From 252455c40316009cc791f00338ee2e367d2d2739 Mon Sep 17 00:00:00 2001 From: Suresh Gupta Date: Fri, 21 Mar 2014 16:38:12 +0530 Subject: [PATCH] usb: gadget: fsl driver pullup fix This fix the fsl usb gadget driver in a way that the usb device will be only "pulled up" on requests only when vbus is powered Signed-off-by: Suresh Gupta Signed-off-by: Felipe Balbi --- drivers/usb/gadget/fsl_udc_core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index dcd0b07..a2f26cd 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -1219,6 +1219,10 @@ static int fsl_pullup(struct usb_gadget *gadget, int is_on) struct fsl_udc *udc; udc = container_of(gadget, struct fsl_udc, gadget); + + if (!udc->vbus_active) + return -EOPNOTSUPP; + udc->softconnect = (is_on != 0); if (can_pullup(udc)) fsl_writel((fsl_readl(&dr_regs->usbcmd) | USB_CMD_RUN_STOP), -- 2.7.4