Commit e05fd6ae authored by Vidya Sagar's avatar Vidya Sagar Committed by Bjorn Helgaas
Browse files

PCI: tegra194: Fix link up retry sequence 

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

Link: https://lore.kernel.org/r/20220721142052.25971-15-vidyas@nvidia.com


Fixes: 56e15a23 ("PCI: tegra: Add Tegra194 PCIe support")
Signed-off-by: default avatarVidya Sagar <vidyas@nvidia.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent bb617cbd

drivers/pci/controller/dwc/pcie-tegra194.c

+1 −1
Original line number Diff line number Diff line
@@ -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);