commit: 6d258a4c42089229b855fd706622029decf316d6 From: Felipe Balbi <[email protected]> Date: Thu, 15 Mar 2012 16:37:18 +0200 Subject: usb: gadget: udc-core: stop UDC on device-initiated disconnect
When we want to do device-initiated disconnect, let's make sure we stop the UDC in order to e.g. allow lower power states to be achieved by turning off unnecessary clocks and/or stoping PHYs. When reconnecting, call ->udc_start() again to make sure UDC is reinitialized. Cc: [email protected] Signed-off-by: Felipe Balbi <[email protected]> --- drivers/usb/gadget/udc-core.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index 56da49f..c261887 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -411,8 +411,12 @@ static ssize_t usb_udc_softconn_store(struct device *dev, struct usb_udc *udc = container_of(dev, struct usb_udc, dev); if (sysfs_streq(buf, "connect")) { + if (udc_is_newstyle(udc)) + usb_gadget_udc_start(udc->gadget, udc->driver); usb_gadget_connect(udc->gadget); } else if (sysfs_streq(buf, "disconnect")) { + if (udc_is_newstyle(udc)) + usb_gadget_udc_stop(udc->gadget, udc->driver); usb_gadget_disconnect(udc->gadget); } else { dev_err(dev, "unsupported command '%s'\n", buf); -- 1.7.3.4 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
