From ebf877a51ad7b65e4ab024f021b60a4f7928864a Mon Sep 17 00:00:00 2001 From: Alan Tull Date: Wed, 15 Nov 2017 14:20:13 -0600 Subject: 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 Acked-by: Moritz Fischer Signed-off-by: Greg Kroah-Hartman --- include/linux/fpga/fpga-mgr.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/fpga') 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); -- cgit