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Message-Id: <20200811095441.7636-9-Zhiqiang.Hou@nxp.com>
Date: Tue, 11 Aug 2020 17:54:37 +0800
From: Zhiqiang Hou <Zhiqiang.Hou@....com>
To: linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linuxppc-dev@...ts.ozlabs.org, robh+dt@...nel.org,
bhelgaas@...gle.com, lorenzo.pieralisi@....com,
shawnguo@...nel.org, leoyang.li@....com, kishon@...com,
gustavo.pimentel@...opsys.com, roy.zang@....com,
jingoohan1@...il.com, andrew.murray@....com
Cc: mingkai.hu@....com, minghuan.Lian@....com,
Xiaowei Bao <xiaowei.bao@....com>,
Hou Zhiqiang <Zhiqiang.Hou@....com>
Subject: [PATCHv7 08/12] PCI: layerscape: Modify the MSIX to the doorbell mode
From: Xiaowei Bao <xiaowei.bao@....com>
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@....com>
Reviewed-by: Andrew Murray <andrew.murray@....com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
---
V7:
- Rebase the patch without functionality 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
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