[irqchip:,irq/irqchip-next] irqchip: loongarch-cpu: add DT support
Commit Message
The following commit has been merged into the irq/irqchip-next branch of irqchip:
Commit-ID: 855d4ca4bdb366aab3d43408b74e02ab629d1d55
Gitweb: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/855d4ca4bdb366aab3d43408b74e02ab629d1d55
Author: Liu Peibao <liupeibao@loongson.cn>
AuthorDate: Mon, 14 Nov 2022 19:38:23 +08:00
Committer: Marc Zyngier <maz@kernel.org>
CommitterDate: Sat, 26 Nov 2022 11:54:11
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
---
drivers/irqchip/irq-loongarch-cpu.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
@@ -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)