core: add uclass_get_device_by_phandle_id() api
Add api for who can not get phandle from a device property.
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
diff --git a/drivers/core/uclass.c b/drivers/core/uclass.c
index 1aedaa0..628e2e1 100644
--- a/drivers/core/uclass.c
+++ b/drivers/core/uclass.c
@@ -457,6 +457,32 @@
}
#if CONFIG_IS_ENABLED(OF_CONTROL)
+int uclass_get_device_by_phandle_id(enum uclass_id id, uint phandle_id,
+ struct udevice **devp)
+{
+ struct udevice *dev;
+ struct uclass *uc;
+ int ret;
+
+ *devp = NULL;
+ ret = uclass_get(id, &uc);
+ if (ret)
+ return ret;
+
+ list_for_each_entry(dev, &uc->dev_head, uclass_node) {
+ uint phandle;
+
+ phandle = dev_read_phandle(dev);
+
+ if (phandle == phandle_id) {
+ *devp = dev;
+ return uclass_get_device_tail(dev, ret, devp);
+ }
+ }
+
+ return -ENODEV;
+}
+
int uclass_get_device_by_phandle(enum uclass_id id, struct udevice *parent,
const char *name, struct udevice **devp)
{