#include <linux/spinlock.h>
static DEFINE_IDA(fpga_bridge_ida);
-static struct class *fpga_bridge_class;
+static const struct class fpga_bridge_class;
/* Lock for adding/removing bridges to linked lists*/
static DEFINE_SPINLOCK(bridge_list_lock);
/**
* of_fpga_bridge_get - get an exclusive reference to an fpga bridge
*
- * @np: node pointer of an FPGA bridge
- * @info: fpga image specific information
+ * @np: node pointer of an FPGA bridge.
+ * @info: fpga image specific information.
*
- * Return fpga_bridge struct if successful.
- * Return -EBUSY if someone already has a reference to the bridge.
- * Return -ENODEV if @np is not an FPGA Bridge.
+ * Return:
+ * * fpga_bridge struct pointer if successful.
+ * * -EBUSY if someone already has a reference to the bridge.
+ * * -ENODEV if @np is not an FPGA Bridge or can't take parent driver refcount.
*/
struct fpga_bridge *of_fpga_bridge_get(struct device_node *np,
struct fpga_image_info *info)
{
struct device *dev;
- dev = class_find_device_by_of_node(fpga_bridge_class, np);
+ dev = class_find_device_by_of_node(&fpga_bridge_class, np);
if (!dev)
return ERR_PTR(-ENODEV);
{
struct device *bridge_dev;
- bridge_dev = class_find_device(fpga_bridge_class, NULL, dev,
+ bridge_dev = class_find_device(&fpga_bridge_class, NULL, dev,
fpga_bridge_dev_match);
if (!bridge_dev)
return ERR_PTR(-ENODEV);
* fpga_bridges_enable - enable bridges in a list
* @bridge_list: list of FPGA bridges
*
- * Enable each bridge in the list. If list is empty, do nothing.
+ * Enable each bridge in the list. If list is empty, do nothing.
*
- * Return 0 for success or empty bridge list; return error code otherwise.
+ * Return: 0 for success or empty bridge list or an error code otherwise.
*/
int fpga_bridges_enable(struct list_head *bridge_list)
{
*
* @bridge_list: list of FPGA bridges
*
- * Disable each bridge in the list. If list is empty, do nothing.
+ * Disable each bridge in the list. If list is empty, do nothing.
*
- * Return 0 for success or empty bridge list; return error code otherwise.
+ * Return: 0 for success or empty bridge list or an error code otherwise.
*/
int fpga_bridges_disable(struct list_head *bridge_list)
{
*
* Get an exclusive reference to the bridge and it to the list.
*
- * Return 0 for success, error code from of_fpga_bridge_get() otherwise.
+ * Return: 0 for success, error code from of_fpga_bridge_get() otherwise.
*/
int of_fpga_bridge_get_to_list(struct device_node *np,
struct fpga_image_info *info,
*
* Get an exclusive reference to the bridge and it to the list.
*
- * Return 0 for success, error code from fpga_bridge_get() otherwise.
+ * Return: 0 for success, error code from fpga_bridge_get() otherwise.
*/
int fpga_bridge_get_to_list(struct device *dev,
struct fpga_image_info *info,
bridge->priv = priv;
bridge->dev.groups = br_ops->groups;
- bridge->dev.class = fpga_bridge_class;
+ bridge->dev.class = &fpga_bridge_class;
bridge->dev.parent = parent;
bridge->dev.of_node = parent->of_node;
bridge->dev.id = id;
kfree(bridge);
}
+static const struct class fpga_bridge_class = {
+ .name = "fpga_bridge",
+ .dev_groups = fpga_bridge_groups,
+ .dev_release = fpga_bridge_dev_release,
+};
+
static int __init fpga_bridge_dev_init(void)
{
- fpga_bridge_class = class_create("fpga_bridge");
- if (IS_ERR(fpga_bridge_class))
- return PTR_ERR(fpga_bridge_class);
-
- fpga_bridge_class->dev_groups = fpga_bridge_groups;
- fpga_bridge_class->dev_release = fpga_bridge_dev_release;
-
- return 0;
+ return class_register(&fpga_bridge_class);
}
static void __exit fpga_bridge_dev_exit(void)
{
- class_destroy(fpga_bridge_class);
+ class_unregister(&fpga_bridge_class);
ida_destroy(&fpga_bridge_ida);
}