add support for GPIO IRQs

[openwrt/openwrt.git] / target / linux / adm5120 / files / arch / mips / adm5120 / irq.c

diff --git a/target/linux/adm5120/files/arch/mips/adm5120/irq.c b/target/linux/adm5120/files/arch/mips/adm5120/irq.c
index 6e3fc62220d83b41f5c8fc0f2e5049d62d3f5791..361dcb8628afddf0618827ed6cf663811d96774e 100644 (file)
--- a/target/linux/adm5120/files/arch/mips/adm5120/irq.c
+++ b/target/linux/adm5120/files/arch/mips/adm5120/irq.c
@@ -76,7 +76,7 @@ static void adm5120_intc_irq_mask(unsigned int irq)
 static int adm5120_intc_irq_set_type(unsigned int irq, unsigned int flow_type)
 {
        /* TODO: not yet tested */
-#if 1
+
        unsigned int sense;
        unsigned long mode;
        int err = 0;
@@ -114,13 +114,13 @@ static int adm5120_intc_irq_set_type(unsigned int irq, unsigned int flow_type)
                        mode &= (1 << (irq-ADM5120_INTC_IRQ_BASE));
 
                INTC_WRITE(INTC_REG_INT_MODE, mode);
-               /* fallthrogh */
+               /* fallthrough */
        default:
                irq_desc[irq].status &= ~IRQ_TYPE_SENSE_MASK;
                irq_desc[irq].status |= sense;
                break;
        }
-#endif
+
        return 0;
 }
 
@@ -161,10 +161,13 @@ static void __init adm5120_intc_irq_init(int base)
 
        /* disable all interrupts */
        INTC_WRITE(INTC_REG_IRQ_DISABLE, INTC_INT_ALL);
+
        /* setup all interrupts to generate IRQ instead of FIQ */
        INTC_WRITE(INTC_REG_INT_MODE, 0);
+
        /* set active level for all external interrupts to HIGH */
        INTC_WRITE(INTC_REG_INT_LEVEL, 0);
+
        /* disable usage of the TEST_SOURCE register */
        INTC_WRITE(INTC_REG_IRQ_SOURCE_SELECT, 0);