[PATCHv8 08/12] PCI: layerscape: Modify the MSIX to the doorbell mode

From: Zhiqiang Hou
Date: Fri Sep 18 2020 - 04:18:57 EST


From: Xiaowei Bao <xiaowei.bao@xxxxxxx>

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.

Signed-off-by: Xiaowei Bao <xiaowei.bao@xxxxxxx>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@xxxxxxx>
Reviewed-by: Andrew Murray <andrew.murray@xxxxxxx>
---
V8:
- No change.

drivers/pci/controller/dwc/pci-layerscape-ep.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c
index 9601f9c09cb1..bfab1c694f00 100644
--- a/drivers/pci/controller/dwc/pci-layerscape-ep.c
+++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c
@@ -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;
--
2.17.1