Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Zhiqiang Hou <Zhiqiang.Hou@nxp.com>
To:     linux-pci@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linuxppc-dev@lists.ozlabs.org, robh+dt@kernel.org,
        bhelgaas@google.com, lorenzo.pieralisi@arm.com,
        shawnguo@kernel.org, leoyang.li@nxp.com, kishon@ti.com,
        gustavo.pimentel@synopsys.com, roy.zang@nxp.com,
        jingoohan1@gmail.com, andrew.murray@arm.com
Cc:     mingkai.hu@nxp.com, minghuan.Lian@nxp.com,
        Xiaowei Bao <xiaowei.bao@nxp.com>,
        Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Subject: [PATCHv7 08/12] PCI: layerscape: Modify the MSIX to the doorbell mode
Date:   Tue, 11 Aug 2020 17:54:37 +0800
Message-Id: <20200811095441.7636-9-Zhiqiang.Hou@nxp.com>
In-Reply-To: <20200811095441.7636-1-Zhiqiang.Hou@nxp.com>
References: <20200811095441.7636-1-Zhiqiang.Hou@nxp.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Xiaowei Bao <xiaowei.bao@nxp.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@nxp.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.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