parisc: sba_iommu: Convert SBA IOMMU driver to use arch_initcall()

Signed-off-by: Helge Deller <[e-mail]>

arch/parisc/include/asm/processor.h

···
 /* driver code in driver/parisc */
 extern void processor_init(void);
 extern void iosapic_init(void);
-extern void sba_init(void);
 struct parisc_device;
 struct resource;
 extern void sba_distributed_lmmio(struct parisc_device *, struct resource *);

arch/parisc/kernel/setup.c

···
 #if defined(CONFIG_IOSAPIC)
 	iosapic_init();
 #endif
-#if defined(CONFIG_IOMMU_SBA)
-	sba_init();
-#endif
 	return 0;
 }
 arch_initcall(parisc_init);

drivers/parisc/sba_iommu.c

···
 ** This is the only routine which is NOT static.
 ** Must be called exactly once before pci_init().
 */
-void __init sba_init(void)
+static int __init sba_init(void)
 {
-	register_parisc_driver(&sba_driver);
+	return register_parisc_driver(&sba_driver);
 }
+arch_initcall(sba_init);
 
 
 /**