diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2011-04-28 16:41:14 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-04-29 17:24:34 -0700 |
| commit | bc57381e634782009b1cb2e86b18013699ada576 (patch) | |
| tree | 2ff4b5937d810ef04aa1960745f06c4e0c99f939 | |
| parent | 5ea68d541df200d10a373c06f945f98225c2486b (diff) | |
| download | blackbird-op-linux-bc57381e634782009b1cb2e86b18013699ada576.tar.gz blackbird-op-linux-bc57381e634782009b1cb2e86b18013699ada576.zip | |
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>
| -rw-r--r-- | drivers/usb/renesas_usbhs/common.c | 9 | ||||
| -rw-r--r-- | drivers/usb/renesas_usbhs/common.h | 3 | ||||
| -rw-r--r-- | include/linux/usb/renesas_usbhs.h | 7 |
3 files changed, 14 insertions, 5 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 */ diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h index f3b907d26082..0157eb805cf6 100644 --- a/drivers/usb/renesas_usbhs/common.h +++ b/drivers/usb/renesas_usbhs/common.h @@ -177,7 +177,7 @@ struct usbhs_priv { struct renesas_usbhs_platform_callback *pfunc; struct renesas_usbhs_driver_param *dparam; - struct work_struct notify_hotplug_work; + struct delayed_work notify_hotplug_work; struct platform_device *pdev; spinlock_t lock; @@ -200,6 +200,7 @@ u16 usbhs_read(struct usbhs_priv *priv, u32 reg); void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data); void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data); +int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev); /* * sysconfig */ diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h index 66bbdd12d153..3a7f1d982dd6 100644 --- a/include/linux/usb/renesas_usbhs.h +++ b/include/linux/usb/renesas_usbhs.h @@ -103,6 +103,13 @@ struct renesas_usbhs_driver_param { * for BUSWAIT :: BWAIT * */ int buswait_bwait; + + /* + * option: + * + * delay time from notify_hotplug callback + */ + int detection_delay; }; /* |
