PCI: layerscape: Remove redundant struct ls_pcie.dbi

Remove the struct ls_pcie.dbi member, which is a duplicate of the generic
pp.dbi_base member.  No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

diff --git a/drivers/pci/host/pci-layerscape.c b/drivers/pci/host/pci-layerscape.c
index ebed415..bdafe55 100644 (file)
--- a/drivers/pci/host/pci-layerscape.c
+++ b/drivers/pci/host/pci-layerscape.c
@@ -45,7 +45,6 @@ struct ls_pcie_drvdata {
 };
 
 struct ls_pcie {
-       void __iomem *dbi;
        void __iomem *lut;
        struct regmap *scfg;
        struct pcie_port pp;
@@ -59,7 +58,7 @@ static bool ls_pcie_is_bridge(struct ls_pcie *pcie)
 {
        u32 header_type;
 
-       header_type = ioread8(pcie->dbi + PCI_HEADER_TYPE);
+       header_type = ioread8(pcie->pp.dbi_base + PCI_HEADER_TYPE);
        header_type &= 0x7f;
 
        return header_type == PCI_HEADER_TYPE_BRIDGE;
@@ -68,13 +67,13 @@ static bool ls_pcie_is_bridge(struct ls_pcie *pcie)
 /* Clear multi-function bit */
 static void ls_pcie_clear_multifunction(struct ls_pcie *pcie)
 {
-       iowrite8(PCI_HEADER_TYPE_BRIDGE, pcie->dbi + PCI_HEADER_TYPE);
+       iowrite8(PCI_HEADER_TYPE_BRIDGE, pcie->pp.dbi_base + PCI_HEADER_TYPE);
 }
 
 /* Fix class value */
 static void ls_pcie_fix_class(struct ls_pcie *pcie)
 {
-       iowrite16(PCI_CLASS_BRIDGE_PCI, pcie->dbi + PCI_CLASS_DEVICE);
+       iowrite16(PCI_CLASS_BRIDGE_PCI, pcie->pp.dbi_base + PCI_CLASS_DEVICE);
 }
 
 /* Drop MSG TLP except for Vendor MSG */
@@ -82,9 +81,9 @@ static void ls_pcie_drop_msg_tlp(struct ls_pcie *pcie)
 {
        u32 val;
 
-       val = ioread32(pcie->dbi + PCIE_STRFMR1);
+       val = ioread32(pcie->pp.dbi_base + PCIE_STRFMR1);
        val &= 0xDFFFFFFF;
-       iowrite32(val, pcie->dbi + PCIE_STRFMR1);
+       iowrite32(val, pcie->pp.dbi_base + PCIE_STRFMR1);
 }
 
 static int ls1021_pcie_link_up(struct pcie_port *pp)
@@ -149,11 +148,11 @@ static void ls_pcie_host_init(struct pcie_port *pp)
 {
        struct ls_pcie *pcie = to_ls_pcie(pp);
 
-       iowrite32(1, pcie->dbi + PCIE_DBI_RO_WR_EN);
+       iowrite32(1, pcie->pp.dbi_base + PCIE_DBI_RO_WR_EN);
        ls_pcie_fix_class(pcie);
        ls_pcie_clear_multifunction(pcie);
        ls_pcie_drop_msg_tlp(pcie);
-       iowrite32(0, pcie->dbi + PCIE_DBI_RO_WR_EN);
+       iowrite32(0, pcie->pp.dbi_base + PCIE_DBI_RO_WR_EN);
 }
 
 static int ls_pcie_msi_host_init(struct pcie_port *pp,
@@ -222,7 +221,6 @@ static int __init ls_add_pcie_port(struct pcie_port *pp,
        struct ls_pcie *pcie = to_ls_pcie(pp);
 
        pp->dev = dev;
-       pp->dbi_base = pcie->dbi;
        pp->ops = pcie->drvdata->ops;
 
        ret = dw_pcie_host_init(pp);
@@ -251,14 +249,14 @@ static int __init ls_pcie_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        dbi_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
-       pcie->dbi = devm_ioremap_resource(dev, dbi_base);
-       if (IS_ERR(pcie->dbi)) {
+       pcie->pp.dbi_base = devm_ioremap_resource(dev, dbi_base);
+       if (IS_ERR(pcie->pp.dbi_base)) {
                dev_err(dev, "missing *regs* space\n");
-               return PTR_ERR(pcie->dbi);
+               return PTR_ERR(pcie->pp.dbi_base);
        }
 
        pcie->drvdata = match->data;
-       pcie->lut = pcie->dbi + pcie->drvdata->lut_offset;
+       pcie->lut = pcie->pp.dbi_base + pcie->drvdata->lut_offset;
 
        if (!ls_pcie_is_bridge(pcie))
                return -ENODEV;