diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 10 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_core.h | 10 | ||||
| -rw-r--r-- | drivers/usb/musb/musb_dsps.c | 3 |
3 files changed, 14 insertions, 9 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index c0ce09f8fdcd..b841ee0bff06 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1753,9 +1753,11 @@ static void musb_irq_work(struct work_struct *data) static void musb_recover_work(struct work_struct *data) { struct musb *musb = container_of(data, struct musb, recover_work.work); - int status; + int status, ret; - musb_platform_reset(musb); + ret = musb_platform_reset(musb); + if (ret) + return; usb_phy_vbus_off(musb->xceiv); usleep_range(100, 200); @@ -1764,8 +1766,8 @@ static void musb_recover_work(struct work_struct *data) usleep_range(100, 200); /* - * When a babble condition occurs, the musb controller removes the - * session bit and the endpoint config is lost. + * When a babble condition occurs, the musb controller + * removes the session bit and the endpoint config is lost. */ if (musb->dyn_fifo) status = ep_config_from_table(musb); diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 9241025f6965..414e57a984bb 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -192,7 +192,7 @@ struct musb_platform_ops { int (*set_mode)(struct musb *musb, u8 mode); void (*try_idle)(struct musb *musb, unsigned long timeout); - void (*reset)(struct musb *musb); + int (*reset)(struct musb *musb); int (*vbus_status)(struct musb *musb); void (*set_vbus)(struct musb *musb, int on); @@ -555,10 +555,12 @@ static inline void musb_platform_try_idle(struct musb *musb, musb->ops->try_idle(musb, timeout); } -static inline void musb_platform_reset(struct musb *musb) +static inline int musb_platform_reset(struct musb *musb) { - if (musb->ops->reset) - musb->ops->reset(musb); + if (!musb->ops->reset) + return -EINVAL; + + return musb->ops->reset(musb); } static inline int musb_platform_get_vbus_status(struct musb *musb) diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index b29f59f718bb..53a4351aef97 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -544,7 +544,7 @@ static int dsps_musb_set_mode(struct musb *musb, u8 mode) return 0; } -static void dsps_musb_reset(struct musb *musb) +static int dsps_musb_reset(struct musb *musb) { struct device *dev = musb->controller; struct dsps_glue *glue = dev_get_drvdata(dev->parent); @@ -556,6 +556,7 @@ static void dsps_musb_reset(struct musb *musb) usleep_range(100, 200); usb_phy_init(musb->xceiv); + return 0; } static struct musb_platform_ops dsps_ops = { |