dm: core: add internal functions for getting the device without probe

[karo-tx-uboot.git] / drivers / core / uclass.c

diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c
index 98c15e585dfa81d36313899ffacdcaee9ea57ca6..21ab0d52452f09fefaa9b6c1a6845ca9037601e0 100644 (file)
--- a/drivers/core/uclass.c
+++ b/drivers/core/uclass.c
@@ -156,6 +156,36 @@ int uclass_find_device(enum uclass_id id, int index, struct udevice **devp)
        return -ENODEV;
 }
 
+int uclass_find_first_device(enum uclass_id id, struct udevice **devp)
+{
+       struct uclass *uc;
+       int ret;
+
+       *devp = NULL;
+       ret = uclass_get(id, &uc);
+       if (ret)
+               return ret;
+       if (list_empty(&uc->dev_head))
+               return 0;
+
+       *devp = list_first_entry(&uc->dev_head, struct udevice, uclass_node);
+
+       return 0;
+}
+
+int uclass_find_next_device(struct udevice **devp)
+{
+       struct udevice *dev = *devp;
+
+       *devp = NULL;
+       if (list_is_last(&dev->uclass_node, &dev->uclass->dev_head))
+               return 0;
+
+       *devp = list_entry(dev->uclass_node.next, struct udevice, uclass_node);
+
+       return 0;
+}
+
 int uclass_find_device_by_seq(enum uclass_id id, int seq_or_req_seq,
                              bool find_req_seq, struct udevice **devp)
 {
@@ -274,24 +304,12 @@ int uclass_get_device_by_of_offset(enum uclass_id id, int node,
 
 int uclass_first_device(enum uclass_id id, struct udevice **devp)
 {
-       struct uclass *uc;
        struct udevice *dev;
        int ret;
 
        *devp = NULL;
-       ret = uclass_get(id, &uc);
-       if (ret)
-               return ret;
-       if (list_empty(&uc->dev_head))
-               return 0;
-
-       dev = list_first_entry(&uc->dev_head, struct udevice, uclass_node);
-       ret = device_probe(dev);
-       if (ret)
-               return ret;
-       *devp = dev;
-
-       return 0;
+       ret = uclass_find_first_device(id, &dev);
+       return uclass_get_device_tail(dev, ret, devp);
 }
 
 int uclass_next_device(struct udevice **devp)
@@ -300,17 +318,8 @@ int uclass_next_device(struct udevice **devp)
        int ret;
 
        *devp = NULL;
-       if (list_is_last(&dev->uclass_node, &dev->uclass->dev_head))
-               return 0;
-
-       dev = list_entry(dev->uclass_node.next, struct udevice,
-                        uclass_node);
-       ret = device_probe(dev);
-       if (ret)
-               return ret;
-       *devp = dev;
-
-       return 0;
+       ret = uclass_find_next_device(&dev);
+       return uclass_get_device_tail(dev, ret, devp);
 }
 
 int uclass_bind_device(struct udevice *dev)