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usb: gadget: pxa27x: fix suspend callback 

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().

Cc: <stable@vger.kernel.org> # v3.10+
Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2015-11-18 17:06:00 -06:00
parent 7fe9a937d5
commit 391e6dcb37
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/gadget/udc/pxa27x_udc.c
View File

@ -2536,6 +2536,9 @@ 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;
}