linux-kernel - [PATCHv7 03/12] PCI: designware-ep: Move the function of getting MSI capability forward

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Date:   Tue, 11 Aug 2020 17:54:32 +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 03/12] PCI: designware-ep: Move the function of getting MSI capability forward

From: Xiaowei Bao <xiaowei.bao@....com>

Move the function of getting MSI capability to the front of init
function, because the init function of the EP platform driver will use
the return value by the function of getting MSI capability.

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/pcie-designware-ep.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index e76b504ed465..56bd1cd71f16 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -574,10 +574,6 @@ int dw_pcie_ep_init_complete(struct dw_pcie_ep *ep)
 		return -EIO;
 	}
 
-	ep->msi_cap = dw_pcie_find_capability(pci, PCI_CAP_ID_MSI);
-
-	ep->msix_cap = dw_pcie_find_capability(pci, PCI_CAP_ID_MSIX);
-
 	offset = dw_pcie_ep_find_ext_capability(pci, PCI_EXT_CAP_ID_REBAR);
 	if (offset) {
 		reg = dw_pcie_readl_dbi(pci, offset + PCI_REBAR_CTRL);
@@ -664,6 +660,10 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep)
 	if (ret < 0)
 		epc->max_functions = 1;
 
+	ep->msi_cap = dw_pcie_find_capability(pci, PCI_CAP_ID_MSI);
+
+	ep->msix_cap = dw_pcie_find_capability(pci, PCI_CAP_ID_MSIX);
+
 	if (ep->ops->ep_init)
 		ep->ops->ep_init(ep);
 
-- 
2.17.1