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>

1 files changed, 16 insertions, 1 deletions

diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 08a3b99abe61..b82863887f10 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -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;