From fc2e013f78c42fdafcb48f4922c2ae6d2c8e7d09 Mon Sep 17 00:00:00 2001
From: Hyungwon Hwang <human.hwang@samsung.com>
Date: Mon, 22 Jun 2015 19:05:04 +0900
Subject: [PATCH] drm/exynos: add drm_iommu_attach_device_if_possible()

Every CRTC drivers in Exynos DRM implements the code which checks
whether IOMMU is supported or not, and if supported enable it.
Making new helper for it generalize each CRTC drivers.

Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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