m68k: Mac IRQ cleanup

[firefly-linux-kernel-4.4.55.git] / arch / m68k / mac / via.c

diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index 83a3bb0c032521abba6cfdd4026aa10705d7bdbc..d5cac72eb3db1d25b41ef780372a69a36742c925 100644 (file)
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -443,11 +443,6 @@ void __init via_nubus_init(void)
 /*
  * The generic VIA interrupt routines (shamelessly stolen from Alan Cox's
  * via6522.c :-), disable/pending masks added.
- *
- * The new interrupt architecture in macints.c takes care of a lot of the
- * gruntwork for us, including tallying the interrupts and calling the
- * handlers on the linked list. All we need to do here is basically generate
- * the machspec interrupt number after clearing the interrupt.
  */
 
 irqreturn_t via1_irq(int irq, void *dev_id)
@@ -463,10 +458,8 @@ irqreturn_t via1_irq(int irq, void *dev_id)
        irq_bit = 1;
        do {
                if (events & irq_bit) {
-                       via1[vIER] = irq_bit;
                        via1[vIFR] = irq_bit;
                        m68k_handle_int(irq_num);
-                       via1[vIER] = irq_bit | 0x80;
                }
                ++irq_num;
                irq_bit <<= 1;
@@ -502,11 +495,8 @@ irqreturn_t via2_irq(int irq, void *dev_id)
        irq_bit = 1;
        do {
                if (events & irq_bit) {
-                       via2[gIER] = irq_bit;
                        via2[gIFR] = irq_bit | rbv_clear;
                        m68k_handle_int(irq_num);
-                       if (irq_num != IRQ_MAC_NUBUS || nubus_disabled == 0)
-                               via2[gIER] = irq_bit | 0x80;
                }
                ++irq_num;
                irq_bit <<= 1;