From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bin Liu Subject: Re: [PATCHv2 00/15] Get MUSB PM runtime working again Date: Wed, 18 May 2016 13:10:20 -0500 Message-ID: <20160518181020.GB7522@uda0271908> References: <1463014396-4095-1-git-send-email-tony@atomide.com> <20160517211541.GA30701@uda0271908> <20160517215403.GP5995@atomide.com> <20160517220502.GA24963@uda0271908> <20160518180737.GQ5995@atomide.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Return-path: Content-Disposition: inline In-Reply-To: <20160518180737.GQ5995-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org> Sender: linux-usb-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Tony Lindgren Cc: Felipe Balbi , Kishon Vijay Abraham I , Ivaylo Dimitrov , Sergei Shtylyov , linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-omap@vger.kernel.org On Wed, May 18, 2016 at 11:07:37AM -0700, Tony Lindgren wrote: > * Bin Liu [160517 15:06]: > > On Tue, May 17, 2016 at 02:54:04PM -0700, Tony Lindgren wrote: > > > > > s/pm_runtime_put/pm_runtime_put_sync/ will fix it. I'm wondering why > > > it breaks though as dsps glue does not use autosuspend? It could also > > > > I am not familiar with pm-runtime framework, but I thought dsps glue > > does use autosuspend. > > > > > be a case where the parent and child PM runtime use counts get out > > > of sync? > > > > > > BTW, I did give my series a quick try here on j5eco-evm and that behaved > > > for peripheral and host enumeration. It's pretty much the same setup as > > > on am335x I believe. > > > > Does j5eco-evm have a otg port? > > Yes it has a mini-AB port and usb0_id is wired. > > > The case which is broken on mine is > > > - boot the board; > > - modprobe g-zero; > > - plug in a usb deivce with A-cable to the otg port; > > > > It generates drvvbus interrupt (0x100) and connect interrupt (0x10), but > > then session bit is gone and vbus has no power, so enum failed. > > Is this with or without the $subject series? Without. > > > I tried to enable some dynamic-debug log, but was unable to see any > > glue. I will try to enable musb reg access log tomorrow to see if I can > > find anything. > > OK, I'm looking at implementing proper PM runtime for dsps. > > Regards, > > Tony -- 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