The iMSI-RX module of DW PCIe controller provide sets of MSI_CTRL_INT_i_* registers, and each set can handle 32 MSI interrupts. However, since we didn't specify the total number of supported interrupts for the fu740 PCIe controller, the driver previously only enable 1 set of MSI_CTRL_INT_i_* registers. This patch sets the supported number of MSI vectors to enables all the MSI_CTRL_INT_i_* registers on the fu740 PCIe core. Signed-off-by: Yong-Xuan Wang <yongxuan.wang@xxxxxxxxxx> Reviewed-by: Serge Semin <fancer.lancer@xxxxxxxxx> --- Changelog v2: - recast the subject and the commit message --- drivers/pci/controller/dwc/pcie-fu740.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/controller/dwc/pcie-fu740.c b/drivers/pci/controller/dwc/pcie-fu740.c index 0c90583c078b..1e9b44b8bba4 100644 --- a/drivers/pci/controller/dwc/pcie-fu740.c +++ b/drivers/pci/controller/dwc/pcie-fu740.c @@ -299,6 +299,7 @@ static int fu740_pcie_probe(struct platform_device *pdev) pci->dev = dev; pci->ops = &dw_pcie_ops; pci->pp.ops = &fu740_pcie_host_ops; + pci->pp.num_vectors = MAX_MSI_IRQS; /* SiFive specific region: mgmt */ afp->mgmt_base = devm_platform_ioremap_resource_byname(pdev, "mgmt"); -- 2.17.1
