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?
Regards,
--
Alex
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