to change the number of available CPUs (for
example when a common DTS is used for SoC variants with different numbers
of cores) without deleting the nodes altogether (which may require
additional fixups where the CPU nodes are referenced, e.g. a cooling
map).
Signed-off-by: Matthias Schiffer <matthias.schiffer@xxxxxxxxxxxxxxx>
---
drivers/of/base.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/of/base.c b/drivers/of/base.c
index ea44fea99813..d547e9deced1 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -796,6 +796,8 @@ struct device_node *of_get_next_cpu_node(struct device_node *prev)
of_node_put(node);
}
for (; next; next = next->sibling) {
+ if (!__of_device_is_available(next))
+ continue;
if (!(of_node_name_eq(next, "cpu") ||
__of_node_is_type(next, "cpu")))
continue;
--
2.17.1
