diff options
| -rw-r--r-- | drivers/pci/host/pcie-mediatek.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/pci/host/pcie-mediatek.c b/drivers/pci/host/pcie-mediatek.c index 01caa98d4171..c649ab4ab2c0 100644 --- a/drivers/pci/host/pcie-mediatek.c +++ b/drivers/pci/host/pcie-mediatek.c @@ -295,7 +295,8 @@ static int mtk_pcie_parse_port(struct mtk_pcie *pcie, return err; } - regs = platform_get_resource(pdev, IORESOURCE_MEM, slot + 1); + snprintf(name, sizeof(name), "port%d", slot); + regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); port->base = devm_ioremap_resource(dev, regs); if (IS_ERR(port->base)) { dev_err(dev, "failed to map port%d base\n", slot); @@ -336,12 +337,14 @@ static int mtk_pcie_subsys_powerup(struct mtk_pcie *pcie) struct resource *regs; int err; - /* get shared registers */ - regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); - pcie->base = devm_ioremap_resource(dev, regs); - if (IS_ERR(pcie->base)) { - dev_err(dev, "failed to map shared register\n"); - return PTR_ERR(pcie->base); + /* get shared registers, which are optional */ + regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "subsys"); + if (regs) { + pcie->base = devm_ioremap_resource(dev, regs); + if (IS_ERR(pcie->base)) { + dev_err(dev, "failed to map shared register\n"); + return PTR_ERR(pcie->base); + } } pcie->free_ck = devm_clk_get(dev, "free_ck"); |