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-rw-r--r--arch/arm/plat-mxc/include/mach/irqs.h2
-rw-r--r--arch/arm/plat-mxc/irq.c14
2 files changed, 10 insertions, 6 deletions
diff --git a/arch/arm/plat-mxc/include/mach/irqs.h b/arch/arm/plat-mxc/include/mach/irqs.h
index c02b8fc2d82..518a36504b8 100644
--- a/arch/arm/plat-mxc/include/mach/irqs.h
+++ b/arch/arm/plat-mxc/include/mach/irqs.h
@@ -45,7 +45,7 @@
#define NR_IRQS (MXC_IPU_IRQ_START + MX3_IPU_IRQS)
-extern void imx_irq_set_priority(unsigned char irq, unsigned char prio);
+extern int imx_irq_set_priority(unsigned char irq, unsigned char prio);
/* all normal IRQs can be FIQs */
#define FIQ_START 0
diff --git a/arch/arm/plat-mxc/irq.c b/arch/arm/plat-mxc/irq.c
index 6e7578a3514..0fb68a531f5 100644
--- a/arch/arm/plat-mxc/irq.c
+++ b/arch/arm/plat-mxc/irq.c
@@ -50,23 +50,27 @@
#define IIM_PROD_REV_SH 3
#define IIM_PROD_REV_LEN 5
-#ifdef CONFIG_MXC_IRQ_PRIOR
-void imx_irq_set_priority(unsigned char irq, unsigned char prio)
+int imx_irq_set_priority(unsigned char irq, unsigned char prio)
{
+#ifdef CONFIG_MXC_IRQ_PRIOR
unsigned int temp;
unsigned int mask = 0x0F << irq % 8 * 4;
- if (irq > 63)
- return;
+ if (irq >= MXC_INTERNAL_IRQS)
+ return -EINVAL;;
temp = __raw_readl(AVIC_NIPRIORITY(irq / 8));
temp &= ~mask;
temp |= prio & mask;
__raw_writel(temp, AVIC_NIPRIORITY(irq / 8));
+
+ return 0;
+#else
+ return -ENOSYS;
+#endif
}
EXPORT_SYMBOL(imx_irq_set_priority);
-#endif
#ifdef CONFIG_FIQ
int mxc_set_irq_fiq(unsigned int irq, unsigned int type)