[PATCH v2 3/3] PCI: keystone: Allow AM654 PCIe Endpoint to raise MSI-X interrupt
From: Kishon Vijay Abraham I <hidden>
Date: 2020-02-25 08:13:04
Also in:
linux-pci, lkml
Subsystem:
pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers:
Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds
AM654 PCIe EP controller has MSI-X capability register and has the ability to raise MSI-X interrupt. Add support in pci-keystone.c for PCIe endpoint controller in AM654 to raise MSI-X interrupts. Signed-off-by: Kishon Vijay Abraham I <redacted> --- drivers/pci/controller/dwc/pci-keystone.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index c8c702c494a2..790679fdfa48 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c@@ -959,6 +959,9 @@ static int ks_pcie_am654_raise_irq(struct dw_pcie_ep *ep, u8 func_no, case PCI_EPC_IRQ_MSI: dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num); break; + case PCI_EPC_IRQ_MSIX: + dw_pcie_ep_raise_msix_irq(ep, func_no, interrupt_num); + break; default: dev_err(pci->dev, "UNKNOWN IRQ type\n"); return -EINVAL;
@@ -970,7 +973,7 @@ static int ks_pcie_am654_raise_irq(struct dw_pcie_ep *ep, u8 func_no, static const struct pci_epc_features ks_pcie_am654_epc_features = { .linkup_notifier = false, .msi_capable = true, - .msix_capable = false, + .msix_capable = true, .reserved_bar = 1 << BAR_0 | 1 << BAR_1, .bar_fixed_64bit = 1 << BAR_0, .bar_fixed_size[2] = SZ_1M,
--
2.17.1
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