Re: [PATCH] drm/exynos: fix to detach device of iommu

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Merged.

Thanks,
Inki Dae


2015년 10월 02일 09:30에 Joonyoung Shim 이(가) 쓴 글:
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@xxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v3.8+
---
  drivers/gpu/drm/exynos/exynos_drm_iommu.c | 3 +--
  1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.c b/drivers/gpu/drm/exynos/exynos_drm_iommu.c
index 055e8ec..d73b9ad 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_iommu.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.c
@@ -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);
  }

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