diff options
| author | Gabriele Paoloni <gabriele.paoloni@huawei.com> | 2015-10-08 14:27:48 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-11-02 14:48:45 -0600 |
| commit | 4c45852f494dab827291c656ee9e12f3f4ee64d6 (patch) | |
| tree | 9cd03214cccebdd4cfcb72411d26b2d8b1c99245 /drivers/pci/host/pci-keystone-dw.c | |
| parent | c003ca99632e1783466f459033874a0e1e31457b (diff) | |
PCI: designware: Simplify dw_pcie_cfg_read/write() interfaces
Callers of dw_pcie_cfg_read() and dw_pcie_cfg_write() previously had to
split the address into "addr" and "where". The callees assumed "addr" was
32-bit aligned (with zeros in the low two bits) and they used only the low
two bits of "where".
Accept the entire address in "addr" and drop the now-redundant "where"
argument. As an example, this replaces this:
int dw_pcie_cfg_read(void __iomem *addr, int where, int size, u32 *val)
*val = readb(addr + (where & 1));
with this:
int dw_pcie_cfg_read(void __iomem *addr, int size, u32 *val)
*val = readb(addr):
[bhelgaas: changelog, split access size change to separate patch]
Signed-off-by: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/host/pci-keystone-dw.c')
| -rw-r--r-- | drivers/pci/host/pci-keystone-dw.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/host/pci-keystone-dw.c b/drivers/pci/host/pci-keystone-dw.c index 3cf55cdb7f87..0146b4121d49 100644 --- a/drivers/pci/host/pci-keystone-dw.c +++ b/drivers/pci/host/pci-keystone-dw.c @@ -398,7 +398,7 @@ int ks_dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus, addr = ks_pcie_cfg_setup(ks_pcie, bus_num, devfn); - return dw_pcie_cfg_read(addr + (where & ~0x3), where, size, val); + return dw_pcie_cfg_read(addr + where, size, val); } int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus, @@ -410,7 +410,7 @@ int ks_dw_pcie_wr_other_conf(struct pcie_port *pp, struct pci_bus *bus, addr = ks_pcie_cfg_setup(ks_pcie, bus_num, devfn); - return dw_pcie_cfg_write(addr + (where & ~0x3), where, size, val); + return dw_pcie_cfg_write(addr + where, size, val); } /** |