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path: root/drivers/irqchip/irq-armada-370-xp.c
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Diffstat (limited to 'drivers/irqchip/irq-armada-370-xp.c')
-rw-r--r--drivers/irqchip/irq-armada-370-xp.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 1115bf878ca0..ad1e6422a732 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -48,7 +48,9 @@
#define ARMADA_370_XP_TIMER0_PER_CPU_IRQ (5)
-#define ACTIVE_DOORBELLS (8)
+#define IPI_DOORBELL_START (0)
+#define IPI_DOORBELL_END (8)
+#define IPI_DOORBELL_MASK 0xFF
static DEFINE_RAW_SPINLOCK(irq_controller_lock);
@@ -192,7 +194,7 @@ void armada_xp_mpic_smp_cpu_init(void)
writel(0, per_cpu_int_base + ARMADA_370_XP_IN_DRBEL_CAUSE_OFFS);
/* Enable first 8 IPIs */
- writel((1 << ACTIVE_DOORBELLS) - 1, per_cpu_int_base +
+ writel(IPI_DOORBELL_MASK, per_cpu_int_base +
ARMADA_370_XP_IN_DRBEL_MSK_OFFS);
/* Unmask IPI interrupt */
@@ -231,13 +233,14 @@ armada_370_xp_handle_irq(struct pt_regs *regs)
ipimask = readl_relaxed(per_cpu_int_base +
ARMADA_370_XP_IN_DRBEL_CAUSE_OFFS)
- & 0xFF;
+ & IPI_DOORBELL_MASK;
- writel(0x0, per_cpu_int_base +
+ writel(~IPI_DOORBELL_MASK, per_cpu_int_base +
ARMADA_370_XP_IN_DRBEL_CAUSE_OFFS);
/* Handle all pending doorbells */
- for (ipinr = 0; ipinr < ACTIVE_DOORBELLS; ipinr++) {
+ for (ipinr = IPI_DOORBELL_START;
+ ipinr < IPI_DOORBELL_END; ipinr++) {
if (ipimask & (0x1 << ipinr))
handle_IPI(ipinr, regs);
}