[ARM] pxa: fix irq suspend/resume for pxa25x

PXA25x does not have IPR registers, saving and restoring should happen
only for pxa27x and pxa3xx.

Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 10 insertions, 4 deletions

diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c
index 6112af431fa4..1beb40f692fc 100644
--- a/arch/arm/mach-pxa/irq.c
+++ b/arch/arm/mach-pxa/irq.c
@@ -164,8 +164,11 @@ static int pxa_irq_suspend(struct sys_device *dev, pm_message_t state)
                 saved_icmr[i] = _ICMR(irq);
                 _ICMR(irq) = 0;
         }
-        for (i = 0; i < pxa_internal_irq_nr; i++)
-                saved_ipr[i] = IPR(i);
+
+        if (cpu_is_pxa27x() || cpu_is_pxa3xx()) {
+                for (i = 0; i < pxa_internal_irq_nr; i++)
+                        saved_ipr[i] = IPR(i);
+        }
 
         return 0;
 }
@@ -174,12 +177,15 @@ static int pxa_irq_resume(struct sys_device *dev)
 {
         int i, irq = PXA_IRQ(0);
 
+        if (cpu_is_pxa27x() || cpu_is_pxa3xx()) {
+                for (i = 0; i < pxa_internal_irq_nr; i++)
+                        IPR(i) = saved_ipr[i];
+        }
+
         for (i = 0; irq < PXA_IRQ(pxa_internal_irq_nr); i++, irq += 32) {
                 _ICMR(irq) = saved_icmr[i];
                 _ICLR(irq) = 0;
         }
-        for (i = 0; i < pxa_internal_irq_nr; i++)
-                IPR(i) = saved_ipr[i];
 
         ICCR = 1;
         return 0;