From 40f67fb2c384fe12741aa35010d62bfe8c98286c Mon Sep 17 00:00:00 2001 From: Kishon Vijay Abraham I Date: Wed, 15 Feb 2017 18:48:13 +0530 Subject: [PATCH] PCI: dwc: designware: Get device pointer at the start of dw_pcie_host_init() No functional change. Get device pointer at the beginning of dw_pcie_host_init() instead of getting it all over dw_pcie_host_init(). This is in preparation for splitting struct pcie_port into host and core structures (once split pcie_port will not have device pointer). Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Bjorn Helgaas --- drivers/pci/dwc/pcie-designware.c | 33 +++++++++++++++++---------------- 1 file changed, 17 insertions(+), 16 deletions(-) diff --git a/drivers/pci/dwc/pcie-designware.c b/drivers/pci/dwc/pcie-designware.c index de143ea..6e95291 100644 --- a/drivers/pci/dwc/pcie-designware.c +++ b/drivers/pci/dwc/pcie-designware.c @@ -446,8 +446,9 @@ static u8 dw_pcie_iatu_unroll_enabled(struct pcie_port *pp) int dw_pcie_host_init(struct pcie_port *pp) { - struct device_node *np = pp->dev->of_node; - struct platform_device *pdev = to_platform_device(pp->dev); + struct device *dev = pp->dev; + struct device_node *np = dev->of_node; + struct platform_device *pdev = to_platform_device(dev); struct pci_bus *bus, *child; struct resource *cfg_res; int i, ret; @@ -461,14 +462,14 @@ int dw_pcie_host_init(struct pcie_port *pp) pp->cfg0_base = cfg_res->start; pp->cfg1_base = cfg_res->start + pp->cfg0_size; } else if (!pp->va_cfg0_base) { - dev_err(pp->dev, "missing *config* reg space\n"); + dev_err(dev, "missing *config* reg space\n"); } ret = of_pci_get_host_bridge_resources(np, 0, 0xff, &res, &pp->io_base); if (ret) return ret; - ret = devm_request_pci_bus_resources(&pdev->dev, &res); + ret = devm_request_pci_bus_resources(dev, &res); if (ret) goto error; @@ -478,7 +479,7 @@ int dw_pcie_host_init(struct pcie_port *pp) case IORESOURCE_IO: ret = pci_remap_iospace(win->res, pp->io_base); if (ret) { - dev_warn(pp->dev, "error %d: failed to map resource %pR\n", + dev_warn(dev, "error %d: failed to map resource %pR\n", ret, win->res); resource_list_destroy_entry(win); } else { @@ -508,10 +509,10 @@ int dw_pcie_host_init(struct pcie_port *pp) } if (!pp->dbi_base) { - pp->dbi_base = devm_ioremap(pp->dev, pp->cfg->start, + pp->dbi_base = devm_ioremap(dev, pp->cfg->start, resource_size(pp->cfg)); if (!pp->dbi_base) { - dev_err(pp->dev, "error with ioremap\n"); + dev_err(dev, "error with ioremap\n"); ret = -ENOMEM; goto error; } @@ -520,20 +521,20 @@ int dw_pcie_host_init(struct pcie_port *pp) pp->mem_base = pp->mem->start; if (!pp->va_cfg0_base) { - pp->va_cfg0_base = devm_ioremap(pp->dev, pp->cfg0_base, + pp->va_cfg0_base = devm_ioremap(dev, pp->cfg0_base, pp->cfg0_size); if (!pp->va_cfg0_base) { - dev_err(pp->dev, "error with ioremap in function\n"); + dev_err(dev, "error with ioremap in function\n"); ret = -ENOMEM; goto error; } } if (!pp->va_cfg1_base) { - pp->va_cfg1_base = devm_ioremap(pp->dev, pp->cfg1_base, + pp->va_cfg1_base = devm_ioremap(dev, pp->cfg1_base, pp->cfg1_size); if (!pp->va_cfg1_base) { - dev_err(pp->dev, "error with ioremap\n"); + dev_err(dev, "error with ioremap\n"); ret = -ENOMEM; goto error; } @@ -549,11 +550,11 @@ int dw_pcie_host_init(struct pcie_port *pp) if (IS_ENABLED(CONFIG_PCI_MSI)) { if (!pp->ops->msi_host_init) { - pp->irq_domain = irq_domain_add_linear(pp->dev->of_node, + pp->irq_domain = irq_domain_add_linear(dev->of_node, MAX_MSI_IRQS, &msi_domain_ops, &dw_pcie_msi_chip); if (!pp->irq_domain) { - dev_err(pp->dev, "irq domain init failed\n"); + dev_err(dev, "irq domain init failed\n"); ret = -ENXIO; goto error; } @@ -572,12 +573,12 @@ int dw_pcie_host_init(struct pcie_port *pp) pp->root_bus_nr = pp->busn->start; if (IS_ENABLED(CONFIG_PCI_MSI)) { - bus = pci_scan_root_bus_msi(pp->dev, pp->root_bus_nr, + bus = pci_scan_root_bus_msi(dev, pp->root_bus_nr, &dw_pcie_ops, pp, &res, &dw_pcie_msi_chip); - dw_pcie_msi_chip.dev = pp->dev; + dw_pcie_msi_chip.dev = dev; } else - bus = pci_scan_root_bus(pp->dev, pp->root_bus_nr, &dw_pcie_ops, + bus = pci_scan_root_bus(dev, pp->root_bus_nr, &dw_pcie_ops, pp, &res); if (!bus) { ret = -ENOMEM; -- 2.7.4