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fpga: add method to get fpga manager from device

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The intent is to provide a non-DT method of getting
ahold of a FPGA manager to do some FPGA programming.

This patch refactors of_fpga_mgr_get() to reuse most of it
while adding a new method fpga_mgr_get() for getting a
pointer to a fpga manager struct, given the device.

Signed-off-by: Alan Tull <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Alan Tull 2016-11-01 14:14:23 -05:00 • committed by Greg Kroah-Hartman
commit 9dce0287a6
3 changed files with 60 additions and 24 deletions
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6
Documentation/fpga/fpga-mgr.txt
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@ -38,11 +38,13 @@ To get/put a reference to a FPGA manager:
-----------------------------------------
struct fpga_manager *of_fpga_mgr_get(struct device_node *node);
struct fpga_manager *fpga_mgr_get(struct device *dev);
Given a DT node or device, get an exclusive reference to a FPGA manager.
void fpga_mgr_put(struct fpga_manager *mgr);
Given a DT node, get an exclusive reference to a FPGA manager or release
the reference.
Release the reference.
To register or unregister the low level FPGA-specific driver: