From: Akshu Agrawal <akshu.a@samsung.com>
Date: Mon, 28 Apr 2014 12:26:39 +0000 (+0900)
Subject: drm/exynos: fimd: clear channel before enabling iommu
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~44^2~17^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f13bdbd1fb75d0a6901012ab01a34754b2a4c6cf;p=pandora-kernel.git

drm/exynos: fimd: clear channel before enabling iommu

If any fimd channel was already active, initializing iommu will result
in a PAGE FAULT (e.e. u-boot could have turned on the display and
not disabled it before the kernel starts). This patch checks if any
channel is active before initializing iommu and disables it.

Signed-off-by: Akshu Agrawal <akshu.a@samsung.com>
Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
---

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