diff options
| author | Jianmin Lv <lvjianmin@loongson.cn> | 2023-04-07 11:34:51 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-05-17 12:53:53 +0300 |
| commit | 6578ae84e9adbd6c8193e888b82a24317d9cf984 (patch) | |
| tree | 86c52b45c41856b0de9946fdac11511cf6cb089c /drivers/irqchip | |
| parent | fa29d577e2fc46842fe70b02747651ca3e5893b5 (diff) | |
| download | linux-6578ae84e9adbd6c8193e888b82a24317d9cf984.tar.xz | |
irqchip/loongson-eiointc: Fix registration of syscore_ops
[ Upstream commit bdd60211eebb43ba1c4c14704965f4d4b628b931 ]
When support suspend/resume for loongson-eiointc, the syscore_ops
is registered twice in dual-bridges machines where there are two
eiointc IRQ domains. Repeated registration of an same syscore_ops
broke syscore_ops_list. Also, cpuhp_setup_state_nocalls is only
needed to call for once. So the patch will corret them.
Fixes: a90335c2dfb4 ("irqchip/loongson-eiointc: Add suspend/resume support")
Cc: stable@vger.kernel.org
Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230407083453.6305-4-lvjianmin@loongson.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/irqchip')
| -rw-r--r-- | drivers/irqchip/irq-loongson-eiointc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/irqchip/irq-loongson-eiointc.c b/drivers/irqchip/irq-loongson-eiointc.c index 768ed36f5f66..ac04aeaa2d30 100644 --- a/drivers/irqchip/irq-loongson-eiointc.c +++ b/drivers/irqchip/irq-loongson-eiointc.c @@ -390,9 +390,11 @@ int __init eiointc_acpi_init(struct irq_domain *parent, parent_irq = irq_create_mapping(parent, acpi_eiointc->cascade); irq_set_chained_handler_and_data(parent_irq, eiointc_irq_dispatch, priv); - cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_LOONGARCH_STARTING, + if (nr_pics == 1) { + cpuhp_setup_state_nocalls(CPUHP_AP_IRQ_LOONGARCH_STARTING, "irqchip/loongarch/intc:starting", eiointc_router_init, NULL); + } if (cpu_has_flatmode) node = cpu_to_node(acpi_eiointc->node * CORES_PER_EIO_NODE); |