On Thu, Apr 24, 2014 at 12:54:13PM +0400, Paul Fertser wrote: > If VBUS is already present during the driver initialisation, the
s/initialisation/initialization > corresponding IRQ never fires, so there is no way the gadget can get > enumerated. > > This patch is real-life tested on an i.MX25 board with VBUS constantly > hooked up. > > Signed-off-by: Paul Fertser <fercer...@gmail.com> > --- > drivers/usb/gadget/fsl_udc_core.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/usb/gadget/fsl_udc_core.c > b/drivers/usb/gadget/fsl_udc_core.c > index a2f26cd..b4b1516 100644 > --- a/drivers/usb/gadget/fsl_udc_core.c > +++ b/drivers/usb/gadget/fsl_udc_core.c > @@ -2501,6 +2501,11 @@ static int __init fsl_udc_probe(struct platform_device > *pdev) > if (ret) > goto err_del_udc; > > + /* Now let it settle a bit and sense VBUS */ > + msleep_interruptible(1); > + if (fsl_readl(&dr_regs->otgsc) & OTGSC_STS_B_SESSION_VALID) > + udc_controller->vbus_active = 1; good fix, should this go to stable ? -- balbi
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