Commit-ID: 42677db9004f959f6f881c6c138d080c0923b5e2
Gitweb: http://git.kernel.org/tip/42677db9004f959f6f881c6c138d080c0923b5e2
Author: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
AuthorDate: Tue, 7 Mar 2017 20:40:01 +0800
Committer: Marc Zyngier <marc.zyngier@xxxxxxx>
CommitDate: Fri, 7 Apr 2017 10:52:18 +0100
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: Hanjun Guo <hanjun.guo@xxxxxxxxxx>
[lorenzo.pieralisi@xxxxxxx: rewrote commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@xxxxxxx>
Reviewed-by: Matthias Brugger <mbrugger@xxxxxxxx>
Tested-by: Ming Lei <ming.lei@xxxxxxxxxxxxx>
Tested-by: Wei Xu <xuwei5@xxxxxxxxxxxxx>
Tested-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
Cc: Tomasz Nowicki <tn@xxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
drivers/irqchip/irq-gic-v3-its-platform-msi.c | 45 ++++++++++++++++-----------
1 file changed, 27 insertions(+), 18 deletions(-)
diff --git a/drivers/irqchip/irq-gic-v3-its-platform-msi.c b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
index 3c94278..3d9efd1 100644
--- a/drivers/irqchip/irq-gic-v3-its-platform-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-platform-msi.c
@@ -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;
+ 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", name);
+ return -ENXIO;
+ }
+
+ if (!platform_msi_create_irq_domain(fwnode, &its_pmsi_domain_info,
+ parent)) {
+ pr_err("%s: unable to create platform domain\n", name);
+ return -ENXIO;
+ }
+
+ 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;
- 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);
- continue;
- }
-
- 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);
- continue;
- }
-
- pr_info("Platform MSI: %s domain created\n", np->full_name);
+ 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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