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PCI: generic: Convert to use generic config accessors

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Convert the generic host PCI driver to use the generic config access
functions.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Will Deacon <will.deacon@arm.com>
CC: linux-arm-kernel@lists.infradead.org
This commit is contained in:
Rob Herring 2015-01-09 20:34:46 -06:00 committed by Bjorn Helgaas
parent b98fa50847
commit 2118672886
1 changed files with 3 additions and 48 deletions
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51
drivers/pci/host/pci-host-generic.c
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@ -76,55 +76,9 @@ static struct gen_pci_cfg_bus_ops gen_pci_cfg_ecam_bus_ops = {
.map_bus = gen_pci_map_cfg_bus_ecam,
};
static int gen_pci_config_read(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 *val)
{
void __iomem *addr;
struct pci_sys_data *sys = bus->sysdata;
struct gen_pci *pci = sys->private_data;
addr = pci->cfg.ops->map_bus(bus, devfn, where);
switch (size) {
case 1:
*val = readb(addr);
break;
case 2:
*val = readw(addr);
break;
default:
*val = readl(addr);
}
return PCIBIOS_SUCCESSFUL;
}
static int gen_pci_config_write(struct pci_bus *bus, unsigned int devfn,
int where, int size, u32 val)
{
void __iomem *addr;
struct pci_sys_data *sys = bus->sysdata;
struct gen_pci *pci = sys->private_data;
addr = pci->cfg.ops->map_bus(bus, devfn, where);
switch (size) {
case 1:
writeb(val, addr);
break;
case 2:
writew(val, addr);
break;
default:
writel(val, addr);
}
return PCIBIOS_SUCCESSFUL;
}
static struct pci_ops gen_pci_ops = {
.read = gen_pci_config_read,
.write = gen_pci_config_write,
.read = pci_generic_config_read,
.write = pci_generic_config_write,
};
static const struct of_device_id gen_pci_of_match[] = {
@ -287,6 +241,7 @@ static int gen_pci_probe(struct platform_device *pdev)
of_id = of_match_node(gen_pci_of_match, np);
pci->cfg.ops = of_id->data;
gen_pci_ops.map_bus = pci->cfg.ops->map_bus;
pci->host.dev.parent = dev;
INIT_LIST_HEAD(&pci->host.windows);
INIT_LIST_HEAD(&pci->resources);