[PATCH v2 04/26] PCI: keystone: Perform host initialization in a single function

[Kishon Vijay Abraham I]

No functional change. Instead of having two functions
ks_pcie_add_pcie_port and ks_pcie_dw_host_init for initializing host,
have a single function to perform all the host initialization.

Signed-off-by: Kishon Vijay Abraham I <kis...@ti.com>
---
 drivers/pci/controller/dwc/pci-keystone.c | 63 +++++++++--------------
 1 file changed, 23 insertions(+), 40 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-keystone.c 
b/drivers/pci/controller/dwc/pci-keystone.c
index e50f8773e768..566718ea7ebf 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -487,45 +487,6 @@ static int ks_pcie_start_link(struct dw_pcie *pci)
        return 0;
 }
 
-/**
- * ks_pcie_dw_host_init() - initialize host for v3_65 dw hardware
- *
- * Ioremap the register resources, initialize legacy irq domain
- * and call dw_pcie_v3_65_host_init() API to initialize the Keystone
- * PCI host controller.
- */
-static int __init ks_pcie_dw_host_init(struct keystone_pcie *ks_pcie)
-{
-       struct dw_pcie *pci = ks_pcie->pci;
-       struct pcie_port *pp = &pci->pp;
-       struct device *dev = pci->dev;
-       struct platform_device *pdev = to_platform_device(dev);
-       struct resource *res;
-
-       /* Index 0 is the config reg. space address */
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       pci->dbi_base = devm_pci_remap_cfg_resource(dev, res);
-       if (IS_ERR(pci->dbi_base))
-               return PTR_ERR(pci->dbi_base);
-
-       /*
-        * We set these same and is used in pcie rd/wr_other_conf
-        * functions
-        */
-       pp->va_cfg0_base = pci->dbi_base + SPACE0_REMOTE_CFG_OFFSET;
-       pp->va_cfg1_base = pp->va_cfg0_base;
-
-       /* Index 1 is the application reg. space address */
-       res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-       ks_pcie->va_app_base = devm_ioremap_resource(dev, res);
-       if (IS_ERR(ks_pcie->va_app_base))
-               return PTR_ERR(ks_pcie->va_app_base);
-
-       ks_pcie->app = *res;
-
-       return dw_pcie_host_init(pp);
-}
-
 static void ks_pcie_quirk(struct pci_dev *dev)
 {
        struct pci_bus *bus = dev->bus;
@@ -843,10 +804,32 @@ static int __init ks_pcie_add_pcie_port(struct 
keystone_pcie *ks_pcie,
        struct dw_pcie *pci = ks_pcie->pci;
        struct pcie_port *pp = &pci->pp;
        struct device *dev = &pdev->dev;
+       struct resource *res;
        int ret;
 
+       /* Index 0 is the config reg. space address */
+       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       pci->dbi_base = devm_pci_remap_cfg_resource(dev, res);
+       if (IS_ERR(pci->dbi_base))
+               return PTR_ERR(pci->dbi_base);
+
+       /*
+        * We set these same and is used in pcie rd/wr_other_conf
+        * functions
+        */
+       pp->va_cfg0_base = pci->dbi_base + SPACE0_REMOTE_CFG_OFFSET;
+       pp->va_cfg1_base = pp->va_cfg0_base;
+
+       /* Index 1 is the application reg. space address */
+       res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+       ks_pcie->va_app_base = devm_ioremap_resource(dev, res);
+       if (IS_ERR(ks_pcie->va_app_base))
+               return PTR_ERR(ks_pcie->va_app_base);
+
+       ks_pcie->app = *res;
+
        pp->ops = &ks_pcie_host_ops;
-       ret = ks_pcie_dw_host_init(ks_pcie);
+       ret = dw_pcie_host_init(pp);
        if (ret) {
                dev_err(dev, "failed to initialize host\n");
                return ret;
-- 
2.17.1