| Message ID | 1452882140-19213-1-git-send-email-luis.henriques@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index cdf4d678be96..a63dee15bdc7 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -2558,6 +2558,9 @@ static int pxa_udc_suspend(struct platform_device *_dev, pm_message_t state) udc->pullup_resume = udc->pullup_on; dplus_pullup(udc, 0); + if (udc->driver) + udc->driver->disconnect(&udc->gadget); + return 0; }
This is a note to let you know that I have just added a patch titled usb: gadget: pxa27x: fix suspend callback to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue This patch is scheduled to be released in version 3.16.7-ckt23. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.16.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Luis ---8<------------------------------------------------------------ From d712aa56effe8c17621e7624e1ad2e9d932aa6bd Mon Sep 17 00:00:00 2001 From: Felipe Balbi <balbi@ti.com> Date: Wed, 18 Nov 2015 17:06:00 -0600 Subject: usb: gadget: pxa27x: fix suspend callback commit 391e6dcb37857d5659b53def2f41e2f56850d33c upstream. pxa27x disconnects pullups on suspend but doesn't notify the gadget driver about it, so gadget driver can't disable the endpoints it was using. This causes problems on resume because gadget core will think endpoints are still enabled and just ignore the following usb_ep_enable(). Fix this problem by calling gadget_driver->disconnect(). Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Felipe Balbi <balbi@ti.com> [ luis: backported to 3.16: - file rename: drivers/usb/gadget/udc/pxa27x_udc.c -> drivers/usb/gadget/pxa27x_udc.c ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/usb/gadget/pxa27x_udc.c | 3 +++ 1 file changed, 3 insertions(+)