From: Pali Rohár <pali@xxxxxxxxxx> Disable link training circuit in driver unbind sequence. We want to leave link training in the same state as it was before the driver was probed. Signed-off-by: Pali Rohár <pali@xxxxxxxxxx> Signed-off-by: Marek Behún <kabel@xxxxxxxxxx> --- drivers/pci/controller/pci-aardvark.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c index 271ebecee965..e5c88f1c177b 100644 --- a/drivers/pci/controller/pci-aardvark.c +++ b/drivers/pci/controller/pci-aardvark.c @@ -1741,6 +1741,11 @@ static int advk_pcie_remove(struct platform_device *pdev) if (pcie->reset_gpio) gpiod_set_value_cansleep(pcie->reset_gpio, 1); + /* Disable link training */ + val = advk_readl(pcie, PCIE_CORE_CTRL0_REG); + val &= ~LINK_TRAINING_EN; + advk_writel(pcie, val, PCIE_CORE_CTRL0_REG); + /* Disable outbound address windows mapping */ for (i = 0; i < OB_WIN_COUNT; i++) advk_pcie_disable_ob_win(pcie, i); -- 2.32.0
