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authorAlan Tull <atull@kernel.org>2017-11-15 14:20:13 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-28 16:30:37 +0100
commitebf877a51ad7b65e4ab024f021b60a4f7928864a (patch)
treecca7dfc760c45f32bdbd9e6f69106dd24651d468 /include/linux/fpga/fpga-mgr.h
parent5cf0c7f6502f26332b46fa87914553a4d6ae75ac (diff)
fpga: mgr: separate getting/locking FPGA manager
Previously when the user gets a FPGA manager, it was locked and nobody else could use it for programming. This commit makes it straightforward to save a reference to an FPGA manager and only lock it when programming the FPGA. Add functions that get an FPGA manager's mutex for exclusive use: * fpga_mgr_lock * fpga_mgr_unlock The following functions no longer lock an FPGA manager's mutex: * of_fpga_mgr_get * fpga_mgr_get * fpga_mgr_put Signed-off-by: Alan Tull <atull@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
-rw-r--r--include/linux/fpga/fpga-mgr.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h
index 6b791348023b..cb5615c87504 100644
--- a/include/linux/fpga/fpga-mgr.h
+++ b/include/linux/fpga/fpga-mgr.h
@@ -155,6 +155,9 @@ void fpga_image_info_free(struct fpga_image_info *info);
int fpga_mgr_load(struct fpga_manager *mgr, struct fpga_image_info *info);
+int fpga_mgr_lock(struct fpga_manager *mgr);
+void fpga_mgr_unlock(struct fpga_manager *mgr);
+
struct fpga_manager *of_fpga_mgr_get(struct device_node *node);
struct fpga_manager *fpga_mgr_get(struct device *dev);