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PCI: generic: Add pci_host_common_probe(), based on gen_pci_probe()

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Factor gen_pci_probe(), moving most of it into pci_host_common_probe()
where it can be shared with other drivers that have slightly different
config accessors.  No functional change intended.

[bhelgaas: split into separate patch, changelog]
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
David Daney 2016-03-11 15:25:13 -06:00 committed by Bjorn Helgaas
parent 7149b9fdaa
commit d51b371087
1 changed files with 17 additions and 8 deletions
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25
drivers/pci/host/pci-host-generic.c
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@ -182,19 +182,15 @@ static int gen_pci_parse_map_cfg_windows(struct gen_pci *pci)
return 0;
}
static int gen_pci_probe(struct platform_device *pdev)
static int pci_host_common_probe(struct platform_device *pdev,
struct gen_pci *pci)
{
int err;
const char *type;
const struct of_device_id *of_id;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct gen_pci *pci = devm_kzalloc(dev, sizeof(*pci), GFP_KERNEL);
struct pci_bus *bus, *child;
if (!pci)
return -ENOMEM;
type = of_get_property(np, "device_type", NULL);
if (!type || strcmp(type, "pci")) {
dev_err(dev, "invalid \"device_type\" %s\n", type);
@ -203,8 +199,6 @@ static int gen_pci_probe(struct platform_device *pdev)
of_pci_check_probe_only();
of_id = of_match_node(gen_pci_of_match, np);
pci->cfg.ops = (struct gen_pci_cfg_bus_ops *)of_id->data;
pci->host.dev.parent = dev;
INIT_LIST_HEAD(&pci->host.windows);
INIT_LIST_HEAD(&pci->resources);
@ -247,6 +241,21 @@ static int gen_pci_probe(struct platform_device *pdev)
return 0;
}
static int gen_pci_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct of_device_id *of_id;
struct gen_pci *pci = devm_kzalloc(dev, sizeof(*pci), GFP_KERNEL);
if (!pci)
return -ENOMEM;
of_id = of_match_node(gen_pci_of_match, dev->of_node);
pci->cfg.ops = (struct gen_pci_cfg_bus_ops *)of_id->data;
return pci_host_common_probe(pdev, pci);
}
static struct platform_driver gen_pci_driver = {
.driver = {
.name = "pci-host-generic",