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fpga: region: add register/unregister functions

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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>
This commit is contained in:
Alan Tull 2017-11-15 14:20:23 -06:00 • committed by Greg Kroah-Hartman
parent 3b49537f80
commit 52a3a7ccce
2 changed files with 72 additions and 40 deletions
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7
include/linux/fpga/fpga-region.h
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@ -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 */