From: Vidya Sagar vidyas@nvidia.com
commit c4bf1f25c6c187864681d5ad4dd1fa92f62d5d32 upstream.
Commit 275e88b06a27 ("PCI: tegra: Fix host link initialization") broke host initialization during resume as it misses out calling the API dw_pcie_setup_rc() which is required for host and MSI initialization.
Link: https://lore.kernel.org/r/20210504172157.29712-1-vidyas@nvidia.com Fixes: 275e88b06a27 ("PCI: tegra: Fix host link initialization") Tested-by: Jon Hunter jonathanh@nvidia.com Signed-off-by: Vidya Sagar vidyas@nvidia.com Signed-off-by: Lorenzo Pieralisi lorenzo.pieralisi@arm.com Signed-off-by: Bjorn Helgaas bhelgaas@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/pci/controller/dwc/pcie-tegra194.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -2214,6 +2214,8 @@ static int tegra_pcie_dw_resume_noirq(st goto fail_host_init; }
+ dw_pcie_setup_rc(&pcie->pci.pp); + ret = tegra_pcie_dw_start_link(&pcie->pci); if (ret < 0) goto fail_host_init;