dm: core: Allow parents to pass data to children during probe

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

diff --git a/drivers/core/device.c b/drivers/core/device.c
index 9538874017ac4865acc30177b6982b1e6e0f4fd1..49faa29dc1a0eecaa84e76371b8301c2eef14d7b 100644 (file)
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -232,7 +232,7 @@ static void device_free(struct udevice *dev)
        }
 }
 
-int device_probe(struct udevice *dev)
+int device_probe_child(struct udevice *dev, void *parent_priv)
 {
        struct driver *drv;
        int size = 0;
@@ -282,6 +282,8 @@ int device_probe(struct udevice *dev)
                                ret = -ENOMEM;
                                goto fail;
                        }
+                       if (parent_priv)
+                               memcpy(dev->parent_priv, parent_priv, size);
                }
 
                ret = device_probe(dev->parent);
@@ -335,6 +337,11 @@ fail:
        return ret;
 }
 
+int device_probe(struct udevice *dev)
+{
+       return device_probe_child(dev, NULL);
+}
+
 int device_remove(struct udevice *dev)
 {
        struct driver *drv;