Commit 42677db9 authored by Hanjun Guo's avatar Hanjun Guo Committed by Marc Zyngier

irqchip/gicv3-its: platform-msi: Refactor its_pmsi_init() to prepare for ACPI

Introduce its_pmsi_init_one() to separate firmware dependent
code (ie OF dependent code) and firmware agnostic code so
that gic3-its code can be made to support other firmware
bindings easily.
Signed-off-by: default avatarHanjun Guo <hanjun.guo@linaro.org>
[lorenzo.pieralisi@arm.com: rewrote commit log]
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: default avatarMatthias Brugger <mbrugger@suse.com>
Tested-by: default avatarMing Lei <ming.lei@canonical.com>
Tested-by: default avatarWei Xu <xuwei5@hisilicon.com>
Tested-by: default avatarSinan Kaya <okaya@codeaurora.org>
Cc: Tomasz Nowicki <tn@semihalf.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 9ab460c2
......@@ -82,34 +82,43 @@ static struct of_device_id its_device_id[] = {
{},
};
static int __init its_pmsi_init(void)
static int __init its_pmsi_init_one(struct fwnode_handle *fwnode,
const char *name)
{
struct device_node *np;
struct irq_domain *parent;
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);
parent = irq_find_matching_fwnode(fwnode, DOMAIN_BUS_NEXUS);
if (!parent || !msi_get_domain_info(parent)) {
pr_err("%s: unable to locate ITS domain\n",
np->full_name);
continue;
pr_err("%s: unable to locate ITS domain\n", name);
return -ENXIO;
}
if (!platform_msi_create_irq_domain(of_node_to_fwnode(np),
&its_pmsi_domain_info,
if (!platform_msi_create_irq_domain(fwnode, &its_pmsi_domain_info,
parent)) {
pr_err("%s: unable to create platform domain\n",
np->full_name);
continue;
pr_err("%s: unable to create platform domain\n", name);
return -ENXIO;
}
pr_info("Platform MSI: %s domain created\n", np->full_name);
pr_info("Platform MSI: %s domain created\n", name);
return 0;
}
static void __init its_pmsi_of_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;
its_pmsi_init_one(of_node_to_fwnode(np), np->full_name);
}
}
static int __init its_pmsi_init(void)
{
its_pmsi_of_init();
return 0;
}
early_initcall(its_pmsi_init);
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