[PATCH v5 4/6] PCI: imx6: Don't poll LTSSM state of i.MX7D PCIe in PM operations
From: Richard Zhu <hongxing.zhu@nxp.com>
Date: 2025-09-02 08:02:58
Also in:
imx, linux-pci, lkml
Subsystem:
pci driver for imx6, pci native host bridge and endpoint drivers, pci subsystem, the rest · Maintainers:
Richard Zhu, Lucas Stach, Lorenzo Pieralisi, Krzysztof Wilczyński, Manivannan Sadhasivam, Bjorn Helgaas, Linus Torvalds
Add a quirk flag(QUIRK_NOL2POLL_IN_PM) for i.MX7D PCIe. Don't poll the LTSSM states after issue the PME_Turn_Off message. Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> --- drivers/pci/controller/dwc/pci-imx6.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 18b97bd0462b..a59b5282c3cc 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c@@ -1863,6 +1863,7 @@ static const struct imx_pcie_drvdata drvdata[] = { .mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE, .enable_ref_clk = imx7d_pcie_enable_ref_clk, .core_reset = imx7d_pcie_core_reset, + .quirk = QUIRK_NOL2POLL_IN_PM, }, [IMX8MQ] = { .variant = IMX8MQ,
--
2.37.1