Merge branch 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied...

[linux-drm-fsl-dcu.git] / arch / m68k / mac / psc.c

diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c
index 15378a5878c94925f1cf88cb2556b58ee150ad14..d66f723b17c3402567d8c54e28d12a9026c8946f 100644 (file)
--- a/arch/m68k/mac/psc.c
+++ b/arch/m68k/mac/psc.c
@@ -131,11 +131,8 @@ irqreturn_t psc_irq(int irq, void *dev_id)
 {
        int pIFR        = pIFRbase + ((int) dev_id);
        int pIER        = pIERbase + ((int) dev_id);
-       int base_irq;
-       int irq_bit,i;
-       unsigned char events;
-
-       base_irq = irq << 3;
+       int irq_num;
+       unsigned char irq_bit, events;
 
 #ifdef DEBUG_IRQS
        printk("psc_irq: irq %d pIFR = 0x%02X pIER = 0x%02X\n",
@@ -146,14 +143,16 @@ irqreturn_t psc_irq(int irq, void *dev_id)
        if (!events)
                return IRQ_NONE;
 
-       for (i = 0, irq_bit = 1 ; i < 4 ; i++, irq_bit <<= 1) {
-               if (events & irq_bit) {
-                       psc_write_byte(pIER, irq_bit);
-                       m68k_handle_int(base_irq + i);
+       irq_num = irq << 3;
+       irq_bit = 1;
+       do {
+               if (events & irq_bit) {
                        psc_write_byte(pIFR, irq_bit);
-                       psc_write_byte(pIER, irq_bit | 0x80);
+                       m68k_handle_int(irq_num);
                }
-       }
+               irq_num++;
+               irq_bit <<= 1;
+       } while (events >= irq_bit);
        return IRQ_HANDLED;
 }