[PATCH 02/11] OMAP: Add new function to check wether there is irq pending

[Kevin Hilman]

From: Jouni Hogander <jouni.hogan...@nokia.com>

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.hogan...@nokia.com>
Signed-off-by: Tony Lindgren <t...@atomide.com>
Signed-off-by: Kevin Hilman <khil...@deeprootsystems.com>
---
 arch/arm/mach-omap2/irq.c              |   17 ++++++++++++++++-
 arch/arm/mach-omap2/pm24xx.c           |   19 +++----------------
 arch/arm/plat-omap/include/mach/irqs.h |    1 +
 3 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 998c5c4..f5de43d 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
 
@@ -157,6 +156,22 @@ 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;
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index 2a2d1a3..da4294d 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -77,19 +77,6 @@ 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;
@@ -128,7 +115,7 @@ 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 */
@@ -274,13 +261,13 @@ static void omap2_pm_idle(void)
        local_fiq_disable();
 
        if (!omap2_can_sleep()) {
-               if (!atomic_read(&sleep_block) && omap2_irq_pending())
+               if (!atomic_read(&sleep_block) && 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();
diff --git a/arch/arm/plat-omap/include/mach/irqs.h 
b/arch/arm/plat-omap/include/mach/irqs.h
index 7f57ee6..f5f7c92 100644
--- a/arch/arm/plat-omap/include/mach/irqs.h
+++ b/arch/arm/plat-omap/include/mach/irqs.h
@@ -467,6 +467,7 @@
 
 #ifndef __ASSEMBLY__
 extern void omap_init_irq(void);
+extern int omap_irq_pending(void);
 #endif
 
 #include <mach/hardware.h>
-- 
1.6.2.2

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