usb: renesas_usbhs: use delayed_work instead of work_struct

This delay is used to overjump debounce.

And, this patch also move usbhsc_drvcllbck_notify_hotplug to global,
because it will be called from other files.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index db13cef9effe..9a75a45687bb 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -178,7 +178,7 @@ static void usbhsc_notify_hotplug(struct work_struct *work)
 {
         struct usbhs_priv *priv = container_of(work,
                                                struct usbhs_priv,
-                                               notify_hotplug_work);
+                                               notify_hotplug_work.work);
         struct platform_device *pdev = usbhs_priv_to_pdev(priv);
         struct usbhs_mod *mod = usbhs_mod_get_current(priv);
         int id;
@@ -224,16 +224,17 @@ static void usbhsc_notify_hotplug(struct work_struct *work)
         }
 }
 
-static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
+int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
 {
         struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
+        int delay = usbhs_get_dparam(priv, detection_delay);
 
         /*
          * This functions will be called in interrupt.
          * To make sure safety context,
          * use workqueue for usbhs_notify_hotplug
          */
-        schedule_work(&priv->notify_hotplug_work);
+        schedule_delayed_work(&priv->notify_hotplug_work, delay);
         return 0;
 }
 
@@ -300,7 +301,7 @@ static int __devinit usbhs_probe(struct platform_device *pdev)
          */
         priv->irq       = irq;
         priv->pdev      = pdev;
-        INIT_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug);
+        INIT_DELAYED_WORK(&priv->notify_hotplug_work, usbhsc_notify_hotplug);
         spin_lock_init(usbhs_priv_to_lock(priv));
 
         /* call pipe and module init */