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fpga: region: change api, add fpga_region_create/free

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Add fpga_region_create/free API functions.

Change fpga_region_register to take FPGA region struct as the only
parameter.  Change fpga_region_unregister to return void.

  struct fpga_region *fpga_region_create(struct device *dev,
                        struct fpga_manager *mgr,
                        int (*get_bridges)(struct fpga_region *));
  void fpga_region_free(struct fpga_region *region);
  int fpga_region_register(struct fpga_region *region);
  void fpga_region_unregister(struct fpga_region *region);

Remove groups storage from struct fpga_region, it's not
needed.  Callers can just "region->dev.groups = groups;"
after calling fpga_region_create.

Update the drivers that call fpga_region_register with the new API.

Signed-off-by: Alan Tull <atull@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alan Tull 2018-05-16 18:49:57 -05:00 • committed by Greg Kroah-Hartman
parent 371cd1b1fd
commit 9f368977b4
4 changed files with 68 additions and 27 deletions
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3
Documentation/fpga/fpga-region.txt
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@ -42,8 +42,7 @@ The FPGA region API
To register or unregister a region:
-----------------------------------
int fpga_region_register(struct device *dev,
struct fpga_region *region);
int fpga_region_register(struct fpga_region *region);
int fpga_region_unregister(struct fpga_region *region);
An example of usage can be seen in the probe function of [3]