diff options
| author | Suresh Gupta <suresh.gupta@freescale.com> | 2014-03-21 14:01:05 (GMT) |
|---|---|---|
| committer | Jose Rivera <German.Rivera@freescale.com> | 2014-03-21 14:05:03 (GMT) |
| commit | d81e4fdda513f875e1444e63623aa4b6e823abec (patch) | |
| tree | 8969b5f856903f3c1c21b2ad911b5aedbf3bf4e5 /drivers/usb/gadget | |
| parent | 5944853bb052b7a34845cdcda3c14312378f5ffa (diff) | |
| download | linux-fsl-qoriq-d81e4fdda513f875e1444e63623aa4b6e823abec.tar.xz | |
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 <suresh.gupta@freescale.com>
Change-Id: I1ca5d3e7121a12a4e11ab163504180233367eaf6
Reviewed-on: http://git.am.freescale.net:8181/9367
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Jose Rivera <German.Rivera@freescale.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/fsl_udc_core.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index f1330fd..fa27a4c 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), |