Revert "cardreader/rtsx_pcr.c: use generic power management"

This reverts commit 6bf23661d4.

0-day reported build problems with it.

Reported-by: kernel test robot <lkp@intel.com>
Cc: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/misc/cardreader/rtsx_pcr.c

@@ -1604,9 +1604,10 @@ static void rtsx_pci_remove(struct pci_dev *pcidev)
 		pci_name(pcidev), (int)pcidev->vendor, (int)pcidev->device);
 }
 
-static int __maybe_unused rtsx_pci_suspend(struct device *dev_d)
+#ifdef CONFIG_PM
+
+static int rtsx_pci_suspend(struct pci_dev *pcidev, pm_message_t state)
 {
-	struct pci_dev *pcidev = to_pci_dev(dev_d);
 	struct pcr_handle *handle;
 	struct rtsx_pcr *pcr;
 
@@ -1622,15 +1623,17 @@ static int __maybe_unused rtsx_pci_suspend(struct device *dev_d)
 
 	rtsx_pci_power_off(pcr, HOST_ENTER_S3);
 
-	device_wakeup_disable(dev_d);
+	pci_save_state(pcidev);
+	pci_enable_wake(pcidev, pci_choose_state(pcidev, state), 0);
+	pci_disable_device(pcidev);
+	pci_set_power_state(pcidev, pci_choose_state(pcidev, state));
 
 	mutex_unlock(&pcr->pcr_mutex);
 	return 0;
 }
 
-static int __maybe_unused rtsx_pci_resume(struct device *dev_d)
+static int rtsx_pci_resume(struct pci_dev *pcidev)
 {
-	struct pci_dev *pcidev = to_pci_dev(dev_d);
 	struct pcr_handle *handle;
 	struct rtsx_pcr *pcr;
 	int ret = 0;
@@ -1642,6 +1645,11 @@ static int __maybe_unused rtsx_pci_resume(struct device *dev_d)
 
 	mutex_lock(&pcr->pcr_mutex);
 
+	pci_set_power_state(pcidev, PCI_D0);
+	pci_restore_state(pcidev);
+	ret = pci_enable_device(pcidev);
+	if (ret)
+		goto out;
 	pci_set_master(pcidev);
 
 	ret = rtsx_pci_write_register(pcr, HOST_SLEEP_STATE, 0x03, 0x00);
@@ -1659,8 +1667,6 @@ out:
 	return ret;
 }
 
-#ifdef CONFIG_PM
-
 static void rtsx_pci_shutdown(struct pci_dev *pcidev)
 {
 	struct pcr_handle *handle;
@@ -1680,18 +1686,19 @@ static void rtsx_pci_shutdown(struct pci_dev *pcidev)
 
 #else /* CONFIG_PM */
 
+#define rtsx_pci_suspend NULL
+#define rtsx_pci_resume NULL
 #define rtsx_pci_shutdown NULL
 
 #endif /* CONFIG_PM */
 
-static SIMPLE_DEV_PM_OPS(rtsx_pci_pm_ops, rtsx_pci_suspend, rtsx_pci_resume);
-
 static struct pci_driver rtsx_pci_driver = {
 	.name = DRV_NAME_RTSX_PCI,
 	.id_table = rtsx_pci_ids,
 	.probe = rtsx_pci_probe,
 	.remove = rtsx_pci_remove,
-	.driver.pm = &rtsx_pci_pm_ops,
+	.suspend = rtsx_pci_suspend,
+	.resume = rtsx_pci_resume,
 	.shutdown = rtsx_pci_shutdown,
 };
 module_pci_driver(rtsx_pci_driver);