diff options
| author | Gregory Herrero <gregory.herrero@intel.com> | 2015-01-09 15:39:02 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-01-13 00:34:23 +0300 |
| commit | 83d982234ee65900521e763161f409b29f89b8f6 (patch) | |
| tree | 70637ef3ebcb0d035c4fa45339010efe69ef6426 /drivers/usb/dwc2 | |
| parent | 48b20bcb3b2e9b15be1ebb9b574b003cffb033d5 (diff) | |
| download | linux-83d982234ee65900521e763161f409b29f89b8f6.tar.xz | |
usb: dwc2: gadget: add vbus_session support
Enable phy driver to report vbus session. This allows us to remove
D+ pullup when vbus is not present.
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index e3bb525ae54d..65ec0f2dfab1 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -3009,11 +3009,35 @@ static int s3c_hsotg_pullup(struct usb_gadget *gadget, int is_on) return 0; } +static int s3c_hsotg_vbus_session(struct usb_gadget *gadget, int is_active) +{ + struct dwc2_hsotg *hsotg = to_hsotg(gadget); + unsigned long flags; + + dev_dbg(hsotg->dev, "%s: is_active: %d\n", __func__, is_active); + spin_lock_irqsave(&hsotg->lock, flags); + + if (is_active) { + /* Kill any ep0 requests as controller will be reinitialized */ + kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET); + s3c_hsotg_core_init_disconnected(hsotg); + if (hsotg->enabled) + s3c_hsotg_core_connect(hsotg); + } else { + s3c_hsotg_core_disconnect(hsotg); + s3c_hsotg_disconnect(hsotg); + } + + spin_unlock_irqrestore(&hsotg->lock, flags); + return 0; +} + static const struct usb_gadget_ops s3c_hsotg_gadget_ops = { .get_frame = s3c_hsotg_gadget_getframe, .udc_start = s3c_hsotg_udc_start, .udc_stop = s3c_hsotg_udc_stop, .pullup = s3c_hsotg_pullup, + .vbus_session = s3c_hsotg_vbus_session, }; /** |