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drm/exynos: fix to detach device of iommu 

The arm_iommu_detach_device() is a function to detach device of iommu
attached by arm_iommu_attach_device(). The exynos-drm uses
arm_iommu_attach_device() so it should use arm_iommu_detach_device() to
detach device of iommu, not iommu_detach_device().

The drm_release_iommu_mapping() is a function to release mapping of
iommu created by arm_iommu_create_mapping(). It is called by
exynos_drm_unload() so shouldn't be called by drm_iommu_detach_device().

Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Joonyoung Shim 2015-10-02 09:30:38 +09:00 committed by Inki Dae
parent 323db0ed7d
commit 4d91a85598
1 changed files with 1 additions and 2 deletions
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3
drivers/gpu/drm/exynos/exynos_drm_iommu.c
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@ -139,6 +139,5 @@ void drm_iommu_detach_device(struct drm_device *drm_dev,
if (!mapping || !mapping->domain)
return;
iommu_detach_device(mapping->domain, subdrv_dev);
drm_release_iommu_mapping(drm_dev);
arm_iommu_detach_device(subdrv_dev);
}