If the parent 'ranges' property in DT correctly describes the address
translation, the cpu_addr_fixup() callback is not needed. Print a warning
message to inform users to correct their DT files.
Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
change from v9 to v10
- new patch
---
drivers/pci/controller/dwc/pcie-designware.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
index 7061a7ec08cb2..3ab85dde22ce4 100644
--- a/drivers/pci/controller/dwc/pcie-designware.c
+++ b/drivers/pci/controller/dwc/pcie-designware.c
@@ -1125,6 +1125,8 @@ int dw_pcie_init_parent_bus_offset(struct dw_pcie *pci, const char *reg_name,
fixup = pci->ops->cpu_addr_fixup;
if (fixup) {
+ dev_warn_once(pci->dev, "cpu_addr_fixup() usage detected. Please fix DT!\n");
+
fixup_addr = fixup(pci, cpu_phy_addr);
if (reg_addr == fixup_addr) {
dev_info(dev, "%#010llx %s reg[%d] == %#010llx; %ps is redundant\n",
--
2.34.1
