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[MIPS] Alchemy: Nuke homebrew setup_irq(), it's broken and unnecessary.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2007-10-23 02:59:55 +01:00
parent be5f1f2114
commit 310a09d850
2 changed files with 9 additions and 34 deletions
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32
arch/mips/au1000/common/irq.c
View File

@ -318,38 +318,6 @@ static struct irq_chip level_irq_type = {
.end = end_irq,
};
#ifdef CONFIG_PM
void startup_match20_interrupt(irq_handler_t handler)
{
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 = IRQF_DISABLED;
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
static void __init setup_local_irq(unsigned int irq_nr, int type, int int_req)
{
unsigned int bit = irq_nr - AU1000_INTC0_INT_BASE;

11
arch/mips/au1000/common/time.c
View File

@ -67,7 +67,7 @@ static DEFINE_SPINLOCK(time_lock);
unsigned long wtimer;
#ifdef CONFIG_PM
irqreturn_t counter0_irq(int irq, void *dev_id)
static irqreturn_t counter0_irq(int irq, void *dev_id)
{
unsigned long pc0;
int time_elapsed;
@ -117,6 +117,13 @@ irqreturn_t counter0_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
struct irqaction counter0_action = {
.handler = counter0_irq,
.flags = IRQF_DISABLED,
.name = "alchemy-toy",
.dev_id = NULL,
};
/* When we wakeup from sleep, we have to "catch up" on all of the
* timer ticks we have missed.
*/
@ -280,7 +287,7 @@ void __init plat_timer_setup(struct irqaction *irq)
au_writel(last_match20 + MATCH20_INC, SYS_TOYMATCH2);
au_sync();
while (au_readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_M20);
startup_match20_interrupt(counter0_irq);
setup_irq(AU1000_TOY_MATCH2_INT, &counter0_action);
/* We can use the real 'wait' instruction.
*/