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OMAP: Add new function to check wether there is irq pending 

Add common omap2/3 function to check wether there is irq pending.
Switch to use it in omap2 pm code instead of its own.

Signed-off-by: Jouni Hogander <jouni.hogander@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Jouni Hogander 2009-02-03 15:49:04 -08:00 committed by Kevin Hilman
parent 8bd2294922
commit 94434535bd
3 changed files with 20 additions and 17 deletions
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17
arch/arm/mach-omap2/irq.c
View File

@ -28,7 +28,6 @@
#define INTC_MIR_CLEAR0 0x0088
#define INTC_MIR_SET0 0x008c
#define INTC_PENDING_IRQ0 0x0098
/* Number of IRQ state bits in each MIR register */
#define IRQ_BITS_PER_REG 32
@ -156,6 +155,22 @@ static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank)
intc_bank_write_reg(1 << 0, bank, INTC_SYSCONFIG);
}
int omap_irq_pending(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(irq_banks); i++) {
struct omap_irq_bank *bank = irq_banks + i;
int irq;
for (irq = 0; irq < bank->nr_irqs; irq += 32)
if (intc_bank_read_reg(bank, INTC_PENDING_IRQ0 +
((irq >> 5) << 5)))
return 1;
}
return 0;
}
void __init omap_init_irq(void)
{
unsigned long nr_of_irqs = 0;

19
arch/arm/mach-omap2/pm24xx.c
View File

@ -76,19 +76,6 @@ static int omap2_fclks_active(void)
return 0;
}
static int omap2_irq_pending(void)
{
u32 pending_reg = 0x480fe098;
int i;
for (i = 0; i < 4; i++) {
if (omap_readl(pending_reg))
return 1;
pending_reg += 0x20;
}
return 0;
}
static void omap2_enter_full_retention(void)
{
u32 l;
@ -127,7 +114,7 @@ static void omap2_enter_full_retention(void)
/* One last check for pending IRQs to avoid extra latency due
* to sleeping unnecessarily. */
if (omap2_irq_pending())
if (omap_irq_pending())
goto no_sleep;
/* Jump to SRAM suspend code */
@ -262,13 +249,13 @@ static void omap2_pm_idle(void)
local_fiq_disable();
if (!omap2_can_sleep()) {
if (omap2_irq_pending())
if (omap_irq_pending())
goto out;
omap2_enter_mpu_retention();
goto out;
}
if (omap2_irq_pending())
if (omap_irq_pending())
goto out;
omap2_enter_full_retention();

1
arch/arm/plat-omap/include/mach/irqs.h
View File

@ -467,6 +467,7 @@
#ifndef __ASSEMBLY__
extern void omap_init_irq(void);
extern int omap_irq_pending(void);
#endif
#include <mach/hardware.h>