Commit 4d91a855 authored Oct 02, 2015 by Joonyoung Shim Committed by Inki Dae Oct 26, 2015

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>

parent 323db0ed

drivers/gpu/drm/exynos/exynos_drm_iommu.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -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);
		}