X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Fmips%2Fau1000%2Fcommon%2Firq.c;h=1339a0979f66d61be72c1e65fdce3856ff558149;hp=ebf93bdbad14095ac4b0deaacdb51d845094d74a;hb=3d5271f9883cba7b54762bc4fe027d4172f06db7;hpb=e3ad1c23ba72214669b364c6fa304531dc768c3e

diff --git a/arch/mips/au1000/common/irq.c b/arch/mips/au1000/common/irq.c
index ebf93bdbad14..1339a0979f66 100644
--- a/arch/mips/au1000/common/irq.c
+++ b/arch/mips/au1000/common/irq.c
@@ -83,7 +83,7 @@ inline void local_disable_irq(unsigned int irq_nr);
 void	(*board_init_irq)(void);
 
 #ifdef CONFIG_PM
-extern void counter0_irq(int irq, void *dev_id, struct pt_regs *regs);
+extern irqreturn_t counter0_irq(int irq, void *dev_id, struct pt_regs *regs);
 #endif
 
 static DEFINE_SPINLOCK(irq_lock);
@@ -293,8 +293,32 @@ static struct hw_interrupt_type level_irq_type = {
 };
 
 #ifdef CONFIG_PM
-void startup_match20_interrupt(void)
+void startup_match20_interrupt(irqreturn_t (*handler)(int, void *, struct pt_regs *))
 {
+	struct irq_desc *desc = &irq_desc[AU1000_TOY_MATCH2_INT];
+
+	static struct irqaction action;
+	memset(&action, 0, sizeof(struct irqaction));
+
+	/* This is a big problem.... since we didn't use request_irq
+	 * when kernel/irq.c calls probe_irq_xxx this interrupt will
+	 * be probed for usage. This will end up disabling the device :(
+	 * Give it a bogus "action" pointer -- this will keep it from
+	 * getting auto-probed!
+	 *
+	 * By setting the status to match that of request_irq() we
+	 * can avoid it.  --cgray
+	*/
+	action.dev_id = handler;
+	action.flags = SA_INTERRUPT;
+	cpus_clear(action.mask);
+	action.name = "Au1xxx TOY";
+	action.handler = handler;
+	action.next = NULL;
+
+	desc->action = &action;
+	desc->status &= ~(IRQ_DISABLED | IRQ_AUTODETECT | IRQ_WAITING | IRQ_INPROGRESS);
+
 	local_enable_irq(AU1000_TOY_MATCH2_INT);
 }
 #endif
@@ -422,7 +446,6 @@ void __init arch_init_irq(void)
 	extern int au1xxx_ic0_nr_irqs;
 
 	cp0_status = read_c0_status();
-	memset(irq_desc, 0, sizeof(irq_desc));
 	set_except_vector(0, au1000_IRQ);
 
 	/* Initialize interrupt controllers to a safe state.
@@ -517,17 +540,7 @@ void intc0_req1_irqdispatch(struct pt_regs *regs)
 
 	irq = au_ffs(intc0_req1) - 1;
 	intc0_req1 &= ~(1<<irq);
-#ifdef CONFIG_PM
-	if (irq == AU1000_TOY_MATCH2_INT) {
-		mask_and_ack_rise_edge_irq(irq);
-		counter0_irq(irq, NULL, regs);
-		local_enable_irq(irq);
-	}
-	else
-#endif
-	{
-		do_IRQ(irq, regs);
-	}
+	do_IRQ(irq, regs);
 }