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-rw-r--r--drivers/of/platform.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 07813fb1ef37..b3faf89744aa 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -76,6 +76,7 @@ static void of_device_make_bus_id(struct device *dev)
struct device_node *node = dev->of_node;
const __be32 *reg;
u64 addr;
+ u32 mask;
/* Construct the name, using parent nodes if necessary to ensure uniqueness */
while (node->parent) {
@@ -85,8 +86,13 @@ static void of_device_make_bus_id(struct device *dev)
*/
reg = of_get_property(node, "reg", NULL);
if (reg && (addr = of_translate_address(node, reg)) != OF_BAD_ADDR) {
- dev_set_name(dev, dev_name(dev) ? "%llx.%pOFn:%s" : "%llx.%pOFn",
- addr, node, dev_name(dev));
+ if (!of_property_read_u32(node, "mask", &mask))
+ dev_set_name(dev, dev_name(dev) ? "%llx.%x.%pOFn:%s" : "%llx.%x.%pOFn",
+ addr, ffs(mask) - 1, node, dev_name(dev));
+
+ else
+ dev_set_name(dev, dev_name(dev) ? "%llx.%pOFn:%s" : "%llx.%pOFn",
+ addr, node, dev_name(dev));
return;
}