On Fri, Feb 24, 2012 at 3:46 PM, Felipe Balbi <balbi@xxxxxx> wrote: > Hi, > > On Fri, Feb 24, 2012 at 03:36:15PM +0530, Keshava Munegowda wrote: >> From: Keshava Munegowda <Keshava_mgowda@xxxxxx> >> >> It is observed that the echi ports of 3430 sdp board >> are not working due to the random timing of programming >> the associated GPIOs of the ULPI PHYs of the EHCI for reset. >> If the PHYs are reset at during usbhs core driver, host ports will >> not work because EHCI driver is loaded after the resetting PHYs. >> The PHYs should be in reset state while initializing the EHCI >> controller. >> The code which does the GPIO pins associated with the PHYs >> are programmed to reset is moved from the USB host core driver >> to EHCI driver. >> >> Signed-off-by: Keshava Munegowda <keshava_mgowda@xxxxxx> >> Reviewed-by: Partha Basak <parthab@xxxxxxxxxxxx> > > won't this cause issues with EHCI/OHCI interactions ? I mean, what if > you connect a FS/LS device and port is handed over to OHCI, does OHCI > have any needs to reset the PHY or something similar ? No, it will not cause any issues with EHCI-OHCI issues. But its difficult to comment on this because we don't have port handoff supported in hardware. regards keshava -- 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
