diff options
author | Tomasz Nowicki <tn@semihalf.com> | 2015-08-10 17:40:32 +0200 |
---|---|---|
committer | Graeme Gregory <graeme.gregory@linaro.org> | 2016-03-16 12:41:14 +0000 |
commit | 009cb1672cfa8f4531ee7fb1049e9649c5a09906 (patch) | |
tree | 8df7f80444fce1adba6e1f10386526e38b804072 | |
parent | 85a507ec27f28a2758d42f6e82d72ef7d434b1fb (diff) |
acpi, gicv3, msi: Factor out code that might be reused for ACPI equivalent.
Firmware agnostic code lands in separate function which do necessary
domain initialization based on unique domain handler.
Signed-off-by: Tomasz Nowicki <tn@semihalf.com>
-rw-r--r-- | drivers/irqchip/irq-gic-v3-its-pci-msi.c | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its-pci-msi.c b/drivers/irqchip/irq-gic-v3-its-pci-msi.c index aee60ed025dc..06165cb48fd4 100644 --- a/drivers/irqchip/irq-gic-v3-its-pci-msi.c +++ b/drivers/irqchip/irq-gic-v3-its-pci-msi.c @@ -106,34 +106,47 @@ static struct of_device_id its_device_id[] = { {}, }; -static int __init its_pci_msi_init(void) +static int __init its_pci_msi_init_one(struct fwnode_handle *handle) { - struct device_node *np; struct irq_domain *parent; + parent = irq_find_matching_fwnode(handle, DOMAIN_BUS_NEXUS); + if (!parent || !msi_get_domain_info(parent)) { + pr_err("Unable to locate ITS domain\n"); + return -ENXIO; + } + + if (!pci_msi_create_irq_domain(handle, &its_pci_msi_domain_info, + parent)) { + pr_err("Unable to create PCI domain\n"); + return -ENOMEM; + } + + return 0; +} + +static int __init its_pci_of_msi_init(void) +{ + struct device_node *np; + for (np = of_find_matching_node(NULL, its_device_id); np; np = of_find_matching_node(np, its_device_id)) { if (!of_property_read_bool(np, "msi-controller")) continue; - parent = irq_find_matching_host(np, DOMAIN_BUS_NEXUS); - if (!parent || !msi_get_domain_info(parent)) { - pr_err("%s: unable to locate ITS domain\n", - np->full_name); + if (its_pci_msi_init_one(of_node_to_fwnode(np))) continue; - } - - if (!pci_msi_create_irq_domain(of_node_to_fwnode(np), - &its_pci_msi_domain_info, - parent)) { - pr_err("%s: unable to create PCI domain\n", - np->full_name); - continue; - } pr_info("PCI/MSI: %s domain created\n", np->full_name); } return 0; } + +static int __init its_pci_msi_init(void) +{ + its_pci_of_msi_init(); + return 0; +} + early_initcall(its_pci_msi_init); |