lkml.org 
[lkml]   [2022]   [Aug]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 5.10 346/545] PCI: tegra194: Fix link up retry sequence
    Date
    From: Vidya Sagar <vidyas@nvidia.com>

    [ Upstream commit e05fd6ae77c3e2cc0dba283005d24b6d56d2b1fa ]

    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: 56e15a238d92 ("PCI: tegra: Add Tegra194 PCIe support")
    Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
    Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    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 bcbd600116d7..1222f5749bc6 100644
    --- a/drivers/pci/controller/dwc/pcie-tegra194.c
    +++ b/drivers/pci/controller/dwc/pcie-tegra194.c
    @@ -963,7 +963,7 @@ static int tegra_pcie_dw_host_init(struct pcie_port *pp)
    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_prepare_host(pp);

    --
    2.35.1


    \
     
     \ /
      Last update: 2022-08-19 18:33    [W:3.168 / U:2.176 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site