diff options
Diffstat (limited to 'drivers/pci/dwc/pci-layerscape.c')
| -rw-r--r-- | drivers/pci/dwc/pci-layerscape.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/pci/dwc/pci-layerscape.c b/drivers/pci/dwc/pci-layerscape.c index fd861289ad8b..7581490f007c 100644 --- a/drivers/pci/dwc/pci-layerscape.c +++ b/drivers/pci/dwc/pci-layerscape.c @@ -108,31 +108,35 @@ static int ls1021_pcie_link_up(struct dw_pcie *pci) return 1; } -static void ls1021_pcie_host_init(struct pcie_port *pp) +static int ls1021_pcie_host_init(struct pcie_port *pp) { struct dw_pcie *pci = to_dw_pcie_from_pp(pp); struct ls_pcie *pcie = to_ls_pcie(pci); struct device *dev = pci->dev; u32 index[2]; + int ret; pcie->scfg = syscon_regmap_lookup_by_phandle(dev->of_node, "fsl,pcie-scfg"); if (IS_ERR(pcie->scfg)) { + ret = PTR_ERR(pcie->scfg); dev_err(dev, "No syscfg phandle specified\n"); pcie->scfg = NULL; - return; + return ret; } if (of_property_read_u32_array(dev->of_node, "fsl,pcie-scfg", index, 2)) { pcie->scfg = NULL; - return; + return -EINVAL; } pcie->index = index[1]; dw_pcie_setup_rc(pp); ls_pcie_drop_msg_tlp(pcie); + + return 0; } static int ls_pcie_link_up(struct dw_pcie *pci) @@ -150,7 +154,7 @@ static int ls_pcie_link_up(struct dw_pcie *pci) return 1; } -static void ls_pcie_host_init(struct pcie_port *pp) +static int ls_pcie_host_init(struct pcie_port *pp) { struct dw_pcie *pci = to_dw_pcie_from_pp(pp); struct ls_pcie *pcie = to_ls_pcie(pci); @@ -160,6 +164,8 @@ static void ls_pcie_host_init(struct pcie_port *pp) ls_pcie_clear_multifunction(pcie); ls_pcie_drop_msg_tlp(pcie); iowrite32(0, pci->dbi_base + PCIE_DBI_RO_WR_EN); + + return 0; } static int ls_pcie_msi_host_init(struct pcie_port *pp, |