--- zzzz-none-000/linux-3.10.107/arch/m68k/mac/psc.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/m68k/mac/psc.c	2021-02-04 17:41:59.000000000 +0000
@@ -21,7 +21,6 @@
 #include <linux/irq.h>
 
 #include <asm/traps.h>
-#include <asm/bootinfo.h>
 #include <asm/macintosh.h>
 #include <asm/macints.h>
 #include <asm/mac_psc.h>
@@ -30,6 +29,7 @@
 
 int psc_present;
 volatile __u8 *psc;
+EXPORT_SYMBOL_GPL(psc);
 
 /*
  * Debugging dump, used in various places to see what's going on.
@@ -54,7 +54,7 @@
  * expanded to cover what I think are the other 7 channels.
  */
 
-static void psc_dma_die_die_die(void)
+static __init void psc_dma_die_die_die(void)
 {
 	int i;
 
@@ -114,9 +114,10 @@
  * PSC interrupt handler. It's a lot like the VIA interrupt handler.
  */
 
-static void psc_irq(unsigned int irq, struct irq_desc *desc)
+static void psc_irq(struct irq_desc *desc)
 {
 	unsigned int offset = (unsigned int)irq_desc_get_handler_data(desc);
+	unsigned int irq = irq_desc_get_irq(desc);
 	int pIFR	= pIFRbase + offset;
 	int pIER	= pIERbase + offset;
 	int irq_num;
@@ -149,14 +150,10 @@
 
 void __init psc_register_interrupts(void)
 {
-	irq_set_chained_handler(IRQ_AUTO_3, psc_irq);
-	irq_set_handler_data(IRQ_AUTO_3, (void *)0x30);
-	irq_set_chained_handler(IRQ_AUTO_4, psc_irq);
-	irq_set_handler_data(IRQ_AUTO_4, (void *)0x40);
-	irq_set_chained_handler(IRQ_AUTO_5, psc_irq);
-	irq_set_handler_data(IRQ_AUTO_5, (void *)0x50);
-	irq_set_chained_handler(IRQ_AUTO_6, psc_irq);
-	irq_set_handler_data(IRQ_AUTO_6, (void *)0x60);
+	irq_set_chained_handler_and_data(IRQ_AUTO_3, psc_irq, (void *)0x30);
+	irq_set_chained_handler_and_data(IRQ_AUTO_4, psc_irq, (void *)0x40);
+	irq_set_chained_handler_and_data(IRQ_AUTO_5, psc_irq, (void *)0x50);
+	irq_set_chained_handler_and_data(IRQ_AUTO_6, psc_irq, (void *)0x60);
 }
 
 void psc_irq_enable(int irq) {