diff options
Diffstat (limited to 'drivers/fpga/fpga-bridge.c')
| -rw-r--r-- | drivers/fpga/fpga-bridge.c | 58 |
1 files changed, 27 insertions, 31 deletions
diff --git a/drivers/fpga/fpga-bridge.c b/drivers/fpga/fpga-bridge.c index 4bab9028940a..798f55670646 100644 --- a/drivers/fpga/fpga-bridge.c +++ b/drivers/fpga/fpga-bridge.c @@ -17,7 +17,7 @@ static DEFINE_IDA(fpga_bridge_ida); static struct class *fpga_bridge_class; /* Lock for adding/removing bridges to linked lists*/ -static spinlock_t bridge_list_lock; +static DEFINE_SPINLOCK(bridge_list_lock); /** * fpga_bridge_enable - Enable transactions on the bridge @@ -85,14 +85,14 @@ err_dev: } /** - * of_fpga_bridge_get - get an exclusive reference to a fpga bridge + * of_fpga_bridge_get - get an exclusive reference to an fpga bridge * - * @np: node pointer of a FPGA bridge + * @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 a FPGA Bridge. + * Return -ENODEV if @np is not an FPGA Bridge. */ struct fpga_bridge *of_fpga_bridge_get(struct device_node *np, struct fpga_image_info *info) @@ -113,11 +113,11 @@ static int fpga_bridge_dev_match(struct device *dev, const void *data) } /** - * fpga_bridge_get - get an exclusive reference to a fpga bridge + * fpga_bridge_get - get an exclusive reference to an fpga bridge * @dev: parent device that fpga bridge was registered with * @info: fpga manager info * - * Given a device, get an exclusive reference to a fpga bridge. + * Given a device, get an exclusive reference to an fpga bridge. * * Return: fpga bridge struct or IS_ERR() condition containing error code. */ @@ -224,13 +224,13 @@ EXPORT_SYMBOL_GPL(fpga_bridges_put); /** * of_fpga_bridge_get_to_list - get a bridge, add it to a list * - * @np: node pointer of a FPGA bridge + * @np: node pointer of an FPGA bridge * @info: fpga image specific information * @bridge_list: list of FPGA bridges * - * Get an exclusive reference to the bridge and and it to the list. + * Get an exclusive reference to the bridge and it to the list. * - * Return 0 for success, error code from of_fpga_bridge_get() othewise. + * 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, @@ -258,9 +258,9 @@ EXPORT_SYMBOL_GPL(of_fpga_bridge_get_to_list); * @info: fpga image specific information * @bridge_list: list of FPGA bridges * - * Get an exclusive reference to the bridge and and it to the list. + * Get an exclusive reference to the bridge and it to the list. * - * Return 0 for success, error code from fpga_bridge_get() othewise. + * 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, @@ -313,7 +313,7 @@ ATTRIBUTE_GROUPS(fpga_bridge); /** * fpga_bridge_create - create and initialize a struct fpga_bridge - * @dev: FPGA bridge device from pdev + * @parent: FPGA bridge device from pdev * @name: FPGA bridge name * @br_ops: pointer to structure of fpga bridge ops * @priv: FPGA bridge private data @@ -323,15 +323,15 @@ ATTRIBUTE_GROUPS(fpga_bridge); * * Return: struct fpga_bridge or NULL */ -struct fpga_bridge *fpga_bridge_create(struct device *dev, const char *name, +struct fpga_bridge *fpga_bridge_create(struct device *parent, const char *name, const struct fpga_bridge_ops *br_ops, void *priv) { struct fpga_bridge *bridge; - int id, ret = 0; + int id, ret; if (!name || !strlen(name)) { - dev_err(dev, "Attempt to register with no name!\n"); + dev_err(parent, "Attempt to register with no name!\n"); return NULL; } @@ -340,10 +340,8 @@ struct fpga_bridge *fpga_bridge_create(struct device *dev, const char *name, return NULL; id = ida_simple_get(&fpga_bridge_ida, 0, 0, GFP_KERNEL); - if (id < 0) { - ret = id; + if (id < 0) goto error_kfree; - } mutex_init(&bridge->mutex); INIT_LIST_HEAD(&bridge->node); @@ -355,8 +353,8 @@ struct fpga_bridge *fpga_bridge_create(struct device *dev, const char *name, device_initialize(&bridge->dev); bridge->dev.groups = br_ops->groups; bridge->dev.class = fpga_bridge_class; - bridge->dev.parent = dev; - bridge->dev.of_node = dev->of_node; + bridge->dev.parent = parent; + bridge->dev.of_node = parent->of_node; bridge->dev.id = id; ret = dev_set_name(&bridge->dev, "br%d", id); @@ -375,7 +373,7 @@ error_kfree: EXPORT_SYMBOL_GPL(fpga_bridge_create); /** - * fpga_bridge_free - free a fpga bridge created by fpga_bridge_create() + * fpga_bridge_free - free an fpga bridge created by fpga_bridge_create() * @bridge: FPGA bridge struct */ void fpga_bridge_free(struct fpga_bridge *bridge) @@ -394,12 +392,12 @@ static void devm_fpga_bridge_release(struct device *dev, void *res) /** * devm_fpga_bridge_create - create and init a managed struct fpga_bridge - * @dev: FPGA bridge device from pdev + * @parent: FPGA bridge device from pdev * @name: FPGA bridge name * @br_ops: pointer to structure of fpga bridge ops * @priv: FPGA bridge private data * - * This function is intended for use in a FPGA bridge driver's probe function. + * This function is intended for use in an FPGA bridge driver's probe function. * After the bridge driver creates the struct with devm_fpga_bridge_create(), it * should register the bridge with fpga_bridge_register(). The bridge driver's * remove function should call fpga_bridge_unregister(). The bridge struct @@ -410,7 +408,7 @@ static void devm_fpga_bridge_release(struct device *dev, void *res) * Return: struct fpga_bridge or NULL */ struct fpga_bridge -*devm_fpga_bridge_create(struct device *dev, const char *name, +*devm_fpga_bridge_create(struct device *parent, const char *name, const struct fpga_bridge_ops *br_ops, void *priv) { struct fpga_bridge **ptr, *bridge; @@ -419,12 +417,12 @@ struct fpga_bridge if (!ptr) return NULL; - bridge = fpga_bridge_create(dev, name, br_ops, priv); + bridge = fpga_bridge_create(parent, name, br_ops, priv); if (!bridge) { devres_free(ptr); } else { *ptr = bridge; - devres_add(dev, ptr); + devres_add(parent, ptr); } return bridge; @@ -432,7 +430,7 @@ struct fpga_bridge EXPORT_SYMBOL_GPL(devm_fpga_bridge_create); /** - * fpga_bridge_register - register a FPGA bridge + * fpga_bridge_register - register an FPGA bridge * * @bridge: FPGA bridge struct * @@ -456,11 +454,11 @@ int fpga_bridge_register(struct fpga_bridge *bridge) EXPORT_SYMBOL_GPL(fpga_bridge_register); /** - * fpga_bridge_unregister - unregister a FPGA bridge + * fpga_bridge_unregister - unregister an FPGA bridge * * @bridge: FPGA bridge struct * - * This function is intended for use in a FPGA bridge driver's remove function. + * This function is intended for use in an FPGA bridge driver's remove function. */ void fpga_bridge_unregister(struct fpga_bridge *bridge) { @@ -481,8 +479,6 @@ static void fpga_bridge_dev_release(struct device *dev) static int __init fpga_bridge_dev_init(void) { - spin_lock_init(&bridge_list_lock); - fpga_bridge_class = class_create(THIS_MODULE, "fpga_bridge"); if (IS_ERR(fpga_bridge_class)) return PTR_ERR(fpga_bridge_class); |