On Wed, Nov 21, 2012 at 03:06:33PM +0100, Michael Grzeschik wrote:
> This adds a post handling routine which is called after
> ci13xxx_add_device was called. The first user is the mx25, which has to
> disable the external-vbus-divider after the ude has started.
udc has started?
>
>
> +static int usbmisc_imx25_post(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 + MX25_USB_PHY_CTRL_OFFSET;
> +
> + if (usbdev->evdo) {
> + spin_lock_irqsave(&usbmisc->lock, flags);
> + val = readl(reg);
> + writel(val | MX25_BM_EXTERNAL_VBUS_DIVIDER, reg);
> + spin_unlock_irqrestore(&usbmisc->lock, flags);
> + mdelay(5); /* needed to stabilize voltage */
better use usleep_range to avoid busy-wait.
> + }
> +
> + return 0;
> +}
> +
> static int usbmisc_imx53_init(struct device *dev)
> {
> struct usbmisc_usb_device *usbdev;
> @@ -122,6 +150,10 @@ static int usbmisc_imx6q_init(struct device *dev)
> return 0;
> }
>
> +static const struct usbmisc_ops imx25_usbmisc_ops = {
> + .post = usbmisc_imx25_post,
> +};
> +
> static const struct usbmisc_ops imx53_usbmisc_ops = {
> .init = usbmisc_imx53_init,
> };
> @@ -131,6 +163,7 @@ static const struct usbmisc_ops imx6q_usbmisc_ops = {
> };
>
> static const struct of_device_id usbmisc_imx_dt_ids[] = {
> + { .compatible = "fsl,imx25-usbmisc", .data = (void *)&imx25_usbmisc_ops
> },
> { .compatible = "fsl,imx53-usbmisc", .data = (void *)&imx53_usbmisc_ops
> },
> { .compatible = "fsl,imx6q-usbmisc", .data = (void *)&imx6q_usbmisc_ops
> },
> { /* sentinel */ }
> --
> 1.7.10.4
>
> --
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--
Best Regards,
Peter Chen
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