linux-kernel - Re: N900 sleep mode (in 4.5-rc0, if that matters)

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Message-ID: <20160201211736.GA11283@amd>
Date:	Mon, 1 Feb 2016 22:17:36 +0100
From:	Pavel Machek <pavel@....cz>
To:	Tony Lindgren <tony@...mide.com>
Cc:	pali.rohar@...il.com, sre@...nel.org,
	kernel list <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	linux-omap@...r.kernel.org, khilman@...nel.org,
	aaro.koskinen@....fi, ivo.g.dimitrov.75@...il.com,
	patrikbachan@...il.com, serge@...lyn.com
Subject: Re: N900 sleep mode (in 4.5-rc0, if that matters)

Hi!

> > > > Any ideas what jumps to use the modules? Charger code?
> > > 
> > > I tried a kernel without charger code, and no luck, rmmod fails the
> > > same way. dmesg says:
> > > [  111.093078] wlan0: authenticated
> > > [  111.097442] wlan0: associate with 06:27:22:f9:10:6a (try 1/3)
> > > [  111.104553] wlan0: RX AssocResp from 06:27:22:f9:10:6a (capab=0x421
> > > status=0 aid=2)
> > > [  111.104705] wlan0: AP has invalid WMM params (AIFSN=1 for ACI 2),
> > > will use 2
> > > [  111.104736] wlan0: AP has invalid WMM params (AIFSN=1 for ACI 3),
> > > will use 2
> > > [  111.256652] wlan0: associated
> > > [  184.681427] HS USB OTG: no transceiver configured
> > > [  184.681488] musb-hdrc musb-hdrc.0.auto: musb_init_controller failed
> > > with status -517
> > > [  184.681976] HS USB OTG: no transceiver configured
> > > [  184.682006] musb-hdrc musb-hdrc.0.auto: musb_init_controller failed
> > > with status -517
> > > [  187.690338] twl4030_usb 48070000.i2c:twl@48:twl4030-usb:
> > > Initialized TWL4030 USB module
> > > [  187.698303] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk
> > > combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
> > > [  187.698333] musb-hdrc: MHDRC RTL version 1.400
> > > [  187.698333] musb-hdrc: setup fifo_mode 4
> > > [  187.698394] musb-hdrc: 28/31 max ep, 16384/16384 memory
> > > pavel@...0:/my/tui/ofone$
> > 
> > I added following hack to phy-twl4030-usb.c so that I could avoid
> > modules and module unloading problem. But still could not get it to
> > sleep :-(.
> 
> Are you sure you're using v4.5-rc? I recently patched away some
> issues where rmmod of the musb related modules did not work.

No, sorry, that was with 4.4. As you hit "PM regression with commit
5de85b9d57ab PM runtime re-init in v4.5-rc1", I thought I'd avoid
v4.5-rc. 

(I assume I have to insmod and rmmod, right? Because powersave is not
entered if I simply compile-out usb).

Would you have commit ids for those rmmod fixes? It might be good to
push them into stable, and I should try again with them applied...

Thanks and best regards,
								Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html