diff options
| author | Liu Peibao <liupeibao@loongson.cn> | 2022-11-14 19:38:23 +0800 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-11-26 11:54:11 +0000 |
| commit | 855d4ca4bdb366aab3d43408b74e02ab629d1d55 (patch) | |
| tree | ad7a828a1222da5bf18a264478213f2663f17dcd /drivers/irqchip | |
| parent | 247f34f7b80357943234f93f247a1ae6b6c3a740 (diff) | |
| download | linux-855d4ca4bdb366aab3d43408b74e02ab629d1d55.tar.bz2 | |
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.c | 19 |
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) |