dm: Avoid activating devices in 'dm uclass' command
This command currently activates devices as it lists them. This is not
desirable since it changes the system state. Fix it and avoid printing
a newline if there are no devices in a uclass.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/cmd_dm.c b/test/dm/cmd_dm.c
index 9b77a7f..93e5255 100644
--- a/test/dm/cmd_dm.c
+++ b/test/dm/cmd_dm.c
@@ -94,9 +94,9 @@
continue;
printf("uclass %d: %s\n", id, uc->uc_drv->name);
- for (ret = uclass_first_device(id, &dev);
- dev;
- ret = uclass_next_device(&dev)) {
+ if (list_empty(&uc->dev_head))
+ continue;
+ list_for_each_entry(dev, &uc->dev_head, uclass_node) {
dm_display_line(dev, "");
}
puts("\n");