linux-kernel - Re: [PATCH] Revert "drm/exynos: IOMMU support should not be selectable by user"

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Message-ID: <CABxcv=kdHsmQ1sjD8Ty6pjdH3HXeV+wjSRNBQC+7BM+EnaJbQg@mail.gmail.com>
Date:	Tue, 17 Feb 2015 21:18:28 +0100
From:	Javier Martinez Canillas <javier@...hile0.org>
To:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Cc:	Inki Dae <inki.dae@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	sw0312.kim@...sung.com, Kyungmin Park <kyungmin.park@...sung.com>,
	David Airlie <airlied@...ux.ie>, Kukjin Kim <kgene@...nel.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] Revert "drm/exynos: IOMMU support should not be
 selectable by user"

Hello Charles,

On Tue, Feb 17, 2015 at 5:58 PM, Charles Keepax
<ckeepax@...nsource.wolfsonmicro.com> wrote:
> This reverts commit 8dcc14f82f06fce997e35f4c77ced9d4ed192f31.
>
> This patch causes this error on Arndale:

IMHO the commit you are referring is correct so it should not be
reverted but I also had the same error on different boards (Exynos5250
Snow, Exynos5420 Peach Pit and Exynos5800 Peach Pi).

So I posted a patch [0] today to disable Exnos IOMMU support in
exynos_defconfig until these issues gets fixed.

Best regards,
Javier

[0]: https://lkml.org/lkml/2015/2/17/163
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