Commit e64844b6 authored by Xiaowei Bao's avatar Xiaowei Bao Committed by Lorenzo Pieralisi
Browse files

PCI: layerscape: Modify the MSIX to the doorbell mode 

dw_pcie_ep_raise_msix_irq was never called in the exisitng driver
before, because the ls1046a platform don't support the MSIX feature
and msix_capable was always set to false.
Now that add the ls1088a platform with MSIX support, use the doorbell
method to support the MSIX feature.

Link: https://lore.kernel.org/r/20200918080024.13639-9-Zhiqiang.Hou@nxp.com


Signed-off-by: default avatarXiaowei Bao <xiaowei.bao@nxp.com>
Signed-off-by: default avatarHou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: default avatarLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: default avatarAndrew Murray <andrew.murray@arm.com>
parent cc255eb0

drivers/pci/controller/dwc/pci-layerscape-ep.c

+2 −1
Original line number Diff line number Diff line
@@ -79,7 +79,8 @@ static int ls_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no, 
	case PCI_EPC_IRQ_MSI:

		return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num);

	case PCI_EPC_IRQ_MSIX:

		return dw_pcie_ep_raise_msix_irq(ep, func_no, interrupt_num);

		return dw_pcie_ep_raise_msix_irq_doorbell(ep, func_no,

							  interrupt_num);

	default:

		dev_err(pci->dev, "UNKNOWN IRQ type\n");

		return -EINVAL;