[AVR32] Fix a couple of sparse warnings

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
diff --git a/arch/avr32/mach-at32ap/extint.c b/arch/avr32/mach-at32ap/extint.c
index 8acd010..f5bfd4c 100644
--- a/arch/avr32/mach-at32ap/extint.c
+++ b/arch/avr32/mach-at32ap/extint.c
@@ -142,7 +142,7 @@
 	return ret;
 }
 
-struct irq_chip eic_chip = {
+static struct irq_chip eic_chip = {
 	.name		= "eic",
 	.ack		= eic_ack_irq,
 	.mask		= eic_mask_irq,
diff --git a/arch/avr32/mach-at32ap/pm.h b/arch/avr32/mach-at32ap/pm.h
index 47efd0d..694d521 100644
--- a/arch/avr32/mach-at32ap/pm.h
+++ b/arch/avr32/mach-at32ap/pm.h
@@ -113,8 +113,8 @@
 
 /* Register access macros */
 #define pm_readl(reg)							\
-	__raw_readl((void __iomem *)AT32_PM_BASE + PM_##reg)
+	__raw_readl((void __iomem __force *)AT32_PM_BASE + PM_##reg)
 #define pm_writel(reg,value)						\
-	__raw_writel((value), (void __iomem *)AT32_PM_BASE + PM_##reg)
+	__raw_writel((value), (void __iomem __force *)AT32_PM_BASE + PM_##reg)
 
 #endif /* __ARCH_AVR32_MACH_AT32AP_PM_H__ */