diff options
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-stm32-exti.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c index 3b35f138ed3d..e5714a0111e7 100644 --- a/drivers/irqchip/irq-stm32-exti.c +++ b/drivers/irqchip/irq-stm32-exti.c @@ -61,6 +61,7 @@ struct stm32_exti_host_data { struct stm32_exti_chip_data *chips_data; const struct stm32_exti_drv_data *drv_data; struct hwspinlock *hwlock; + bool dt_has_irqs_desc; /* skip internal desc_irqs array and get it from DT */ }; static struct stm32_exti_host_data *stm32_host_data; @@ -731,6 +732,23 @@ static int stm32_exti_h_domain_alloc(struct irq_domain *dm, irq_domain_set_hwirq_and_chip(dm, virq, hwirq, chip, chip_data); + if (host_data->dt_has_irqs_desc) { + struct of_phandle_args out_irq; + int ret; + + ret = of_irq_parse_one(host_data->dev->of_node, hwirq, &out_irq); + if (ret) + return ret; + /* we only support one parent, so far */ + if (of_node_to_fwnode(out_irq.np) != dm->parent->fwnode) + return -EINVAL; + + of_phandle_args_to_fwspec(out_irq.np, out_irq.args, + out_irq.args_count, &p_fwspec); + + return irq_domain_alloc_irqs_parent(dm, virq, 1, &p_fwspec); + } + if (!host_data->drv_data->desc_irqs) return -EINVAL; @@ -975,6 +993,9 @@ static int stm32_exti_probe(struct platform_device *pdev) if (ret) return ret; + if (of_property_read_bool(np, "interrupts-extended")) + host_data->dt_has_irqs_desc = true; + stm32_exti_h_syscore_init(host_data); return 0; |