On Loongson-3C6000 and higher systems with AVECINTC irqchip, there may
be multiple PCI segments, but only one PCH-MSI irq domain. In this case,
let get_pch_msi_handle() return the first domain handle.
Co-developed-by: Jianmin Lv <lvjianmin@xxxxxxxxxxx>
Signed-off-by: Jianmin Lv <lvjianmin@xxxxxxxxxxx>
Co-developed-by: Liupu Wang <wangliupu@xxxxxxxxxxx>
Signed-off-by: Liupu Wang <wangliupu@xxxxxxxxxxx>
Co-developed-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
Signed-off-by: Tianyang Zhang <zhangtianyang@xxxxxxxxxxx>
---
drivers/irqchip/irq-loongson-pch-msi.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/irqchip/irq-loongson-pch-msi.c b/drivers/irqchip/irq-loongson-pch-msi.c
index d43731878800..0dc14550791d 100644
--- a/drivers/irqchip/irq-loongson-pch-msi.c
+++ b/drivers/irqchip/irq-loongson-pch-msi.c
@@ -255,17 +255,17 @@ IRQCHIP_DECLARE(pch_msi, "loongson,pch-msi-1.0", pch_msi_of_init);
#ifdef CONFIG_ACPI
struct fwnode_handle *get_pch_msi_handle(int pci_segment)
{
- int i;
+ if (cpu_has_avecint)
+ return pch_msi_handle[0];
- for (i = 0; i < MAX_IO_PICS; i++) {
+ for (int i = 0; i < MAX_IO_PICS; i++) {
if (msi_group[i].pci_segment == pci_segment)
return pch_msi_handle[i];
}
- return NULL;
+ return pch_msi_handle[0];
}
-int __init pch_msi_acpi_init(struct irq_domain *parent,
- struct acpi_madt_msi_pic *acpi_pchmsi)
+int __init pch_msi_acpi_init(struct irq_domain *parent, struct acpi_madt_msi_pic *acpi_pchmsi)
{
int ret;
struct fwnode_handle *domain_handle;
--
2.20.1
