PCI: rockchip: Fix IO outbound ATU register number

[platform/kernel/linux-starfive.git] / drivers / pci / controller / pcie-rockchip-host.c

diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c
index d9b63bf..94af6f5 100644 (file)
--- a/drivers/pci/controller/pcie-rockchip-host.c
+++ b/drivers/pci/controller/pcie-rockchip-host.c
@@ -834,10 +834,12 @@ static int rockchip_pcie_cfg_atu(struct rockchip_pcie *rockchip)
        if (!entry)
                return -ENODEV;
 
+       /* store the register number offset to program RC io outbound ATU */
+       offset = size >> 20;
+
        size = resource_size(entry->res);
        pci_addr = entry->res->start - entry->offset;
 
-       offset = size >> 20;
        for (reg_no = 0; reg_no < (size >> 20); reg_no++) {
                err = rockchip_pcie_prog_ob_atu(rockchip,
                                                reg_no + 1 + offset,