[PATCH v3 13/16] PCI: dwc: spacemit-k1: Use cached PCIe capability offset

[Hans Zhang]

Because .init runs before core caching, we call dw_pcie_get_pcie_cap()
inside k1_pcie_disable_aspm_l1() to get the capability base, then add
PCI_EXP_LNKCAP. Hardware is already enabled at this point.

Signed-off-by: Hans Zhang <18255117159 at 163.com>
---
In pcie-spacemit-k1, the call chain is:

  static const struct dw_pcie_host_ops k1_pcie_host_ops = {
    .init = k1_pcie_init,
  };
  k1_pcie_init()
    -> k1_pcie_disable_aspm_l1()
      -> dw_pcie_find_capability()
---
 drivers/pci/controller/dwc/pcie-spacemit-k1.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-spacemit-k1.c b/drivers/pci/controller/dwc/pcie-spacemit-k1.c
index 04241df8fd59..3e741324f44a 100644
--- a/drivers/pci/controller/dwc/pcie-spacemit-k1.c
+++ b/drivers/pci/controller/dwc/pcie-spacemit-k1.c
@@ -116,7 +116,7 @@ static void k1_pcie_disable_aspm_l1(struct k1_pcie *k1)
 	u8 offset;
 	u32 val;
 
-	offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);
+	offset = dw_pcie_get_pcie_cap(pci);
 	offset += PCI_EXP_LNKCAP;
 
 	dw_pcie_dbi_ro_wr_en(pci);
-- 
2.34.1