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PCI: dwc: meson: Use pci_ops for root config space accessors 

Now that DWC drivers can setup their own pci_ops for the root and child
buses, convert the Amlogic meson driver to use the standard pci_ops for
root bus config accesses.

Link: https://lore.kernel.org/r/20200821035420.380495-9-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Yue Wang <yue.wang@Amlogic.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: linux-amlogic@lists.infradead.org
This commit is contained in:
Rob Herring 2020-08-20 21:53:48 -06:00 committed by Lorenzo Pieralisi
parent 692ccce7f0
commit e0ceb8f90b
1 changed files with 10 additions and 13 deletions
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23
drivers/pci/controller/dwc/pci-meson.c
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@ -383,13 +383,12 @@ static void meson_pcie_enable_interrupts(struct meson_pcie *mp)
dw_pcie_msi_init(&mp->pci.pp);
}
static int meson_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
u32 *val)
static int meson_pcie_rd_own_conf(struct pci_bus *bus, u32 devfn,
int where, int size, u32 *val)
{
struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
int ret;
ret = dw_pcie_read(pci->dbi_base + where, size, val);
ret = pci_generic_config_read(bus, devfn, where, size, val);
if (ret != PCIBIOS_SUCCESSFUL)
return ret;
@ -410,13 +409,11 @@ static int meson_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
return PCIBIOS_SUCCESSFUL;
}
static int meson_pcie_wr_own_conf(struct pcie_port *pp, int where,
int size, u32 val)
{
struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
return dw_pcie_write(pci->dbi_base + where, size, val);
}
static struct pci_ops meson_pci_ops = {
.map_bus = dw_pcie_own_conf_map_bus,
.read = meson_pcie_rd_own_conf,
.write = pci_generic_config_write,
};
static int meson_pcie_link_up(struct dw_pcie *pci)
{
@ -463,6 +460,8 @@ static int meson_pcie_host_init(struct pcie_port *pp)
struct meson_pcie *mp = to_meson_pcie(pci);
int ret;
pp->bridge->ops = &meson_pci_ops;
ret = meson_pcie_establish_link(mp);
if (ret)
return ret;
@ -473,8 +472,6 @@ static int meson_pcie_host_init(struct pcie_port *pp)
}
static const struct dw_pcie_host_ops meson_pcie_host_ops = {
.rd_own_conf = meson_pcie_rd_own_conf,
.wr_own_conf = meson_pcie_wr_own_conf,
.host_init = meson_pcie_host_init,
};