[PATCH V6 14/16] PCI: tegra194: Fix link up retry sequence

From: Vidya Sagar
Date: Thu Jul 21 2022 - 10:23:36 EST


Add the missing DLF capability offset while clearing
DL_FEATURE_EXCHANGE_EN bit during link up retry.

Fixes: 56e15a238d92 ("PCI: tegra: Add Tegra194 PCIe support")
Signed-off-by: Vidya Sagar <vidyas@xxxxxxxxxx>
---
V6:
* New addition in V6 based on Bjorn's review comment

drivers/pci/controller/dwc/pcie-tegra194.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index 39f7ae61fdc6..bac2e1ad0a29 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -967,7 +967,7 @@ static int tegra_pcie_dw_start_link(struct dw_pcie *pci)
offset = dw_pcie_find_ext_capability(pci, PCI_EXT_CAP_ID_DLF);
val = dw_pcie_readl_dbi(pci, offset + PCI_DLF_CAP);
val &= ~PCI_DLF_EXCHANGE_ENABLE;
- dw_pcie_writel_dbi(pci, offset, val);
+ dw_pcie_writel_dbi(pci, offset + PCI_DLF_CAP, val);

tegra_pcie_dw_host_init(pp);
dw_pcie_setup_rc(pp);
--
2.17.1