diff options
| author | Peter Chen <peter.chen@freescale.com> | 2013-08-14 12:44:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-14 12:37:20 -0700 |
| commit | a107f8c505cd8606ae192d24c70b380e980fbe67 (patch) | |
| tree | c1451c9051588fe93537c83c034d62def233ed8f /drivers/usb/chipidea/udc.c | |
| parent | cbec6bd55a45fa88218ec5ea5ae91f9b96d158d0 (diff) | |
usb: chipidea: add vbus interrupt handler
We add vbus interrupt handler at ci_otg_work, it uses OTGSC_BSV(at otgsc)
to know it is connect or disconnet event.
Meanwhile, we introduce two flags id_event and b_sess_valid_event to
indicate it is an id interrupt or a vbus interrupt.
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea/udc.c')
| -rw-r--r-- | drivers/usb/chipidea/udc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 24a100d751ca..c70ce3891d35 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -85,8 +85,10 @@ static int hw_device_state(struct ci_hdrc *ci, u32 dma) /* interrupt, error, port change, reset, sleep/suspend */ hw_write(ci, OP_USBINTR, ~0, USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI); + hw_write(ci, OP_USBCMD, USBCMD_RS, USBCMD_RS); } else { hw_write(ci, OP_USBINTR, ~0, 0); + hw_write(ci, OP_USBCMD, USBCMD_RS, 0); } return 0; } @@ -1460,6 +1462,7 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active) pm_runtime_get_sync(&_gadget->dev); hw_device_reset(ci, USBMODE_CM_DC); hw_device_state(ci, ci->ep0out->qh.dma); + dev_dbg(ci->dev, "Connected to host\n"); } else { hw_device_state(ci, 0); if (ci->platdata->notify_event) @@ -1467,6 +1470,7 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active) CI_HDRC_CONTROLLER_STOPPED_EVENT); _gadget_stop_activity(&ci->gadget); pm_runtime_put_sync(&_gadget->dev); + dev_dbg(ci->dev, "Disconnected from host\n"); } } @@ -1822,6 +1826,9 @@ static int udc_start(struct ci_hdrc *ci) pm_runtime_no_callbacks(&ci->gadget.dev); pm_runtime_enable(&ci->gadget.dev); + /* Update ci->vbus_active */ + ci_handle_vbus_change(ci); + return retval; remove_trans: |