On Thursday, March 06, 2014 3:06 PM, Tanmay Inamdar wrote: > Hi Tanmay Inamdar, I added some minor comments. :-) > This patch adds the AppliedMicro X-Gene SOC PCIe controller driver. > X-Gene PCIe controller supports maxmum upto 8 lanes and GEN3 speed. Would you fix the followings? s/maxmum/maximum s/upto/up to > X-Gene SOC supports maximum 5 PCIe ports. > > Signed-off-by: Tanmay Inamdar <tinamdar@xxxxxxx> > --- > drivers/pci/host/Kconfig | 10 + > drivers/pci/host/Makefile | 1 + > drivers/pci/host/pci-xgene.c | 739 ++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 750 insertions(+) > create mode 100644 drivers/pci/host/pci-xgene.c [.....] > --- /dev/null > +++ b/drivers/pci/host/pci-xgene.c [.....] > + > +static int xgene_pcie_parse_map_dma_ranges(struct xgene_pcie_port *port) > +{ > + struct device_node *np = port->node; > + struct of_pci_range range; > + struct of_pci_range_parser parser; > + struct device *dev = port->dev; > + u8 ib_reg_mask = 0; > + > + if (pci_dma_range_parser_init(&parser, np)) { > + dev_err(dev, "missing dma-ranges property\n"); > + return -EINVAL; > + } > + > + /* Get the dma-ranges from DT */ > + for_each_of_pci_range(&parser, &range) { > + u64 end = range.cpu_addr + range.size - 1; > + dev_dbg(port->dev, "0x%08x 0x%016llx..0x%016llx -> 0x%016llx\n", > + range.flags, range.cpu_addr, end, range.pci_addr); > + xgene_pcie_setup_ib_reg(port, &range, &ib_reg_mask); > + } > + return 0; > +} > + > +static int __init xgene_pcie_probe_bridge(struct platform_device *pdev) Please, remove '__init' marker in order to fix section mismatch warning. > +{ > + struct device_node *np = of_node_get(pdev->dev.of_node); > + struct xgene_pcie_port *port; > + struct pci_host_bridge *bridge; > + resource_size_t lastbus; > + u32 lanes = 0, speed = 0; > + u64 cfg_addr = 0; > + int ret; > + > + port = devm_kzalloc(&pdev->dev, sizeof(*port), GFP_KERNEL); > + if (!port) > + return -ENOMEM; > + port->node = np; > + port->dev = &pdev->dev; > + > + ret = xgene_pcie_map_reg(port, pdev, &cfg_addr); > + if (ret) > + return ret; > + > + ret = xgene_pcie_init_port(port); > + if (ret) > + return ret; > + xgene_pcie_program_core(port->csr_base); > + xgene_pcie_setup_root_complex(port); > + > + bridge = of_create_pci_host_bridge(&pdev->dev, &xgene_pcie_ops, port); > + if (IS_ERR_OR_NULL(bridge)) > + return PTR_ERR(bridge); > + > + ret = xgene_pcie_map_ranges(port, bridge, cfg_addr); > + if (ret) > + return ret; > + > + ret = xgene_pcie_parse_map_dma_ranges(port); > + if (ret) > + return ret; > + > + xgene_pcie_poll_linkup(port, &lanes, &speed); > + if (!port->link_up) > + dev_info(port->dev, "(rc) link down\n"); > + else > + dev_info(port->dev, "(rc) x%d gen-%d link up\n", > + lanes, speed + 1); > + platform_set_drvdata(pdev, port); > + lastbus = pci_rescan_bus(bridge->bus); > + pci_bus_update_busn_res_end(bridge->bus, lastbus); > + return 0; > +} > + > +static const struct of_device_id xgene_pcie_match_table[] __initconst = { Please, remove '__initconst' marker in order to fix section mismatch warning. > + {.compatible = "apm,xgene-pcie",}, > + {}, > +}; > + > +static struct platform_driver xgene_pcie_driver = { > + .driver = { > + .name = "xgene-pcie", > + .owner = THIS_MODULE, > + .of_match_table = of_match_ptr(xgene_pcie_match_table), > + }, Please fix this indent style, as below: + }, See you later. :-) Best regards, Jingoo Han > + .probe = xgene_pcie_probe_bridge, > +}; > +module_platform_driver(xgene_pcie_driver); > + > +MODULE_AUTHOR("Tanmay Inamdar <tinamdar@xxxxxxx>"); > +MODULE_DESCRIPTION("APM X-Gene PCIe driver"); > +MODULE_LICENSE("GPL v2"); > -- > 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html