tree 59aca3628bf4c945d20cfd9ca47b568906851cc9
parent eb7a3fc74c58be9c01cdbe23947ae9eb032e8365
author Joonyoung Shim <jy0922.shim@samsung.com> 1438073462 +0900
committer Inki Dae <inki.dae@samsung.com> 1439688213 +0900

drm/exynos: clear channels only when iommu is enabled

This is simplest solution about reported problem[1]. It's no problem to
clear channel only when iommu is enabled, if we consider that we cannot
recognize iommu errors when iommu is disabled and it have been valid
until now. But this cannot be nice solution.

[1] https://lkml.org/lkml/2015/7/21/404

Reported-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>