openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Suresh Gupta 2014-03-21 16:38:12 +05:30 committed by Felipe Balbi
parent 97839ca4b0
commit 252455c403
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/usb/gadget/fsl_udc_core.c
View File

@ -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),