[ERD][NEUS7920-261] [9610] usb: notify: add wake_lock

Change-Id: I7d2995efa208a8e00501d16fba2faa24f1c48758
Signed-off-by: SEO HOYOUNG <hy50.seo@samsung.com>

diff --git a/drivers/usb/notify/usb_notifier.c b/drivers/usb/notify/usb_notifier.c
index 7fb716749f53fe951236eb2e17041f4011ad58d0..481ef03597679f31a324b8c5e66cab101b30245a 100644 (file)
--- a/drivers/usb/notify/usb_notifier.c
+++ b/drivers/usb/notify/usb_notifier.c
@@ -54,6 +54,8 @@
 #include <linux/workqueue.h>
 
 #if defined(CONFIG_USB_OTG_SW_SWITCH)
+#include <linux/wakelock.h>
+
 #define OTG_DISABLED_DELAY_TIME  (300000*HZ/1000) /*5 min*/
 #endif
 
@@ -84,6 +86,8 @@ struct usb_notifier_platform_data {
 #if defined(CONFIG_USB_OTG_SW_SWITCH)
        struct delayed_work usbid_work;
        struct timer_list otg_disabled_timer;
+
+       struct wake_lock        switch_wakelock;
 #endif
 };
 
@@ -967,6 +971,9 @@ static void otg_disabled_func(unsigned long data)
        if (!o_notify->muic_hw_switch)
                o_notify->muic_sw_switch = SW_SWITCH_OFF;
        cancel_delayed_work(&pdata->usbid_work);
+
+       if (wake_lock_active(&pdata->switch_wakelock))
+               wake_unlock(&pdata->switch_wakelock);
 }
 
 static void otg_usbid_work(struct work_struct *w)
@@ -992,6 +999,8 @@ static void otg_usbid_work(struct work_struct *w)
                if (ret < 0)
                        pr_err("%s: Fail to execute property\n", __func__);
 
+               if (wake_lock_active(&pdata->switch_wakelock))
+                       wake_unlock(&pdata->switch_wakelock);
                return;
        }
 
@@ -1039,6 +1048,7 @@ static ssize_t otg_host_mode_enable_store(struct device *dev,
                pr_info("%s: otg switch enabled\n", __func__);
                o_notify->muic_sw_switch = SW_SWITCH_ON;
 
+               wake_lock(&pdata->switch_wakelock);
                init_timer(&pdata->otg_disabled_timer);
                pdata->otg_disabled_timer.expires = jiffies + OTG_DISABLED_DELAY_TIME;
                pdata->otg_disabled_timer.function = otg_disabled_func;
@@ -1145,6 +1155,7 @@ static int usb_notifier_probe(struct platform_device *pdev)
        device_create_file(&pdev->dev, &dev_attr_host_mode);
        INIT_DELAYED_WORK(&pdata->usbid_work, otg_usbid_work);
 
+       wake_lock_init(&pdata->switch_wakelock, WAKE_LOCK_SUSPEND, "otg_sw_switch");
 #endif
        dev_info(&pdev->dev, "usb notifier probe\n");
        return 0;
@@ -1169,6 +1180,7 @@ static int usb_notifier_remove(struct platform_device *pdev)
 #endif
 #if defined(CONFIG_VBUS_NOTIFIER)
        vbus_notifier_unregister(&pdata->vbus_nb);
+       wake_lock_destroy(&pdata->switch_wakelock);
 #endif
 #endif
        return 0;