On Fri, Aug 09, 2013 at 06:25:29PM +0800, Peter Chen wrote:
> > -void usbmisc_unset_ops(const struct usbmisc_ops *ops)
> > -{
> > - usbmisc_ops = NULL;
> > -}
> > -EXPORT_SYMBOL_GPL(usbmisc_unset_ops);
> > -
> > -int usbmisc_get_init_data(struct device *dev, struct usbmisc_usb_device
> > *usbdev)
> > +static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev)
> > {
> > struct device_node *np = dev->of_node;
> > struct of_phandle_args args;
> > + struct imx_usbmisc_data *data;
> > int ret;
> >
> > - usbdev->dev = dev;
> > + if (!of_get_property(np, "fsl,usbmisc", NULL))
> > + return NULL;
> >
> > ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells",
> > 0, &args);
> > if (ret) {
> > dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n",
> > ret);
> > - memset(usbdev, 0, sizeof(*usbdev));
> > - return ret;
> > + return ERR_PTR(ret);
> > }
> > - usbdev->index = args.args[0];
> > - of_node_put(args.np);
>
> Is it a bug fix?
Nope, it introduces one. The of_node_put should stay there. Will fix.
> > + data->usbmisc_data = usbmisc_get_init_data(&pdev->dev);
> > + if (IS_ERR(data->usbmisc_data))
> > + return PTR_ERR(data->usbmisc_data);
> > +
>
> You need to consider mx23/mx28 case which doesn't have usbmisc.
The idea was that if fsl,usbmisc is not present the device doesn't need
usbmisc handling, but I haven't implemented this correctly.
Sascha
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