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path: root/drivers/pci/controller/dwc/pcie-kirin.c
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Diffstat (limited to 'drivers/pci/controller/dwc/pcie-kirin.c')
-rw-r--r--drivers/pci/controller/dwc/pcie-kirin.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
index d2970a009eb5..5352e0c3be82 100644
--- a/drivers/pci/controller/dwc/pcie-kirin.c
+++ b/drivers/pci/controller/dwc/pcie-kirin.c
@@ -430,6 +430,9 @@ static int kirin_pcie_host_init(struct pcie_port *pp)
{
kirin_pcie_establish_link(pp);
+ if (IS_ENABLED(CONFIG_PCI_MSI))
+ dw_pcie_msi_init(pp);
+
return 0;
}
@@ -445,9 +448,34 @@ static const struct dw_pcie_host_ops kirin_pcie_host_ops = {
.host_init = kirin_pcie_host_init,
};
+static int kirin_pcie_add_msi(struct dw_pcie *pci,
+ struct platform_device *pdev)
+{
+ int irq;
+
+ if (IS_ENABLED(CONFIG_PCI_MSI)) {
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(&pdev->dev,
+ "failed to get MSI IRQ (%d)\n", irq);
+ return irq;
+ }
+
+ pci->pp.msi_irq = irq;
+ }
+
+ return 0;
+}
+
static int __init kirin_add_pcie_port(struct dw_pcie *pci,
struct platform_device *pdev)
{
+ int ret;
+
+ ret = kirin_pcie_add_msi(pci, pdev);
+ if (ret)
+ return ret;
+
pci->pp.ops = &kirin_pcie_host_ops;
return dw_pcie_host_init(&pci->pp);