6.1-stable review patch. If anyone has any objections, please let me know.
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From: Nagarjuna Kristam nkristam@nvidia.com
[ Upstream commit 4f152338e384a3a47dd61909e1457539fa93f5a4 ]
During PERST# assertion tegra_pcie_bpmp_set_pll_state() is currently called twice.
pex_ep_event_pex_rst_assert() should do the opposite of pex_ep_event_pex_rst_deassert(), so it is obvious that the duplicate tegra_pcie_bpmp_set_pll_state() is a mistake, and that the duplicate tegra_pcie_bpmp_set_pll_state() call should instead be a call to tegra_pcie_bpmp_set_ctrl_state().
With this, the uninitialization sequence also matches that of tegra_pcie_unconfig_controller().
Fixes: a54e19073718 ("PCI: tegra194: Add Tegra234 PCIe support") Signed-off-by: Nagarjuna Kristam nkristam@nvidia.com [cassel: improve commit log] Signed-off-by: Niklas Cassel cassel@kernel.org Link: https://patch.msgid.link/20250911093021.1454385-2-cassel@kernel.org [mani: added Fixes tag] Signed-off-by: Manivannan Sadhasivam mani@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/controller/dwc/pcie-tegra194.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index 0839454fe4994..5100d2a53b8ab 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -1720,9 +1720,9 @@ static void pex_ep_event_pex_rst_assert(struct tegra_pcie_dw *pcie) ret); }
- ret = tegra_pcie_bpmp_set_pll_state(pcie, false); + ret = tegra_pcie_bpmp_set_ctrl_state(pcie, false); if (ret) - dev_err(pcie->dev, "Failed to turn off UPHY: %d\n", ret); + dev_err(pcie->dev, "Failed to disable controller: %d\n", ret);
pcie->ep_state = EP_STATE_DISABLED; dev_dbg(pcie->dev, "Uninitialization of endpoint is completed\n");