From: Nagarjuna Kristam Date: Thu, 11 Sep 2025 09:30:22 +0000 (+0200) Subject: PCI: tegra194: Fix duplicate PLL disable in pex_ep_event_pex_rst_assert() X-Git-Tag: v6.18-rc1~60^2~3^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4f152338e384a3a47dd61909e1457539fa93f5a4;p=thirdparty%2Fkernel%2Fstable.git PCI: tegra194: Fix duplicate PLL disable in pex_ep_event_pex_rst_assert() 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 [cassel: improve commit log] Signed-off-by: Niklas Cassel Link: https://patch.msgid.link/20250911093021.1454385-2-cassel@kernel.org [mani: added Fixes tag] Signed-off-by: Manivannan Sadhasivam --- diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c index 4f26086f25da..0c0734aa14b6 100644 --- a/drivers/pci/controller/dwc/pcie-tegra194.c +++ b/drivers/pci/controller/dwc/pcie-tegra194.c @@ -1722,9 +1722,9 @@ 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");