diff options
Diffstat (limited to 'drivers/irqchip/irq-gic-v3-its-platform-msi.c')
| -rw-r--r-- | drivers/irqchip/irq-gic-v3-its-platform-msi.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its-platform-msi.c b/drivers/irqchip/irq-gic-v3-its-platform-msi.c index a86550562..470b4aa7d 100644 --- a/drivers/irqchip/irq-gic-v3-its-platform-msi.c +++ b/drivers/irqchip/irq-gic-v3-its-platform-msi.c @@ -29,13 +29,25 @@ static int its_pmsi_prepare(struct irq_domain *domain, struct device *dev, { struct msi_domain_info *msi_info; u32 dev_id; - int ret; + int ret, index = 0; msi_info = msi_get_domain_info(domain->parent); /* Suck the DeviceID out of the msi-parent property */ - ret = of_property_read_u32_index(dev->of_node, "msi-parent", - 1, &dev_id); + do { + struct of_phandle_args args; + + ret = of_parse_phandle_with_args(dev->of_node, + "msi-parent", "#msi-cells", + index, &args); + if (args.np == irq_domain_get_of_node(domain)) { + if (WARN_ON(args.args_count != 1)) + return -EINVAL; + dev_id = args.args[0]; + break; + } + } while (!ret); + if (ret) return ret; @@ -78,7 +90,8 @@ static int __init its_pmsi_init(void) continue; } - if (!platform_msi_create_irq_domain(np, &its_pmsi_domain_info, + if (!platform_msi_create_irq_domain(of_node_to_fwnode(np), + &its_pmsi_domain_info, parent)) { pr_err("%s: unable to create platform domain\n", np->full_name); |