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-rw-r--r--include/syscon.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/syscon.h b/include/syscon.h
index c62ccd61b3..4593b6e3eb 100644
--- a/include/syscon.h
+++ b/include/syscon.h
@@ -37,6 +37,20 @@ struct regmap *syscon_get_regmap(struct udevice *dev);
*
* Each system controller can be accessed by its driver data, which is
* assumed to be unique through the scope of all system controllers that
+ * are in use. This function looks up the controller given this driver data.
+ *
+ * @driver_data: Driver data value to look up
+ * @devp: Returns the controller correponding to @driver_data
+ * @return 0 on success, -ENODEV if the ID was not found, or other -ve error
+ * code
+ */
+int syscon_get_by_driver_data(ulong driver_data, struct udevice **devp);
+
+/**
+ * syscon_get_regmap_by_driver_data() - Look up a controller by its ID
+ *
+ * Each system controller can be accessed by its driver data, which is
+ * assumed to be unique through the scope of all system controllers that
* are in use. This function looks up the regmap given this driver data.
*
* @driver_data: Driver data value to look up