From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752280AbbCJJtE (ORCPT ); Tue, 10 Mar 2015 05:49:04 -0400 Received: from bhuna.collabora.co.uk ([93.93.135.160]:43430 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751272AbbCJJtA (ORCPT ); Tue, 10 Mar 2015 05:49:00 -0400 Message-ID: <54FEBE06.3000007@collabora.co.uk> Date: Tue, 10 Mar 2015 10:48:54 +0100 From: Javier Martinez Canillas User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.2.0 MIME-Version: 1.0 To: Kukjin Kim CC: linux-samsung-soc@vger.kernel.org, Andrzej Hajda , Marek Szyprowski , Kyungmin Park , Liquid.Acid@gmx.net, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: Re: [RFC PATCH 0/3] Fix power domains handling on exynos542x References: <1423139739-19881-1-git-send-email-a.hajda@samsung.com> <54D381F4.2080701@collabora.co.uk> In-Reply-To: <54D381F4.2080701@collabora.co.uk> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Kukjin, On 02/05/2015 03:45 PM, Javier Martinez Canillas wrote: > Hello Andrzej, > > Thanks a lot for finally finding what was causing the HDMI issue. > > On 02/05/2015 01:35 PM, Andrzej Hajda wrote: >> Hi, >> >> Exynos chipsets since 542x have asynchronous bridges connecting different IPs. >> These bridges should be operational during power domain switching, ie associated >> clocks cannot be gated. >> This patchset adds binding to provide such clocks per power domain and adds code >> which enables them during domain on/off operation. >> >> This patchset fixes power domain issues with disp1 domain and HDMI (some of them) >> on Odroid XU3: >> - disp1 power domain can be turned off, >> - no more "imprecise external abort" faults. >> >> The patchset is based on '[PATCH v5 0/9] Enable HDMI support on Exynos platforms' [1]. >> > > It also depends on '[PATCH 0/2] Add HDMI support for Exynos5420 platform' [2]. > >> It was successfully tested on OdroidXU3. >> >> [1]: http://permalink.gmane.org/gmane.linux.kernel.samsung-soc/42743 > > Your patches looks good to me so please feel free to add: > > Reviewed-by: Javier Martinez Canillas > > I also tested on an Exynos5420 Peach Pit Chromebook and both the "Power > domain power-domain disable failed" message and the system crash are gone. > > Tested-by: Javier Martinez Canillas > > Best regards, > Javier > > [2]: https://lkml.org/lkml/2015/1/20/235 > Any comments about this series? It fixes system hangs on Exynos 5420/5422/5800 boards and has been in the list for a while. Please keep in mind that a v2 of patch 3/3 was posted [0]. Best regards, Javier [0]: https://lkml.org/lkml/2015/2/6/138