prevent system from entering s3 in gadget connected by using wakeup event way

Signed-off-by: Austin Zhang <austin.zhang@intel.com>
Signed-off-by: Yong Wang <yong.y.wang@intel.com>

diff --git a/drivers/usb/gadget/langwell_udc.c b/drivers/usb/gadget/langwell_udc.c
index 12f6fc8..6f22766 100644 (file)
--- a/drivers/usb/gadget/langwell_udc.c
+++ b/drivers/usb/gadget/langwell_udc.c
@@ -3338,7 +3338,11 @@ static void gadget_release(struct device *_dev)
 
        complete(dev->done);
 
+#ifdef CONFIG_HAS_WAKELOCK
        wake_lock_destroy(&dev->wake_lock);
+#else
+       device_set_wakeup_enable(&dev->pdev->dev, 0);
+#endif
 
        dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__);
        kfree(dev);
@@ -3715,8 +3719,12 @@ static int langwell_udc_probe(struct pci_dev *pdev,
        }
 #endif
 
+#ifdef CONFIG_HAS_WAKELOCK
        wake_lock_init(&dev->wake_lock, WAKE_LOCK_SUSPEND,
                        pci_name(dev->pdev));
+#else
+       device_init_wakeup(&dev->pdev->dev, 1);
+#endif
 
        /* done */
        dev_info(&dev->pdev->dev, "%s\n", driver_desc);
@@ -3970,7 +3978,11 @@ static int intel_mid_start_peripheral(struct intel_mid_otg_xceiv *iotg)
 
        dev_dbg(&dev->pdev->dev, "---> %s()\n", __func__);
 
+#ifdef CONFIG_HAS_WAKELOCK
        wake_lock(&dev->wake_lock);
+#else
+       pm_stay_awake(&dev->pdev->dev);
+#endif
        pm_runtime_get_sync(&dev->pdev->dev);
 
        /* exit PHY low power suspend */
@@ -4082,7 +4094,11 @@ static int intel_mid_stop_peripheral(struct intel_mid_otg_xceiv *iotg)
        }
 
        pm_runtime_put(&dev->pdev->dev);
+#ifdef CONFIG_HAS_WAKELOCK
        wake_unlock(&dev->wake_lock);
+#else
+       pm_relax(&dev->pdev->dev);
+#endif
 
        dev_dbg(&dev->pdev->dev, "<--- %s()\n", __func__);
        return 0;