PCI: layerscape: Use of_device_get_match_data() to simplify probe

The only way to call ls_pcie_probe() is to match an entry in
ls_pcie_of_match[], so match cannot be NULL.

Use of_device_get_match_data() to retrieve the drvdata pointer.  No
functional change intended.

Based-on-suggestion-from: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2017-01-31 16:36:11 -06:00
parent 7ce7d89f48
commit 6dc2c04fd9

View File

@ -239,23 +239,18 @@ static int __init ls_add_pcie_port(struct ls_pcie *pcie)
static int __init ls_pcie_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct of_device_id *match;
struct ls_pcie *pcie;
struct pcie_port *pp;
struct resource *dbi_base;
int ret;
match = of_match_device(ls_pcie_of_match, dev);
if (!match)
return -ENODEV;
pcie = devm_kzalloc(dev, sizeof(*pcie), GFP_KERNEL);
if (!pcie)
return -ENOMEM;
pp = &pcie->pp;
pp->dev = dev;
pcie->drvdata = match->data;
pcie->drvdata = of_device_get_match_data(dev);
pp->ops = pcie->drvdata->ops;
dbi_base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");