of: make PowerMac cache node search conditional on CONFIG_PPC_PMAC

Cache nodes under the cpu node(s) is PowerMac specific according to the
comment above, so make the code enforce that.

Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 9095b82..a055cd1 100644 (file)
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -2010,7 +2010,7 @@ struct device_node *of_find_next_cache_node(const struct device_node *np)
        /* OF on pmac has nodes instead of properties named "l2-cache"
         * beneath CPU nodes.
         */
-       if (!strcmp(np->type, "cpu"))
+       if (IS_ENABLED(CONFIG_PPC_PMAC) && !strcmp(np->type, "cpu"))
                for_each_child_of_node(np, child)
                        if (!strcmp(child->type, "cache"))
                                return child;