On Wed, Dec 23, 2015 at 08:05:13AM -0200, Fabio Estevam wrote: > Hi Peter, > > On Wed, Dec 23, 2015 at 7:49 AM, Peter Chen <hzpeterchen@xxxxxxxxx> wrote: > > > Fabio, there is a bug for imx28 usb low power mode, and we have no > > good way to implement > > workaround using current USB PHY framework, would you please test by > > add "usbcore.autosuspend = -1" > > at bootargs (no CI_HDRC_SUPPORTS_RUNTIME_PM needed to set for imx28) to > > see if this problem can fix? > > Excellent, passing 'usbcore.autosuspend=-1' fixes the issue! > > Do you think we could have a fix for mx28 so that we don't need to > pass this option? > No, we don't have it now. Felipe didn't agree to add more USB PHY interfaces to workaround this SoC problem, and I can't find any good ways to handle it either. http://lists.infradead.org/pipermail/linux-arm-kernel/2013-December/219215.html -- Best Regards, Peter Chen -- 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
