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authorJiri Kosina <jkosina@suse.cz>2021-04-29 21:45:19 +0200
committerJiri Kosina <jkosina@suse.cz>2021-04-29 21:45:19 +0200
commite50fedec822efc7b7090f95862b782d91ca8aec0 (patch)
tree22dd6b534d00a1f7fc3823f0d88e0d43547fc87b /include/linux/mod_devicetable.h
parentcfc9bdfb6ba76de84a9ed8ee75dc56903b505a78 (diff)
parent35a927f2848bd79586c6374ebb99e4207f3b0c7f (diff)
Merge branch 'for-5.13/surface-system-aggregator-intergration' into for-linus
- Surface Aggregator Module support from Maximilian Luz
Diffstat (limited to 'include/linux/mod_devicetable.h')
-rw-r--r--include/linux/mod_devicetable.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 935060955152..7d45b5f989b0 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -864,4 +864,28 @@ struct ssam_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 */