Port of a Linux commit 7e00dfd0fbbb2fc276592613f76ded0b9a139a04
The struct pcie_host_ops.readl_rc() and .writel_rc() function pointers
allow a driver to override the default DesignWare register accessors.
Make the signature of the override functions the same as the default
accessors. This makes the default dw_pcie_readl_rc() and the corresponding
override more structurally similar: both will compute the final register
address with "pp->dbi_base + reg". Previously dw_pcie_readl_rc() computed
the address and passed it to the override.
No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
drivers/pci/pcie-designware.c | 4 ++--
drivers/pci/pcie-designware.h | 5 ++---
2 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/pci/pcie-designware.c b/drivers/pci/pcie-designware.c
index fd529c114..4595167c4 100644
--- a/drivers/pci/pcie-designware.c
+++ b/drivers/pci/pcie-designware.c
@@ -145,7 +145,7 @@ int dw_pcie_cfg_write(void __iomem *addr, int size, u32 val)
static inline u32 dw_pcie_readl_rc(struct pcie_port *pp, u32 reg)
{
if (pp->ops->readl_rc)
- return pp->ops->readl_rc(pp, pp->dbi_base + reg);
+ return pp->ops->readl_rc(pp, reg);
return readl(pp->dbi_base + reg);
}
@@ -153,7 +153,7 @@ static inline u32 dw_pcie_readl_rc(struct pcie_port *pp, u32 reg)
static inline void dw_pcie_writel_rc(struct pcie_port *pp, u32 val, u32 reg)
{
if (pp->ops->writel_rc)
- pp->ops->writel_rc(pp, val, pp->dbi_base + reg);
+ pp->ops->writel_rc(pp, val, reg);
else
writel(val, pp->dbi_base + reg);
}
diff --git a/drivers/pci/pcie-designware.h b/drivers/pci/pcie-designware.h
index 62f04e69b..b7ce73718 100644
--- a/drivers/pci/pcie-designware.h
+++ b/drivers/pci/pcie-designware.h
@@ -47,9 +47,8 @@ struct pcie_port {
};
struct pcie_host_ops {
- u32 (*readl_rc)(struct pcie_port *pp, void __iomem *dbi_base);
- void (*writel_rc)(struct pcie_port *pp,
- u32 val, void __iomem *dbi_base);
+ u32 (*readl_rc)(struct pcie_port *pp, u32 reg);
+ void (*writel_rc)(struct pcie_port *pp, u32 val, u32 reg);
int (*rd_own_conf)(struct pcie_port *pp, int where, int size, u32 *val);
int (*wr_own_conf)(struct pcie_port *pp, int where, int size, u32 val);
int (*rd_other_conf)(struct pcie_port *pp, struct pci_bus *bus,
--
2.19.1
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