From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com ([192.55.52.43]:12338 "EHLO mga05.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1167711AbcKAMlm (ORCPT ); Tue, 1 Nov 2016 08:41:42 -0400 Date: Tue, 1 Nov 2016 14:41:37 +0200 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: Paul Bolle Cc: Maarten Lankhorst , intel-gfx@lists.freedesktop.org, Mika Kahola , bruno.pagani@ens-lyon.org, Daniel J Blueman , Joseph Yasi , stable@vger.kernel.org Subject: Re: [PATCH] drm/i915: Fix cdclk vs. dev_cdclk mess when not recomputing things Message-ID: <20161101124137.GT4617@intel.com> References: <1477673960-3274-1-git-send-email-ville.syrjala@linux.intel.com> <1354f7bd-a473-f941-cd79-d1fc7259fa38@linux.intel.com> <1477991271.2230.40.camel@tiscali.nl> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1477991271.2230.40.camel@tiscali.nl> Sender: stable-owner@vger.kernel.org List-ID: On Tue, Nov 01, 2016 at 10:07:51AM +0100, Paul Bolle wrote: > On Tue, 2016-11-01 at 09:57 +0100, Maarten Lankhorst wrote: > > Otherwise looks sane, I have a similar patch in my tree. I didn't > > submit it yet but the fix was similar. Except for the > > dev_cdclk stuff. > > > > With the last dev_cdclk assignment removed: > > > > Reviewed-by: Maarten Lankhorst > > So I've been running this patch for a few days now. First I tested it > on top of v4.8.4. Now I'm running it on top of v4.8.5. > > My current v4.8.5 boot saw this new (for me) *ERROR*, twice: > � ��<3>[43483.521341] [drm:skl_set_cdclk [i915]] *ERROR* failed to inform PCU about cdclk change > <3>[108639.090776] [drm:skl_set_cdclk [i915]] *ERROR* failed to inform PCU about cdclk change > > Related or a coincidence? Not directly related. That's actually a more serious problem we really need to figure out. I already tried to fix it but apparently I failed. -- Ville Syrj�l� Intel OTC