fpga: region: add register/unregister functions

Another step in separating common code from device tree specific
code for FPGA regions.

* add FPGA region register/unregister functions.
* add the register/unregister functions to the header
* use devm_kzalloc to alloc the region.
* add a method for getting bridges to the region struct
* add priv to the region struct
* use region->info in of_fpga_region_get_bridges

Signed-off-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/fpga/fpga-region.h b/include/linux/fpga/fpga-region.h
index 8a355171406b..8c8a3249f96c 100644
--- a/include/linux/fpga/fpga-region.h
+++ b/include/linux/fpga/fpga-region.h
@@ -12,6 +12,8 @@
  * @bridge_list: list of FPGA bridges specified in region
  * @mgr: FPGA manager
  * @info: FPGA image info
+ * @priv: private data
+ * @get_bridges: optional function to get bridges to a list
  */
 struct fpga_region {
         struct device dev;
@@ -19,10 +21,15 @@ struct fpga_region {
         struct list_head bridge_list;
         struct fpga_manager *mgr;
         struct fpga_image_info *info;
+        void *priv;
+        int (*get_bridges)(struct fpga_region *region);
 };
 
 #define to_fpga_region(d) container_of(d, struct fpga_region, dev)
 
 int fpga_region_program_fpga(struct fpga_region *region);
 
+int fpga_region_register(struct device *dev, struct fpga_region *region);
+int fpga_region_unregister(struct fpga_region *region);
+
 #endif /* _FPGA_REGION_H */