On Fri, Nov 16, 2012 at 03:22:34PM +0200, Alexander Shishkin wrote:
> Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx> writes:
>
> > This adds mx53 as the next user of the usbmisc driver and makes it
> > possible to disable the overcurrent-detection of the internal phy.
> >
> > Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx>
> > Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
> > ---
> > drivers/usb/chipidea/usbmisc_imx.c | 28 ++++++++++++++++++++++++++++
> > 1 file changed, 28 insertions(+)
> >
> > diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
> > index 913e414..9718500 100644
> > --- a/drivers/usb/chipidea/usbmisc_imx.c
> > +++ b/drivers/usb/chipidea/usbmisc_imx.c
> > @@ -54,6 +54,29 @@ static struct usbmisc_usb_device *get_usbdev(struct device *dev)
> > return &usbmisc->usbdev[i];
> > }
> >
> > +static int usbmisc_imx53_init(struct device *dev)
> > +{
> > + struct usbmisc_usb_device *usbdev;
> > + void __iomem *reg;
> > + unsigned long flags;
> > + u32 val;
> > +
> > + usbdev = get_usbdev(dev);
> > + if (IS_ERR(usbdev))
> > + return PTR_ERR(usbdev);
> > +
> > + reg = usbmisc->base + usbdev->index * 8;
> > +
> > + if (usbdev->disable_oc) {
> > + spin_lock_irqsave(&usbmisc->lock, flags);
> > + val = readl(reg);
> > + writel(val | (1 << 5), reg);
>
> We know now that (1 << 5) probably means "disable overcurrent
> detection", but is there a definition for this register's bits
> somewhere?
Will add defines for the magic numbers used.
Thanks,
Michael
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
