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usb: gadget: pxa27x: fix suspend callback

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commit 391e6dcb37 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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Felipe Balbi
2015-11-18 17:06:00 -06:00
committed by Greg Kroah-Hartman
parent de04cf3c61
commit 21d6ff27bb
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/gadget/udc/pxa27x_udc.c
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@@ -2535,6 +2535,9 @@ 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;
}