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usb: dwc2: gadget: add vbus_session support

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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>
This commit is contained in:
Gregory Herrero 2015-01-09 13:39:02 +01:00 committed by Felipe Balbi
parent 48b20bcb3b
commit 83d982234e
1 changed files with 24 additions and 0 deletions
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24
drivers/usb/dwc2/gadget.c
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@ -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,
};
/**