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authorChristopher Bostic <cbostic@linux.vnet.ibm.com>2017-06-06 16:08:48 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-09 11:52:08 +0200
commit356d8009a5a4569f17a3508b50a347bdf4d5b337 (patch)
tree7c48df9d9b3c5aa590af8ce4827cf1640cacc3ea
parent777dcf7391be81644360c15c375b24c96ceb49ce (diff)
drivers/fsi: Add client driver register utilities
Add driver_register and driver_unregister wrappers for FSI. Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/fsi/fsi-core.c17
-rw-r--r--include/linux/fsi.h12
2 files changed, 29 insertions, 0 deletions
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index fcb0c818524f..e9fbd9feeb3e 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -586,6 +586,23 @@ static int fsi_bus_match(struct device *dev, struct device_driver *drv)
return 0;
}
+int fsi_driver_register(struct fsi_driver *fsi_drv)
+{
+ if (!fsi_drv)
+ return -EINVAL;
+ if (!fsi_drv->id_table)
+ return -EINVAL;
+
+ return driver_register(&fsi_drv->drv);
+}
+EXPORT_SYMBOL_GPL(fsi_driver_register);
+
+void fsi_driver_unregister(struct fsi_driver *fsi_drv)
+{
+ driver_unregister(&fsi_drv->drv);
+}
+EXPORT_SYMBOL_GPL(fsi_driver_unregister);
+
struct bus_type fsi_bus_type = {
.name = "fsi",
.match = fsi_bus_match,
diff --git a/include/linux/fsi.h b/include/linux/fsi.h
index 66bce4851ff6..34f1e9aea725 100644
--- a/include/linux/fsi.h
+++ b/include/linux/fsi.h
@@ -54,6 +54,18 @@ struct fsi_driver {
#define to_fsi_dev(devp) container_of(devp, struct fsi_device, dev)
#define to_fsi_drv(drvp) container_of(drvp, struct fsi_driver, drv)
+extern int fsi_driver_register(struct fsi_driver *fsi_drv);
+extern void fsi_driver_unregister(struct fsi_driver *fsi_drv);
+
+/* module_fsi_driver() - Helper macro for drivers that don't do
+ * anything special in module init/exit. This eliminates a lot of
+ * boilerplate. Each module may only use this macro once, and
+ * calling it replaces module_init() and module_exit()
+ */
+#define module_fsi_driver(__fsi_driver) \
+ module_driver(__fsi_driver, fsi_driver_register, \
+ fsi_driver_unregister)
+
extern struct bus_type fsi_bus_type;
#endif /* LINUX_FSI_H */

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