parisc: gsc: Convert GSC bus driver to use arch_initcall()

This conversion includes LASI, ASP and WAX drivers for now.
Signed-off-by: Helge Deller <deller@gmx.de>

arch/parisc/include/asm/processor.h

@@ -313,7 +313,6 @@ extern void collect_boot_cpu_data(void);
 extern int show_cpuinfo (struct seq_file *m, void *v);
 
 /* driver code in driver/parisc */
-extern void gsc_init(void);
 extern void processor_init(void);
 extern void iosapic_init(void);
 extern void lba_init(void);

arch/parisc/kernel/setup.c

@@ -290,10 +290,6 @@ static int __init parisc_init(void)
 	lba_init();
 #endif
 
-#if defined(CONFIG_GSC_LASI) || defined(CONFIG_GSC_WAX)
-	gsc_init();
-#endif
-
 #ifdef CONFIG_CHASSIS_LCD_LED
 	register_led_regions();	/* register LED port info in procfs */
 #endif

drivers/parisc/gsc.c

@@ -263,7 +263,7 @@ extern struct parisc_driver lasi_driver;
 extern struct parisc_driver asp_driver;
 extern struct parisc_driver wax_driver;
 
-void __init gsc_init(void)
+static int __init gsc_init(void)
 {
 #ifdef CONFIG_GSC_LASI
 	register_parisc_driver(&lasi_driver);
@@ -272,4 +272,6 @@ void __init gsc_init(void)
 #ifdef CONFIG_GSC_WAX
 	register_parisc_driver(&wax_driver);
 #endif
+	return 0;
 }
+arch_initcall(gsc_init);