| Message ID | 1728539269-1861-3-git-send-email-hongxing.zhu@nxp.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Krzysztof Wilczyński |
| Headers | show |
| Series | Bug fixes when generic suspend/resume functions are used | expand |
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index a52101bbecf4..f673443d4098 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -952,6 +952,7 @@ int dw_pcie_suspend_noirq(struct dw_pcie *pci) } } + dw_pcie_stop_link(pci); if (pci->pp.ops->deinit) pci->pp.ops->deinit(&pci->pp);
On i.MX8QM, PCIe link can't be re-established again in dw_pcie_resume_noirq(), if the LTSSM_EN bit is not cleared properly in dw_pcie_suspend_noirq(). Add dw_pcie_stop_link() into dw_pcie_suspend_noirq() to fix this issue and keep symmetric in suspend/resume function since there is dw_pcie_start_link() in dw_pcie_resume_noirq(). Fixes: 4774faf854f5 ("PCI: dwc: Implement generic suspend/resume functionality") Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- drivers/pci/controller/dwc/pcie-designware-host.c | 1 + 1 file changed, 1 insertion(+)