Au1x PM fixes.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/au1000/common/time.c b/arch/mips/au1000/common/time.c
index 2f81a0c..883d3f3 100644
--- a/arch/mips/au1000/common/time.c
+++ b/arch/mips/au1000/common/time.c
@@ -63,8 +63,11 @@
static unsigned int timerhi = 0, timerlo = 0;
#ifdef CONFIG_PM
-#define MATCH20_INC 328
-extern void startup_match20_interrupt(void (*handler)(int, void *, struct pt_regs *));
+#if HZ < 100 || HZ > 1000
+#error "unsupported HZ value! Must be in [100,1000]"
+#endif
+#define MATCH20_INC (328*100/HZ) /* magic number 328 is for HZ=100... */
+extern void startup_match20_interrupt(irqreturn_t (*handler)(int, void *, struct pt_regs *));
static unsigned long last_pc0, last_match20;
#endif
@@ -116,17 +119,16 @@
}
#ifdef CONFIG_PM
-void counter0_irq(int irq, void *dev_id, struct pt_regs *regs)
+irqreturn_t counter0_irq(int irq, void *dev_id, struct pt_regs *regs)
{
unsigned long pc0;
int time_elapsed;
static int jiffie_drift = 0;
- kstat.irqs[0][irq]++;
if (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_M20) {
/* should never happen! */
- printk(KERN_WARNING "counter 0 w status eror\n");
- return;
+ printk(KERN_WARNING "counter 0 w status error\n");
+ return IRQ_NONE;
}
pc0 = au_readl(SYS_TOYREAD);
@@ -163,6 +165,8 @@
update_process_times(user_mode(regs));
#endif
}
+
+ return IRQ_HANDLED;
}
/* When we wakeup from sleep, we have to "catch up" on all of the
@@ -439,7 +443,7 @@
au_sync();
while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_M20);
- /* setup match20 to interrupt once every 10ms */
+ /* setup match20 to interrupt once every HZ */
last_pc0 = last_match20 = au_readl(SYS_TOYREAD);
au_writel(last_match20 + MATCH20_INC, SYS_TOYMATCH2);
au_sync();