Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932120AbbG1GBu (ORCPT ); Tue, 28 Jul 2015 02:01:50 -0400 Received: from muru.com ([72.249.23.125]:38135 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754724AbbG1GBs (ORCPT ); Tue, 28 Jul 2015 02:01:48 -0400 Date: Mon, 27 Jul 2015 23:01:43 -0700 From: Tony Lindgren To: Pavel Machek Cc: Pali =?utf-8?B?Um9ow6Fy?= , sre@debian.org, sre@ring0.de, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, patrikbachan@gmail.com Subject: Re: n900 in 4.2-rc0: repeating oopses Message-ID: <20150728060143.GK16878@atomide.com> References: <20150416093234.GA17423@amd> <20150629091146.GA5103@amd> <20150630092404.GA19285@amd> <20150630095310.GF27720@pali> <20150701065932.GS4156@atomide.com> <20150701072255.GA17577@pali> <20150701095954.GD7969@amd> <20150701103421.GV4156@atomide.com> <20150726092615.GA6824@amd> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150726092615.GA6824@amd> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2136 Lines: 67 * Pavel Machek [150726 02:29]: > Hi! > > > > > So, Pavel can you re-test? Maybe there can be problem with some driver > > > > which Tony did not compiled into zImage? Just speculation... > > > > > > I re-tested with today's git, and it seems to boot. Thanks for help... > > > > OK good to hear. > > > > > Now. "echo mem > /sys/power/state" is broken, as in "returns > > > immediately in about 50% cases". The messages are > > > > > > Powerdomain (per_pwrdm) didn't enter target state 1 > > > Powerdomain (core_pwerdm) didn't enter target state 1 > > > > > > Any ideas? Thanks, > > > > Works for me after enabling the idle timeouts with the following > > script and blanking the screen and disconnecting USB: > > > > Also both keyboard LEDs should start blinking after the idle > > timeout with screen blanked and USB disconnected. If not, you > > have some module loaded that blocks the deeper idle states. > > Ok, tried that, I had to do: > > cd /sys/class/gpio > echo 162 > export > cd gpio162 > echo out > direction > echo 1 > value > > to get the debug lights to work. But I could not get those leds to > blink. I think that's the GPIO override for them? And in that case the PMIC sys_clkreq and sys_off_mode signals are not cutting off the LEDs I believe. Also not that any driver blocking the deeper idle states will also cause the LEDs to stay on. And USB cable being plugged in too at least for core off.. So you if you're using NFSroot over USB Ethernet, you probably can only see the left LED ever go off. > > modprobe leds-gpio > > modprobe ledtrig-default-on > > Is this actually neccessary/relevant? Yes at least with omap2plus_defconfig. > > echo 255 > /sys/class/backlight/acx565akm/brightness > > And this? It used to be the backlight did not come on initially as modules or something.. May not be needed any longer. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/