ath10k: add the PCI PM core suspend/resume ops
authorRyan Hsu <ryanhsu@qti.qualcomm.com>
Thu, 31 Aug 2017 12:36:14 +0000 (15:36 +0300)
committerKalle Valo <kvalo@qca.qualcomm.com>
Thu, 31 Aug 2017 18:16:56 +0000 (21:16 +0300)
The actual PCI suspend/resume in ath10k has been handled in wow.c,
but in the case of the device doesn't support remote wakeup,
the .hif_suspend() and .hif_resume() will never be handled.

  ath10k_wow_op_suspend()
  {
if (WARN_ON(!test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
    ar->running_fw->fw_file.fw_features))) {
ret = 1;
goto exit;
}

....

ret = ath10k_hif_suspend(ar);
  }

So register the PCI PM core to support the suspend/resume if the device
doesn't support remote wakeup.

Signed-off-by: Ryan Hsu <ryanhsu@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
drivers/net/wireless/ath/ath10k/pci.c

index 0a5b88e..bc16339 100644 (file)
@@ -3396,11 +3396,53 @@ static void ath10k_pci_remove(struct pci_dev *pdev)
 
 MODULE_DEVICE_TABLE(pci, ath10k_pci_id_table);
 
+#ifdef CONFIG_PM
+
+static int ath10k_pci_pm_suspend(struct device *dev)
+{
+       struct ath10k *ar = dev_get_drvdata(dev);
+       int ret;
+
+       if (test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
+                    ar->running_fw->fw_file.fw_features))
+               return 0;
+
+       ret = ath10k_hif_suspend(ar);
+       if (ret)
+               ath10k_warn(ar, "failed to suspend hif: %d\n", ret);
+
+       return ret;
+}
+
+static int ath10k_pci_pm_resume(struct device *dev)
+{
+       struct ath10k *ar = dev_get_drvdata(dev);
+       int ret;
+
+       if (test_bit(ATH10K_FW_FEATURE_WOWLAN_SUPPORT,
+                    ar->running_fw->fw_file.fw_features))
+               return 0;
+
+       ret = ath10k_hif_resume(ar);
+       if (ret)
+               ath10k_warn(ar, "failed to resume hif: %d\n", ret);
+
+       return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(ath10k_pci_pm_ops,
+                        ath10k_pci_pm_suspend,
+                        ath10k_pci_pm_resume);
+#endif
+
 static struct pci_driver ath10k_pci_driver = {
        .name = "ath10k_pci",
        .id_table = ath10k_pci_id_table,
        .probe = ath10k_pci_probe,
        .remove = ath10k_pci_remove,
+#ifdef CONFIG_PM
+       .driver.pm = &ath10k_pci_pm_ops,
+#endif
 };
 
 static int __init ath10k_pci_init(void)