From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg KH Subject: Re: EHCI and MUSB do not discover devices without CONFIG_PM Date: Tue, 28 Nov 2017 08:33:28 +0100 Message-ID: <20171128073328.GF10757@kroah.com> References: <20171127220833.GA10070@lenoch> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20171127220833.GA10070@lenoch> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Ladislav Michl Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-omap@vger.kernel.org On Mon, Nov 27, 2017 at 11:08:33PM +0100, Ladislav Michl wrote: > Hi there, > > USB hosts do not discover any connected device on OMAP3 based board > with CONFIG_PM=n. Just enabling this option is enough to restore working > behaviour. Nothing unusual in log. Tested 4.14.2 and 4.15-rc1. I know > a lot of stuff depends on CONFIG_PM, but is this expected behaviour? > Neither EHCI nor MUSB is working without CONFIG_PM. What bus type is your controllers on? PCI? platform? Something else? And yes, perhaps this is to be expected, why would you not want CONFIG_PM to be enabled? :) thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html