| Message ID | 20241022084348.4571-1-jinjian.song@fibocom.com (mailing list archive) |
|---|---|
| State | New |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [net-next,v2] net: wwan: t7xx: reset device if suspend fails | expand |
diff --git a/drivers/net/wwan/t7xx/t7xx_pci.c b/drivers/net/wwan/t7xx/t7xx_pci.c index e556e5bd49ab..4f89a353588b 100644 --- a/drivers/net/wwan/t7xx/t7xx_pci.c +++ b/drivers/net/wwan/t7xx/t7xx_pci.c @@ -427,6 +427,10 @@ static int __t7xx_pci_pm_suspend(struct pci_dev *pdev) iowrite32(T7XX_L1_BIT(0), IREG_BASE(t7xx_dev) + ENABLE_ASPM_LOWPWR); atomic_set(&t7xx_dev->md_pm_state, MTK_PM_RESUMED); t7xx_pcie_mac_set_int(t7xx_dev, SAP_RGU_INT); + if (pci_channel_offline(pdev)) { + dev_err(&pdev->dev, "Device offline, reset to recover\n"); + t7xx_reset_device(t7xx_dev, PLDR); + } return ret; }
If driver fails to set the device to suspend, it means that the device is abnormal. In this case, reset the device to recover when PCIe device is offline. Signed-off-by: Jinjian Song <jinjian.song@fibocom.com> --- V2: * Add judgment, reset when device is offline --- drivers/net/wwan/t7xx/t7xx_pci.c | 4 ++++ 1 file changed, 4 insertions(+)