[PATCH 07/11] MXS: Add separate MXS EHCI HCD driver

Chen Peter-B29397 B29397 at freescale.com
Sun Apr 22 21:44:10 EDT 2012


 
> NOTE: I still haven't figured out how to enable/disable the disconnection
> detector, it can't be enabled all the time, so I toggle PHY stuff from
> this
> driver, which I doubt is correct.
> 
Hi Marek, I have already explain how to use high speed disconnect detector
in early email.

 
 
> +
> +static irqreturn_t mxs_ehci_irq(struct usb_hcd *hcd)
> +{
> +	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
> +	struct usb_phy *phy = usb_get_transceiver();
> +	uint32_t status;
> +	static uint32_t discon;
> +
> +	if (phy && phy->otg && phy->otg->set_vbus) {
> +		status = ehci_readl(ehci, &ehci->regs->status);
> +		status = !!(status & STS_PCD);
> +		if (status != discon) {
> +			discon = status;
> +			phy->otg->set_vbus(phy->otg, status);
> +		}
> +	}
Conflict with your phy interrupt code.

 
 





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