fpga: add attribute groups

Make it easy to add attributes to low level FPGA drivers the right
way.  Add attribute groups pointers to structures that are used when
registering a manager, bridge, or group.  When the low level driver
registers, set the device attribute group.  The attributes are
created in device_add.

Signed-off-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/fpga/fpga-region.c b/drivers/fpga/fpga-region.c
index afc61885a601..edab2a2e03ef 100644
--- a/drivers/fpga/fpga-region.c
+++ b/drivers/fpga/fpga-region.c
@@ -173,6 +173,7 @@ int fpga_region_register(struct device *dev, struct fpga_region *region)
         mutex_init(&region->mutex);
         INIT_LIST_HEAD(&region->bridge_list);
         device_initialize(&region->dev);
+        region->dev.groups = region->groups;
         region->dev.class = fpga_region_class;
         region->dev.parent = dev;
         region->dev.of_node = dev->of_node;