The presence of the Apple Peripheral System Controller (PSC) can be
tested for by just checking its base address pointer.
Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
---
arch/m68k/include/asm/mac_psc.h | 1 -
arch/m68k/mac/macints.c | 6 +++---
arch/m68k/mac/psc.c | 7 +++----
3 files changed, 6 insertions(+), 8 deletions(-)
diff --git a/arch/m68k/include/asm/mac_psc.h b/arch/m68k/include/asm/mac_psc.h
index e5c0d71d154324bf..923305117a69ad5b 100644
--- a/arch/m68k/include/asm/mac_psc.h
+++ b/arch/m68k/include/asm/mac_psc.h
@@ -209,7 +209,6 @@
#ifndef __ASSEMBLY__
extern volatile __u8 *psc;
-extern int psc_present;
extern void psc_register_interrupts(void);
extern void psc_irq_enable(int);
diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c
index da42c1885cb0b932..8b9dda28e0d07b4d 100644
--- a/arch/m68k/mac/macints.c
+++ b/arch/m68k/mac/macints.c
@@ -174,7 +174,7 @@ void __init mac_init_IRQ(void)
oss_register_interrupts();
else
via_register_interrupts();
- if (psc_present)
+ if (psc)
psc_register_interrupts();
if (baboon_present)
baboon_register_interrupts();
@@ -211,7 +211,7 @@ void mac_irq_enable(struct irq_data *data)
case 4:
case 5:
case 6:
- if (psc_present)
+ if (psc)
psc_irq_enable(irq);
else if (oss_present)
oss_irq_enable(irq);
@@ -241,7 +241,7 @@ void mac_irq_disable(struct irq_data *data)
case 4:
case 5:
case 6:
- if (psc_present)
+ if (psc)
psc_irq_disable(irq);
else if (oss_present)
oss_irq_disable(irq);
diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c
index 2290c0cae48beb8a..cb2b1a3a2b62d97f 100644
--- a/arch/m68k/mac/psc.c
+++ b/arch/m68k/mac/psc.c
@@ -27,7 +27,6 @@
#define DEBUG_PSC
-int psc_present;
volatile __u8 *psc;
EXPORT_SYMBOL_GPL(psc);
@@ -39,7 +38,9 @@ static void psc_debug_dump(void)
{
int i;
- if (!psc_present) return;
+ if (!psc)
+ return;
+
for (i = 0x30 ; i < 0x70 ; i += 0x10) {
printk("PSC #%d: IFR = 0x%02X IER = 0x%02X\n",
i >> 4,
@@ -81,7 +82,6 @@ void __init psc_init(void)
&& macintosh_config->ident != MAC_MODEL_Q840)
{
psc = NULL;
- psc_present = 0;
return;
}
@@ -91,7 +91,6 @@ void __init psc_init(void)
*/
psc = (void *) PSC_BASE;
- psc_present = 1;
printk("PSC detected at %p\n", psc);
--
1.9.1
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