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authorLiu Peibao <liupeibao@loongson.cn>2022-11-14 14:38:23 +0300
committerMarc Zyngier <maz@kernel.org>2022-11-26 14:54:11 +0300
commit855d4ca4bdb366aab3d43408b74e02ab629d1d55 (patch)
treead7a828a1222da5bf18a264478213f2663f17dcd /drivers/irqchip
parent247f34f7b80357943234f93f247a1ae6b6c3a740 (diff)
downloadlinux-855d4ca4bdb366aab3d43408b74e02ab629d1d55.tar.xz
irqchip: loongarch-cpu: add DT support
LoongArch is coming to support booting with FDT, so DT support of this driver is desired. Signed-off-by: Liu Peibao <liupeibao@loongson.cn> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20221114113824.1880-2-liupeibao@loongson.cn
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-loongarch-cpu.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-loongarch-cpu.c b/drivers/irqchip/irq-loongarch-cpu.c
index 741612ba6a52..a28b7c549654 100644
--- a/drivers/irqchip/irq-loongarch-cpu.c
+++ b/drivers/irqchip/irq-loongarch-cpu.c
@@ -92,6 +92,25 @@ static const struct irq_domain_ops loongarch_cpu_intc_irq_domain_ops = {
.xlate = irq_domain_xlate_onecell,
};
+#ifdef CONFIG_OF
+int __init loongarch_cpu_irq_of_init(struct device_node *of_node,
+ struct device_node *parent)
+{
+ cpuintc_handle = of_node_to_fwnode(of_node);
+
+ irq_domain = irq_domain_create_linear(cpuintc_handle, EXCCODE_INT_NUM,
+ &loongarch_cpu_intc_irq_domain_ops, NULL);
+ if (!irq_domain)
+ panic("Failed to add irqdomain for loongarch CPU");
+
+ set_handle_irq(&handle_cpu_irq);
+
+ return 0;
+}
+IRQCHIP_DECLARE(cpu_intc, "loongson,cpu-interrupt-controller",
+ loongarch_cpu_irq_of_init);
+#endif
+
static int __init
liointc_parse_madt(union acpi_subtable_headers *header,
const unsigned long end)