diff options
Diffstat (limited to 'drivers/irqchip/irq-csky-mpintc.c')
| -rw-r--r-- | drivers/irqchip/irq-csky-mpintc.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/irqchip/irq-csky-mpintc.c b/drivers/irqchip/irq-csky-mpintc.c index c67c961ab6cc..a4c1aacba1ff 100644 --- a/drivers/irqchip/irq-csky-mpintc.c +++ b/drivers/irqchip/irq-csky-mpintc.c @@ -89,8 +89,19 @@ static int csky_irq_set_affinity(struct irq_data *d, if (cpu >= nr_cpu_ids) return -EINVAL; - /* Enable interrupt destination */ - cpu |= BIT(31); + /* + * The csky,mpintc could support auto irq deliver, but it only + * could deliver external irq to one cpu or all cpus. So it + * doesn't support deliver external irq to a group of cpus + * with cpu_mask. + * SO we only use auto deliver mode when affinity mask_val is + * equal to cpu_present_mask. + * + */ + if (cpumask_equal(mask_val, cpu_present_mask)) + cpu = 0; + else + cpu |= BIT(31); writel_relaxed(cpu, INTCG_base + INTCG_CIDSTR + offset); |