Commit deac7fc1 authored by Marc Zyngier's avatar Marc Zyngier

irqchip/gic-v3-its: Parse new version of msi-parent property

Now that 126b16e2 ("Docs: dt: add generic MSI bindings")
has made it into the tree, the time has come to get rid of the
old hack, and to parse msi-parent in its full glory.
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent c8d17588
...@@ -29,13 +29,25 @@ static int its_pmsi_prepare(struct irq_domain *domain, struct device *dev, ...@@ -29,13 +29,25 @@ static int its_pmsi_prepare(struct irq_domain *domain, struct device *dev,
{ {
struct msi_domain_info *msi_info; struct msi_domain_info *msi_info;
u32 dev_id; u32 dev_id;
int ret; int ret, index = 0;
msi_info = msi_get_domain_info(domain->parent); msi_info = msi_get_domain_info(domain->parent);
/* Suck the DeviceID out of the msi-parent property */ /* Suck the DeviceID out of the msi-parent property */
ret = of_property_read_u32_index(dev->of_node, "msi-parent", do {
1, &dev_id); 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) if (ret)
return ret; return ret;
......
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