1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index c425290b21e2..b8dae34eca10 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -846,4 +846,28 @@ struct auxiliary_device_id {
 	kernel_ulong_t driver_data;
 };
 
+/*
+ * DFL (Device Feature List)
+ *
+ * DFL defines a linked list of feature headers within the device MMIO space to
+ * provide an extensible way of adding features. Software can walk through these
+ * predefined data structures to enumerate features. It is now used in the FPGA.
+ * See Documentation/fpga/dfl.rst for more information.
+ *
+ * The dfl bus type is introduced to match the individual feature devices (dfl
+ * devices) for specific dfl drivers.
+ */
+
+/**
+ * struct dfl_device_id -  dfl device identifier
+ * @type: DFL FIU type of the device. See enum dfl_id_type.
+ * @feature_id: feature identifier local to its DFL FIU type.
+ * @driver_data: driver specific data.
+ */
+struct dfl_device_id {
+	__u16 type;
+	__u16 feature_id;
+	kernel_ulong_t driver_data;
+};
+
 #endif /* LINUX_MOD_DEVICETABLE_H */