dm: core: Add a way to iterate through children, probing each

[platform/kernel/u-boot.git] / drivers / core / device.c

diff --git a/drivers/core/device.c b/drivers/core/device.c
index c948d8d..89ea820 100644 (file)
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -792,6 +792,28 @@ int device_find_child_by_name(const struct udevice *parent, const char *name,
        return -ENODEV;
 }
 
+int device_first_child_err(struct udevice *parent, struct udevice **devp)
+{
+       struct udevice *dev;
+
+       device_find_first_child(parent, &dev);
+       if (!dev)
+               return -ENODEV;
+
+       return device_get_device_tail(dev, 0, devp);
+}
+
+int device_next_child_err(struct udevice **devp)
+{
+       struct udevice *dev = *devp;
+
+       device_find_next_child(&dev);
+       if (!dev)
+               return -ENODEV;
+
+       return device_get_device_tail(dev, 0, devp);
+}
+
 int device_first_child_ofdata_err(struct udevice *parent, struct udevice **devp)
 {
        struct udevice *dev;