diff options
Diffstat (limited to 'drivers/usb/otg/colibri-otg.c')
| -rw-r--r-- | drivers/usb/otg/colibri-otg.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/usb/otg/colibri-otg.c b/drivers/usb/otg/colibri-otg.c index edcac80c9d79..54d792536363 100644 --- a/drivers/usb/otg/colibri-otg.c +++ b/drivers/usb/otg/colibri-otg.c @@ -70,6 +70,13 @@ void tegra_stop_host(struct colibri_otg_data *tegra) } } +static void tegra_otg_notify_event(struct otg_transceiver *otg, + enum usb_xceiv_events event) +{ + otg->last_event = event; + atomic_notifier_call_chain(&otg->notifier, event, NULL); +} + static void irq_work(struct work_struct *work) { struct colibri_otg_data *tegra = @@ -98,14 +105,21 @@ static void irq_work(struct work_struct *work) tegra_state_name(from), tegra_state_name(to)); if (to == OTG_STATE_B_PERIPHERAL) { - if (from == OTG_STATE_A_HOST) + if (from == OTG_STATE_A_HOST) { tegra_stop_host(tegra); - if (otg->gadget) + tegra_otg_notify_event(otg, USB_EVENT_NONE); + } + if (otg->gadget) { usb_gadget_vbus_connect(otg->gadget); + tegra_otg_notify_event(otg, USB_EVENT_VBUS); + } } else if (to == OTG_STATE_A_HOST) { - if (otg->gadget && (from == OTG_STATE_B_PERIPHERAL)) + if (otg->gadget && (from == OTG_STATE_B_PERIPHERAL)) { usb_gadget_vbus_disconnect(otg->gadget); + tegra_otg_notify_event(otg, USB_EVENT_NONE); + } tegra_start_host(tegra); + tegra_otg_notify_event(otg, USB_EVENT_ID); } } } |